WO2024093587A1 - Charging circuit, charging method, charging system, storage medium and chip system - Google Patents

Charging circuit, charging method, charging system, storage medium and chip system Download PDF

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Publication number
WO2024093587A1
WO2024093587A1 PCT/CN2023/121685 CN2023121685W WO2024093587A1 WO 2024093587 A1 WO2024093587 A1 WO 2024093587A1 CN 2023121685 W CN2023121685 W CN 2023121685W WO 2024093587 A1 WO2024093587 A1 WO 2024093587A1
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WO
WIPO (PCT)
Prior art keywords
charging
battery
module
voltage
fast
Prior art date
Application number
PCT/CN2023/121685
Other languages
French (fr)
Chinese (zh)
Inventor
吴彪
陈泽曦
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Publication of WO2024093587A1 publication Critical patent/WO2024093587A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Definitions

  • the present application relates to the technical field of terminal equipment, and in particular to a charging circuit, a charging method, a charging system, a storage medium and a chip system.
  • the battery capacity of terminal devices is also increasing to improve the endurance of terminal devices.
  • the terminal device can be provided with multiple batteries or multiple cells connected in parallel to increase the battery capacity.
  • the terminal device Since multiple batteries or multiple cells are connected in parallel, the terminal device needs to be charged in a derating manner. That is, the terminal device can adjust the charging current of each battery or each cell according to the maximum charging current of the battery or cell, so that the current input to each battery or each cell is less than the maximum charging current of the battery or cell (such as charging at 80% of the maximum charging current), thereby preventing the battery from swelling due to fast charging and causing safety hazards.
  • the present application provides a charging circuit, a charging method, a charging system, a storage medium and a chip system, which solve the problem in the prior art that the terminal device is charged by reducing the charging current, resulting in low charging efficiency.
  • a charging circuit comprising: a control module, a charging module, a first fast charging module, a second fast charging module, a first detection module, a second detection module and a first switch device;
  • the first fast charging module and the first detection module are both connected to the first battery in the battery pack, and the first detection module is also connected to the control module;
  • the second fast charging module and the second detection module are both connected to the second battery in the battery pack, and the second detection module is also connected to the control module;
  • the first switch device is connected between the charging module and the first battery, and the charging module is connected to the second battery;
  • the control module is also respectively connected to the charging module, the first fast charging module, the second fast charging module and the first switching device, and is used to control the on or off of the charging module, the first fast charging module, the second fast charging module and the first switching device according to the voltage across the first battery detected by the first detection module and the voltage across the second battery detected by the second detection module.
  • the charging circuit provided in the embodiment of the present application, without affecting the safety of the battery, sets multiple fast charging modules and switching devices corresponding to each fast charging module in the charging circuit, and by adjusting the state of each switching device during the fast charging stage of charging the terminal device, each battery can be fast charged separately through the fast charging module, so that a larger current can be used to charge the battery during the fast charging stage, thereby reducing the time spent on charging the terminal device and improving the charging efficiency of the terminal device.
  • the charging circuit further includes: a second switching device;
  • the second switch device is connected between the charging module and the second battery.
  • the state of the first switching device or the second switching device can be adjusted, thereby improving the flexibility and reliability of charging of the terminal device.
  • the first switching device is integrated in the charging module.
  • the first switching device and the second switching device are both integrated in the charging module.
  • the first detection module and the second detection module are both integrated in the charging module;
  • the first detection module is used to send the detected voltage across the first battery to the control module;
  • the second detection module is used to send the detected voltage across the second battery to the control module.
  • the first detection module is integrated in the first fast charging module
  • the second detection module is integrated in the second fast charging module.
  • the charging circuit further includes: a third fast charging module, a third detection module, and a third switching device;
  • the third fast charging module and the third detection module are both connected to the third battery in the battery pack, and the third detection module is also connected to the control module;
  • the third switch device is connected between the charging module and the third battery.
  • the charging circuit can continue to be connected to the third battery on the basis of being connected to the first battery and the second battery, thereby improving the flexibility and expansibility of the charging circuit.
  • a charging method is provided, which is applied to a charging circuit, wherein the charging circuit includes: a charging module, a first fast charging module, a second fast charging module, and a first switching device, wherein the charging module is used to charge a first battery and a second battery in a battery pack, wherein the first switching device is connected in series between the charging module and the first battery, the first fast charging module is connected to the first battery, and the second fast charging module is connected to the second battery;
  • the charging method comprises:
  • the state of the first switching device is adjusted so that the circuit structure of the charging circuit changes, and the first battery is charged through the first fast charging module and the second battery is charged through the second fast charging module.
  • adjusting the state of the first switching device according to the first voltage and the second voltage includes:
  • the state of the first switching device is maintained unchanged.
  • the method further includes:
  • the current output by the first fast charging module and/or the second fast charging module is adjusted.
  • adjusting the current output by the first fast charging module and/or the second fast charging module according to the magnitude relationship between the voltage difference and a preset second voltage threshold includes:
  • the current output by the first fast charging module and/or the second fast charging module remains unchanged
  • the voltage difference is greater than the second voltage threshold and the first voltage is greater than the second voltage, reducing the current output by the first fast charging module and/or increasing the current output by the second fast charging module;
  • the magnitude relationship between the first voltage and the second voltage is determined when calculating the voltage difference.
  • the method further includes:
  • the first battery is charged by the first fast charging module using a constant voltage charging method, and the second battery is charged by the second fast charging module using a constant voltage charging method.
  • the method further includes:
  • the state of the first switching device is adjusted again, and the first battery and the second battery are charged simultaneously through the charging module until charging is completed.
  • adjusting the state of the first switching device again according to the first charging current and the second charging current in combination with a preset current threshold includes:
  • the first battery and the second battery are charged respectively by the first fast charging module and the second fast charging module in a constant voltage charging manner;
  • the state of the first switching device is adjusted again.
  • a charging system comprising: a terminal device and an adapter, the terminal device comprising the charging circuit as described in any one of the first aspects;
  • the adapter is connected to the charging circuit of the terminal device through the charging port of the terminal device;
  • the terminal device or the charging circuit adopts the charging method described in any one of the second aspects to charge the battery pack of the terminal device.
  • a computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the charging method as described in any one of the second aspects is implemented.
  • a chip system comprising a memory and a processor, wherein the processor executes a computer program stored in the memory to implement a charging method as described in any one of the second aspects.
  • FIG1A is a schematic diagram of the structure of a charging circuit
  • FIG1B is a schematic diagram of the structure of another charging circuit
  • FIG2 is a schematic diagram of a charging scenario based on a charging circuit according to an embodiment of the present application
  • FIG3 is a circuit topology diagram of a charging circuit provided in an embodiment of the present application.
  • FIG4 is a circuit topology diagram of another charging circuit provided in an embodiment of the present application.
  • FIG5 is a circuit topology diagram of another charging circuit provided in an embodiment of the present application.
  • FIG6 is a circuit topology diagram of another charging circuit provided in an embodiment of the present application.
  • FIG7 is a circuit topology diagram of another charging circuit provided in an embodiment of the present application.
  • FIG8 is a circuit topology diagram of another charging circuit provided in an embodiment of the present application.
  • FIG9 is a circuit topology diagram of another charging circuit provided in an embodiment of the present application.
  • FIG10 is a schematic flow chart of a charging method provided in an embodiment of the present application.
  • FIG. 11 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application.
  • the battery capacity of terminal devices can be increased by setting multiple batteries or multiple cells. Accordingly, on the basis of increasing the battery capacity, the terminal device can also use a fast charging method to charge multiple batteries or multiple cells to reduce the time spent on charging the terminal device.
  • multiple batteries or multiple cells can be connected in series or in parallel, and the terminal device can also use different methods to charge multiple batteries or multiple cells using different connection methods.
  • FIG. 1A is a schematic diagram of the structure of a charging circuit.
  • the charging circuit comprises: a charging module, a battery 1 and a battery 2, wherein the charging module, the battery 1 and the battery 2 are connected in series in sequence.
  • the terminal device can input the maximum charging current to battery 1 and battery 2 to charge battery 1 and battery 2, thereby reducing the time spent on charging.
  • the maximum charging current is the maximum charging current of battery 1 and battery 2.
  • the step-down module will cause a certain amount of energy loss during the step-down process, thus affecting the endurance of the terminal device.
  • FIG. 1B is a structural diagram of another charging circuit.
  • the charging circuit includes: a charging module, a battery 1 and a battery 2, wherein the battery 1 and the battery 2 are connected in parallel, and the charging module is connected in series with the parallel-connected battery 1 and the battery 2.
  • the currents input to battery 1 and battery 2 may be inconsistent.
  • the current input to battery 1 is greater than the maximum charging current of battery 1, while the current input to battery 2 is less than the maximum charging current of battery 2. Accordingly, after multiple fast charging of battery 1 and battery 2, if a battery is charged with a charging current greater than the maximum charging current for a long time, it may cause the battery to swell and cause safety problems. Therefore, it is necessary to use a derating charging method for charging.
  • the terminal device can first determine the maximum charging current of battery 1 and battery 2, and then adjust the current output by the charging module according to the maximum charging current, thereby simultaneously performing derating charging on battery 1 and battery 2.
  • the maximum charging current of battery 1 and battery 2 is both 2 amperes (A), and the battery is charged at 80% of the maximum charging current, so the current input to each battery is 1.6A.
  • the above only takes two batteries as an example to illustrate the circuit structure of charging two batteries connected in series or in parallel.
  • other numbers of batteries can be set in series or in parallel in the terminal device.
  • three batteries, five batteries or more batteries can be set in the terminal device.
  • the embodiment of the present application does not specifically limit the number of batteries in the terminal device.
  • the embodiments of the present application propose a charging circuit and a charging method.
  • multiple fast charging modules and switching devices corresponding to each fast charging module are arranged in the charging circuit.
  • each battery can be fast charged separately through the corresponding fast charging module, so that a larger current can be used to charge the battery during the fast charging stage, thereby reducing the time spent on charging the terminal device and improving the charging efficiency of the terminal device.
  • FIG. 2 is a schematic diagram of a charging scenario involved in a charging circuit provided in an embodiment of the present application, the charging scenario including: a terminal device 210 and an adapter 220, the terminal device 210 can be connected to the adapter 220 through a pre-set charging port.
  • the terminal device 210 may include: a charging circuit 2101 and a battery pack 2102 , and a plurality of batteries in the battery pack 2102 are all connected to the charging circuit 2101 .
  • the adapter 220 can communicate with the terminal device 210 through a preset charging protocol.
  • the terminal device 210 exchanges data with the adapter 220 to determine the charging method supported by the terminal device 210. If the terminal device 210 exchanges data with the adapter 220 using the charging protocol corresponding to fast charging, it means that the terminal device 210 supports fast charging, and the adapter 220 can charge the terminal device 210 using the fast charging method. If the terminal device 210 exchanges data with the adapter 220 using the charging protocol corresponding to conventional charging, it means that the terminal device 210 does not support fast charging, and the adapter 220 can charge the terminal device 210 using the conventional charging method.
  • both conventional charging and fast charging can be charging methods for terminal devices.
  • the current input to the battery during conventional charging is less than the current input to the battery during fast charging.
  • the charging current input to the terminal device by the adapter is 1A; while during fast charging, the charging current input to the terminal device by the adapter is 2.4A.
  • the embodiment of the present application does not limit the current output by the adapter during conventional charging and fast charging.
  • the following is an example of a terminal device supporting fast charging.
  • the terminal device When the terminal device is charged in a fast charging manner, the terminal device can be charged through multiple charging stages such as a trickle charging stage, a fast charging stage, and a constant voltage charging stage.
  • the trickle charging stage is a stage in which a small current is used for charging to prevent damage to the battery;
  • the fast charging stage (hereinafter referred to as the fast charging stage) is a stage in which a large current is used for charging to reduce the charging time;
  • the constant voltage charging stage is a stage in which the output voltage remains unchanged after the battery has a certain amount of power, and the output current decreases as the battery power increases.
  • the terminal device may also be charged in a manner including other charging stages, and the various charging stages included in the fast charging in the embodiment of the present application are not specifically limited.
  • the adapter 220 can first use trickle charging to charge the terminal device 210 with a small current through the charging module in the charging circuit 2101.
  • the adapter 220 can enter the fast charging stage for charging, that is, high current charging.
  • the terminal device 210 when the terminal device 210 enters the fast charging stage, it can first adjust the various switching devices in the charging circuit 2101 so that each battery in the battery pack 2102 is separately connected to the corresponding fast charging modules in the charging circuit 2101, so that each battery can be charged with a large current individually through each fast charging module, thereby reducing the time spent on charging the terminal device.
  • the switching device can be a device, circuit or a combination of a device and a circuit with a turn-on or turn-off function.
  • the switching device can be a triode, a metal-oxide-semiconductor field-effect transistor (MOSFET) (hereinafter referred to as MOS tube) or a relay.
  • MOSFET metal-oxide-semiconductor field-effect transistor
  • the embodiments of the present application do not specifically limit the switching device.
  • the battery power of the terminal device is further improved, so that it can enter the constant voltage charging stage for charging.
  • the adapter 220 can continue to keep the output voltage unchanged through each fast charging module and charge by constant voltage charging.
  • each switching device can be adjusted again to stop charging through the fast charging module, and instead charge each battery through the charging module in the charging circuit 2101.
  • the current input to the battery is less than a certain threshold, it can be considered that the terminal device is fully charged.
  • the states of the various switching devices in the charging circuit 2101 can be adjusted so that each battery of the battery pack 2102 can be charged individually through the corresponding fast charging module, thereby being able to charge according to the maximum charging current of the battery, thereby reducing the time required for charging the terminal device.
  • the charging circuit may include multiple fast charging modules, each fast charging module corresponds one-to-one to each battery in the battery pack 2102, and each switching device in the charging circuit may also correspond one-to-one to each fast charging module.
  • the embodiment of the present application does not specifically limit the number of fast charging modules, the number of switching devices, and the number of each battery in the battery pack 2102.
  • the following further describes the charging circuit 2101 of the terminal device by taking a battery pack including two batteries (a first battery and a second battery) as an example.
  • the charging circuit may include: a control module 301, a first fast charging module 302, a second fast charging module 303, a first switching device 304, a second switching device 305, a first detection module 306, a second detection module 307 and a charging module 308.
  • control module 301 is respectively connected to the first detection module 306 and the second detection module 307. As shown by the dotted lines in FIG3 , the control module 301 is used to adjust the charging mode of the terminal device according to the information collected by the first detection module 306 and the second detection module 307.
  • the first detection module 306 may be connected to the first battery, and the second detection module 307 may be connected to the second battery.
  • the first detection module 306 can send a first voltage across the first battery to the control module 301, and the second detection module 307 can send a second voltage across the second battery to the control module 301.
  • the control module 301 can output and control the first fast charging module 302, the second fast charging module 303, the first switch device 304, the second switch device 305 and the charging module 308 according to the first voltage and the second voltage.
  • both the first fast charging module 302 and the second fast charging module 303 can be connected to the charging port of the terminal device, thereby connecting to the adapter.
  • the first fast charging module 302 can also be connected to the first battery, and the second fast charging module 303 can also be connected to the second battery.
  • the charging module 308 can also be connected to the charging port of the terminal device, thereby connecting to the adapter.
  • the charging module 308 can also be connected to the first switch device 304 and the second switch device 305 respectively, and the first switch device 304 can also be connected to the first fast charging module 302, and the second switch device 305 can also be connected to the second fast charging module 303.
  • the charging module 308 can also be connected to other components of the terminal device (such as a processor) so that the charging module 308 can power various components of the terminal device based on the power provided by the battery pack to maintain the normal operation of the terminal device.
  • first fast charging module 302 the second fast charging module 303 and the charging module 308 are connected to the charging port of the terminal device, they can be directly connected to the charging port or connected to the charging port through the protection module of the terminal device.
  • the embodiment of the present application does not specifically limit the connection method between the first fast charging module 302, the second fast charging module 303 and the charging module 308 and the charging port.
  • control module 301 may be a micro control unit (MCU) or other components with data processing functions.
  • MCU micro control unit
  • the embodiment of the present application does not specifically limit the control module 301.
  • first fast charging module 302 and the second fast charging module 303 can be charge pump circuit modules or switching power supply circuit modules.
  • the embodiment of the present application does not specifically limit the first fast charging module 302 and the second fast charging module 303.
  • components with switching functions can be set in the first fast charging module 302 and the second fast charging module 303.
  • the first fast charging module 302 and the second fast charging module 303 can charge the battery of the terminal device.
  • the first fast charging module 302 and the second fast charging module 303 stop charging the battery of the terminal device.
  • first detection module 306 and second detection module 307 can be different components, or they can be the same components, or they can be the same component, that is, the first detection module 306 and the second detection module 307 can be integrated in the component to complete the detection of the voltage at both ends of the battery.
  • the embodiment of the present application does not specifically limit the first detection module 306 and the second detection module 307.
  • the adapter determines based on the charging protocol that the terminal device supports fast charging. If the battery power of the terminal device is low, the control module 301 of the charging circuit can instruct the adapter to use trickle charging first, and charge the first battery and the second battery simultaneously through the charging module 308.
  • the control module 301 of the charging circuit can also determine the power of the first battery and the power of the second battery respectively through the first detection module 306 and the second detection module 307.
  • the terminal device can also determine the power of the first battery and the second battery respectively through the first voltage at both ends of the first battery and the second voltage at both ends of the second battery.
  • the embodiment of the present application does not limit the method of determining the power corresponding to the first battery and the second battery respectively.
  • the first detection module 306 and the second detection module 307 can respectively continuously detect the power levels of the first battery and the second battery, that is, detect the first voltage across the first battery and the second voltage across the second battery, and send the detection results to the control module 301.
  • the control module 301 can compare the received detection result with a preset first voltage threshold. If both the first voltage and the second voltage are greater than the first voltage threshold, it means that both the first battery and the second battery can start fast charging.
  • the first voltage threshold is a preset voltage parameter used to determine whether the battery can be charged using a high current charging method.
  • the control module 301 can adjust the state of the first switch device 304 or the second switch device 305, so that the first switch device 304 or the second switch device 305 switches from a closed state to an open state, thereby changing the circuit structure of the charging circuit.
  • the first battery is connected to the first fast charging module 302 alone, and the second battery is connected to the second fast charging module 303 alone, so that the first battery and the second battery can be charged separately, without limiting the current input to the first battery and the second battery, and the maximum charging current of the first battery and the second battery can be used.
  • Charging can be carried out to improve the charging efficiency of the terminal equipment.
  • the control module 301 can send instructions to the first switch device 304 or the second switch device 305 to control the first switch device 304 or the second switch device 305 (indicated by disconnecting the first switch device 304 in Figure 4) to switch from a closed state to an open state.
  • the first switch device 304 and the second switch device 305 are both in the closed state, the first battery and the second battery are respectively connected to the corresponding fast charging modules separately, so that the first battery can be charged separately through the first fast charging module 302, and the second battery can also be charged separately through the second fast charging module 303.
  • the first detection module 306 and the second detection module 307 may continue to detect the first voltage of the first battery and the second voltage of the second battery respectively, and send the detection results to the control module 301.
  • the control module 301 may compare the first voltage and the second voltage to obtain the voltage difference between the two.
  • the control module 301 may adjust the first fast charging module 302 and/or the second fast charging module 303 (such as adjusting the duty cycle of the first fast charging module 302 and/or the second fast charging module 303) in order to maintain voltage balance, so that the current output by the first fast charging module 302 and/or the second fast charging module 303 changes, thereby gradually reducing the voltage difference between the first voltage at both ends of the first battery and the second voltage at both ends of the second battery.
  • the second voltage threshold is a preset voltage parameter used to determine whether the voltage difference between the first battery and the second battery needs to be adjusted.
  • the difference between the first voltage and the second voltage is less than or equal to the preset second voltage threshold, it means that the voltage difference between the first voltage and the second voltage is small, and there is no need to adjust the first fast charging module 302 and the second fast charging module 303.
  • the first battery and the second battery can continue to be charged through the first fast charging module 302 and the second fast charging module 303 respectively until the voltage of at least one of the first battery and the second battery reaches the third voltage threshold.
  • the third voltage threshold is a preset voltage parameter used to determine whether the battery needs to be charged in a constant voltage mode.
  • control module 301 determines that the voltage of at least one battery reaches the third voltage threshold based on the detection results sent by the first detection module 306 and the second detection module 307, the control module 301 can control the first fast charging module 302 and the second fast charging module 303 to adopt a constant voltage charging method to charge the first battery and the second battery respectively.
  • control module 301 may continue to detect the first current input to the first battery and the second current input to the second battery through the first detection module 306 and the second detection module 307, and calculate the sum of the first current and the second current to obtain the total charging current.
  • the control module 301 can adjust the first switch device 304 or the second switch device 305 again, and the control module 301 can also control the first fast charging module 302 and the second fast charging module 303 to stop working, and control the charging module 308 to charge the first battery and the second battery at the same time until the terminal device is fully charged.
  • the current threshold is a preset current parameter used to determine whether the constant voltage charging mode needs to be terminated, that is, to determine whether each battery of the battery pack can be charged by the charging module 308. Moreover, the current threshold can be determined according to the characteristics of the charging current of the first battery and the second battery during the charging process, and the embodiment of the present application does not specifically limit the parameters of the current threshold.
  • any one of the two switching devices can be retained and the other switching device can be removed, so that the circuit structure of the charging circuit can be adjusted through the retained switching device.
  • Figure 5 takes the example of removing the first switching device 304 and retaining the second switching device 305.
  • the detection module and/or switch device provided in the embodiments of the present application can be integrated with other components in the charging circuit in a variety of ways to reduce the area occupied by the charging circuit and improve the flexibility of the charging circuit.
  • FIG. 6 is a circuit topology diagram of another charging circuit provided in an embodiment of the present application.
  • the first detection module 306 is integrated in the first fast charging module 302
  • the second detection module 307 is integrated in the second fast charging module 303.
  • FIG. 7 is a circuit topology diagram of another charging circuit provided in an embodiment of the present application.
  • the first switch device 304 and the second switch device 305 are both integrated in the charging module 308, and there is no need to set additional switch devices in the charging circuit, thereby The area of the charging circuit can be reduced and the flexibility of the charging circuit can be improved.
  • FIG8 is a circuit topology diagram of another charging circuit provided in an embodiment of the present application.
  • the first switch device 304, the second switch device 305, the first detection module 306 and the second detection module 307 are all integrated in the charging module 308. Accordingly, the detection points for detecting the voltage of the first detection module 306 and the second detection module 307 can be built into the charging module 308, or can be sampled at the positive and negative electrodes of the first battery and the second battery through the external signal pin of the charging module 308.
  • the embodiment of the present application does not specifically limit the detection points of the first detection module 306 and the second detection module 307.
  • the first detection module 306 and the second detection module 307 can exchange data with the control module 301 through the communication interface of the charging module 308, without the need to additionally set up switching devices and detection modules in the charging circuit, thereby reducing the area of the charging circuit and improving the flexibility of the charging circuit.
  • the above description uses the example of connecting a charging circuit to two batteries to explain the connection relationship and working principle of the charging circuit.
  • the battery pack of the terminal device may include multiple batteries. The following describes the case where the charging circuit is connected to multiple batteries.
  • FIG. 9 is a circuit topology diagram of another charging circuit provided in an embodiment of the present application.
  • the charging circuit may include N fast charging modules, each of which is connected to a corresponding battery in the terminal device.
  • the charging circuit may also include N detection modules, each of which is used to detect parameters such as current and voltage of the corresponding battery.
  • the charging circuit may also include N switching devices, each of which is used to control whether the corresponding battery is connected in parallel with other batteries. Wherein N is a positive integer.
  • the charging circuit provided in the embodiment of the present application, without affecting the safety of the battery, sets multiple fast charging modules and switching devices corresponding to each fast charging module in the charging circuit, and by adjusting the state of each switching device during the fast charging stage of charging the terminal device, each battery can be fast charged separately through the fast charging module, so that a larger current can be used to charge the battery during the fast charging stage, thereby reducing the time spent on charging the terminal device and improving the charging efficiency of the terminal device.
  • FIG10 is a schematic flow chart of a charging method provided in an embodiment of the present application.
  • the method can be applied to the charging circuit of the above-mentioned terminal device. Referring to FIG10 , the method includes:
  • Step 1001 Obtain a first voltage across two terminals of a first battery and a second voltage across two terminals of a second battery.
  • the first battery and the second battery can both be batteries included in the battery pack in the terminal device, as shown in Figure 3, Figure 6, Figure 7 or Figure 8, the first battery corresponds to the first fast charging module and the first detection module respectively, and the second battery corresponds to the second fast charging module and the second detection module respectively.
  • the adapter can provide the terminal device with a voltage and current for charging.
  • the terminal device can adjust the voltage and current output by the adapter through a pre-set charging circuit so that the adjusted voltage and current meet the voltage and current required by the terminal device, thereby charging the terminal device.
  • the terminal device can detect the voltage across each battery through a pre-set detection module corresponding to each battery to obtain a detection result, so that the corresponding power of each battery can be determined according to the detection result, so that in the subsequent steps, the terminal device can charge each battery separately by fast charging according to the corresponding power of each battery.
  • the first detection module shown in FIG. 3, FIG. 6, FIG. 7 or FIG. 8 can start to detect the voltage across the first battery and transmit the detection result to the control module in the charging circuit.
  • the control module can receive the detection result sent by the first detection module, and determine the first voltage across the first battery according to the detection result, thereby determining the current power of the first battery, so that in subsequent steps, the terminal device can determine whether the first battery can be quickly charged according to the power of the first battery.
  • the second detection module can also detect the second voltage at both ends of the second battery in a manner similar to the first detection module mentioned above, and the charging circuit can also determine the second voltage at both ends of the second battery based on the detection result transmitted by the second detection module, thereby determining the power of the second battery.
  • first detection module and the second detection module can detect the first voltage and the second voltage in real time.
  • the first voltage and the second voltage may be collected, or the first voltage and the second voltage may be collected periodically.
  • the embodiment of the present application does not specifically limit the manner of obtaining the first voltage and the second voltage.
  • Step 1002 According to the first voltage threshold, in combination with the first voltage and the second voltage, adjust the state of the first switch device or the second switch device.
  • the first voltage threshold is a preset parameter used to determine whether the battery can be charged by high current, that is, whether the battery can be charged by fast charging. When the voltage across any battery is greater than the first voltage threshold, it means that the battery can be charged by fast charging with high current.
  • the terminal device can determine the first voltage and the second voltage based on the detection results through the control module. Afterwards, the control module can compare the two detected voltages with the preset first voltage threshold to obtain a comparison result.
  • the comparison result indicates that both the first voltage and the second voltage are greater than the first voltage threshold, it means that the first battery and the second battery do not need to continue to be charged with a small current, but can be charged with a large current to increase the charging speed of the terminal device.
  • the terminal device can send instructions to the first switch device or the second switch device through the control module, so that the first switch device or the second switch device switches from a closed state to an open state, thereby adjusting the circuit structure of the charging circuit to obtain a charging circuit as shown in Figure 4 or 5, in which the first battery is separately connected to the first fast charging module, and the second battery is separately connected to the second fast charging module, so that in subsequent steps, the first battery and the second battery can be separately charged with high current through the corresponding fast charging modules.
  • Step 1003 Charge the first battery and the second battery separately.
  • the terminal device can adopt a fast charging method, that is, a large current charging method, to quickly charge the first battery and the second battery respectively.
  • the terminal device can send an instruction to the charging module through the control module, instructing the charging module to stop charging the first battery and the second battery, and power the terminal device based on the power provided by the first battery and the second battery through the charging module.
  • the terminal device can also send instructions to the first fast charging module and the second fast charging module through the control module, instructing the switching components in the first fast charging module and the second fast charging module to turn on, so that the first fast charging module and the second fast charging module start to output current, so that the first battery and the second battery can be charged separately through the first fast charging module and the second fast charging module.
  • Step 1004 adjust the first voltage and the second voltage according to the second voltage threshold.
  • the second voltage threshold is a preset voltage parameter used to determine whether the first voltage and the second voltage are balanced. For example, if the voltage difference between the first voltage and the second voltage is greater than the second voltage threshold, it means that the voltage difference between the first battery and the second battery is large, and the first voltage and the second voltage need to be adjusted to ensure the balance between the two.
  • the terminal device can continue to detect the first voltage and the second voltage, and can adjust the two voltages in real time so that the voltage balance can be maintained between the first battery and the second battery.
  • the terminal device can continue to detect the first voltage and the second voltage through the first detection module and the second detection module.
  • the terminal device can calculate according to the detection result obtained by the control module, that is, calculate according to the first voltage and the second voltage to obtain the voltage difference between the two. Afterwards, the control module can compare the calculated voltage difference with the preset second voltage threshold to obtain the magnitude relationship between the voltage difference and the second voltage threshold.
  • the control module does not need to adjust the voltage across the first battery and the voltage across the second battery. Accordingly, the control module does not need to adjust the voltage and current output by the first fast charging module and the second fast charging module.
  • the control module needs to adjust the first voltage and the second voltage so that the calculated voltage difference is less than or equal to the second voltage threshold.
  • the control module can increase the voltage and current output by a certain fast charging module, or reduce the voltage and current output by a certain fast charging module. It can also simultaneously control one fast charging module to increase the output voltage and current, and control another fast charging module to reduce the output voltage and current. In addition, it can also send instructions to the adapter to instruct the adapter to adjust the output voltage and current through the sent instructions, so as to cooperate with each fast charging module to achieve the adjustment of the first voltage and the second voltage.
  • the embodiment of the present application does not limit the way in which the control module adjusts the first voltage and the second voltage.
  • the first voltage is higher than the second voltage, and the voltage difference between the two is greater than the second voltage threshold.
  • the process of adjusting each fast charging module is explained below.
  • the control module can send instructions to the first fast charging module to control the first fast charging module to reduce the output voltage and current, thereby charging the first battery with a smaller current to reduce the rate at which the first voltage gradually increases, so that after a period of time, the first voltage and the second voltage can be balanced.
  • control module can send instructions to the second fast charging module to control the second fast charging module to increase the output voltage and current, thereby charging the second battery with a larger current, thereby quickly increasing the second voltage, and thereby maintaining a balance between the first voltage and the second voltage.
  • control module can send instructions to the first fast charging module and the second fast charging module at the same time, so that the first fast charging module reduces the output voltage and current and the second fast charging module increases the low output voltage and current, thereby further accelerating the realization of voltage balance between the first voltage and the second voltage.
  • control module may also send a communication instruction to the adapter through the terminal device, and the communication instruction is used to instruct the adapter to adjust the output voltage and current.
  • the adapter can adjust the output voltage and current according to the communication instruction.
  • the adapter adjusts the output voltage and current, the voltage and current input to the first fast charging module and the second fast charging module also change accordingly, and the current output by the first fast charging module and the second fast charging module also changes, thereby achieving voltage balance between the first voltage and the second voltage.
  • the control module can again send instructions to the first fast charging module and/or the second fast charging module, so that the first fast charging module and/or the second fast charging module can restore the voltage and current output by the first fast charging module and/or the second fast charging module according to the received instructions.
  • Step 1005 Charge the first battery and the second battery in a constant voltage charging manner according to the third voltage threshold in combination with the first voltage and the second voltage.
  • the third voltage threshold is a preset voltage parameter used to determine whether the battery needs to be charged in constant voltage mode. For example, when the battery voltage is greater than or equal to the third voltage threshold, the terminal device can charge the battery in constant voltage mode, that is, the terminal device controls the module so that the fast charging module maintains the output voltage unchanged to output current to charge the battery.
  • the control module of the terminal device can not only determine whether the voltage between the first battery and the second battery is balanced through the first detection module and the second detection module, but also determine whether the first battery and the second battery need to be charged in a constant voltage mode through the first detection module and the second detection module.
  • step 1005 is similar to the process of step 1001 to step 1002, that is, the control module first obtains the first voltage and the second voltage through the first detection module and the second detection module, and then compares the obtained first voltage and the second voltage with the third voltage threshold. When the first voltage and the second voltage both reach the third voltage threshold, the control module can control the first fast charging module and the second fast charging module to charge the first battery and the second battery respectively by constant voltage charging.
  • Step 1006 According to the current threshold, in combination with the first voltage and the second voltage, and the first charging current input to the first battery and the second charging current input to the second battery, the state of the first switch device or the second switch device is adjusted again.
  • the current threshold is a preset current parameter used to determine whether the constant voltage charging mode needs to be terminated, that is, used to determine whether each battery of the battery pack can be charged through the charging module.
  • the first charging current input to the first battery and the second charging current input to the second battery will gradually decrease as the voltage across the batteries increases.
  • the charging requirements of the first battery and the second battery can be met by the charging module, without the need to charge the first battery and the second battery separately through the fast charging module.
  • the terminal device can adjust the first switching device or the second switching device through the control module to obtain a charging circuit as shown in Figure 3, Figure 6, Figure 7 or Figure 8, so that the switching device in the open state of the first switching device and the second switching device is switched to a closed state, so that in subsequent steps, the first battery and the second battery can be charged together through the charging module.
  • the control module of the terminal device can obtain the first charging current input to the first battery and the second charging current input to the second battery, and calculate based on the first charging current and the second charging current to obtain the sum of the two, which is the total charging current.
  • control module can compare the total charging current with the preset current threshold to obtain the magnitude relationship between the two. If the total charging current is greater than the current threshold, it means that the charging module cannot provide a charging current that matches the total charging current, and you can continue The first battery and the second battery are charged separately by the first fast charging module and the second fast charging module respectively.
  • the charging module can independently provide a charging current that matches the total charging current.
  • the control module can send an instruction to the switch device in the first switching device and the second switching device that is in the disconnected state, instructing the switch device to switch from the disconnected state to the closed state, thereby adjusting the circuit structure of the charging circuit so that the first battery is connected in parallel with the second battery and then connected in series with the charging module.
  • the control module can feedback the magnitude of the currently output charging current to the control module through each fast charging module, and can also feedback the magnitude of the charging current input to each battery to the control module through each detection module.
  • the embodiment of the present application does not specifically limit the way in which the control module obtains the charging current.
  • Step 1007 Charge the first battery and the second battery through the charging module until charging is completed.
  • the control module of the terminal device can send instructions to the first fast charging module, the second fast charging module and the charging module to control the first fast charging module and the second fast charging module to stop output, and control the charging module to charge the first battery and the second battery.
  • the terminal device can first send instructions to the first fast charging module, the second fast charging module and the charging module respectively, so that the switch components in the first fast charging module and the second fast charging module can be turned off according to the instructions, thereby controlling the first fast charging module and the second fast charging module to stop charging the first battery and the second battery.
  • the charging module can control the switch components in the charging module to turn on according to the received instructions, so that the first battery and the second battery can be charged at the same time through the charging module until the first battery and the second battery are fully charged.
  • the terminal device in the process of charging the first battery and the second battery through the charging module, the terminal device can be powered by the charging module.
  • the control module adjusts the states of the first switching device and the second switching device according to the first voltage of the first battery and the second voltage of the second battery, so that the circuit structure of the charging circuit changes, and the first battery and the second battery can be fast charged separately through the first fast charging module and the second fast charging module, so that a larger current can be used to charge the battery in the fast charging stage, thereby reducing the time spent on charging the terminal device and improving the charging efficiency of the terminal device.
  • the control module can adjust the voltage and current output by the first fast charging module and/or the second fast charging module in real time according to the first voltage and the second voltage, so as to timely maintain the voltage balance between the first voltage and the second voltage, and avoid the situation where one battery discharges to another battery when the first battery and the second battery are charged again through the charging module, thereby improving the charging safety of the terminal device.
  • the terminal device can charge the first battery and the second battery again through the charging module after the first charging current and the second charging current are reduced to a certain level, so that the first battery and the second battery in parallel can be charged at the same time through the charging module, which can reduce the power consumption of the terminal device for charging.
  • Figure 11 is a structural diagram of a terminal device provided in the embodiment of the present application.
  • the terminal device may include a processor 1110, an external memory interface 1120, an internal memory 1121, a universal serial bus (USB) interface 1130, a charging management module 1140, a power management module 1141, a battery 1142, an antenna 1, an antenna 2, a mobile communication module 1150, a wireless communication module 1160, an audio module 1170, a speaker 1170A, a receiver 1170B, a microphone 1170C, an earphone interface 1170D, a sensor module 1180, a button 1190, a motor 1191, an indicator 1192, a camera 1193, a display screen 1194, and a subscriber identification module (SIM) card interface 1195, etc.
  • SIM subscriber identification module
  • the sensor module 1180 may include a pressure sensor 1180A, a gyroscope sensor 1180B, an air pressure sensor 1180C, a magnetic sensor 1180D, an acceleration sensor 1180E, a distance sensor 1180F, a proximity light sensor 1180G, a fingerprint sensor 1180H, a temperature sensor 1180J, a touch sensor 1180K, an ambient light sensor 1180L, a bone conduction sensor 1180M, and the like.
  • the charging management module 1140 can be the charging circuit shown in Figures 3 to 9 above
  • the power management module 1141 can be a control module in the charging circuit
  • the battery 1142 can be the battery pack shown in Figures 3 to 9 above
  • the battery pack can include a first battery and a second battery. The following takes the charging management module 1140, the power management module 1141 and the battery 1142 as an example to continue to introduce the charging circuit provided in the embodiment of the present application.
  • the structure illustrated in the embodiment of the present invention does not constitute a specific limitation on the terminal device.
  • the terminal device may include more or fewer components than shown in the figure, or combine certain components, or split certain components, or arrange the components differently.
  • the components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.
  • the processor 1110 may include one or more processing units, for example, the processor 1110 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), a controller, a memory, a video codec, a digital signal processor (digital signal processor, DSP), a baseband processor, and/or a neural-network processing unit (neural-network processing unit, NPU), etc.
  • different processing units may be independent devices or integrated in one or more processors.
  • the controller can be the nerve center and command center of the terminal device.
  • the controller can generate operation control signals according to the instruction operation code and timing signal to complete the control of fetching and executing instructions.
  • the processor 1110 may also be provided with a memory for storing instructions and data.
  • the memory in the processor 1110 is a cache memory.
  • the memory may store instructions or data that the processor 1110 has just used or cyclically used. If the processor 1110 needs to use the instruction or data again, it may be directly called from the memory. This avoids repeated access, reduces the waiting time of the processor 1110, and thus improves the efficiency of the system.
  • the processor 1110 may include one or more interfaces.
  • the interface may include an inter-integrated circuit (I2C) interface, an inter-integrated circuit sound (I2S) interface, a pulse code modulation (PCM) interface, a universal asynchronous receiver/transmitter (UART) interface, a mobile industry processor interface (MIPI), a general-purpose input/output (GPIO) interface, a subscriber identity module (SIM) interface, and/or a universal serial bus (USB) interface, etc.
  • I2C inter-integrated circuit
  • I2S inter-integrated circuit sound
  • PCM pulse code modulation
  • UART universal asynchronous receiver/transmitter
  • MIPI mobile industry processor interface
  • GPIO general-purpose input/output
  • SIM subscriber identity module
  • USB universal serial bus
  • the I2C interface is a bidirectional synchronous serial bus, including a serial data line (SDA) and a serial clock line (SCL).
  • the processor 1110 may include multiple groups of I2C buses.
  • the processor 1110 may be coupled to the touch sensor 1180K, the charger, the flash, the camera 1193, etc. through different I2C bus interfaces.
  • the processor 1110 may be coupled to the touch sensor 1180K through the I2C interface, so that the processor 1110 communicates with the touch sensor 1180K through the I2C bus interface to realize the touch function of the terminal device.
  • the I2S interface can be used for audio communication.
  • the processor 1110 can include multiple groups of I2S buses.
  • the processor 1110 can be coupled to the audio module 1170 via the I2S bus to achieve communication between the processor 1110 and the audio module 1170.
  • the audio module 1170 can transmit an audio signal to the wireless communication module 1160 via the I2S interface to achieve the function of answering a call through a Bluetooth headset.
  • the PCM interface can also be used for audio communication, sampling, quantizing and encoding analog signals.
  • the audio module 1170 and the wireless communication module 1160 can be coupled via a PCM bus interface.
  • the audio module 1170 can also transmit audio signals to the wireless communication module 1160 via the PCM interface to realize the function of answering calls via a Bluetooth headset. Both the I2S interface and the PCM interface can be used for audio communication.
  • the UART interface is a universal serial data bus for asynchronous communication.
  • the bus can be a bidirectional communication bus. It converts the data to be transmitted between serial communication and parallel communication.
  • the UART interface is generally used to connect the processor 1110 and the wireless communication module 1160.
  • the processor 1110 communicates with the Bluetooth module in the wireless communication module 1160 through the UART interface to implement the Bluetooth function.
  • the audio module 1170 can transmit an audio signal to the wireless communication module 1160 through the UART interface to implement the function of playing music through a Bluetooth headset.
  • the MIPI interface can be used to connect the processor 1110 with peripheral devices such as the display screen 1194 and the camera 1193.
  • the MIPI interface includes a camera serial interface (CSI), a display serial interface (DSI), etc.
  • the processor 1110 and the camera 1193 communicate via the CSI interface to implement the shooting function of the terminal device.
  • the processor 1110 and the display screen 1194 communicate via the DSI interface to implement the display function of the terminal device.
  • the GPIO interface can be configured by software.
  • the GPIO interface can be configured as a control signal or as a data signal.
  • the GPIO interface can be used to connect the processor 1110 with the camera 1193, the display 1194, the wireless communication module 1160, the audio module 1170, the sensor module 1180, etc.
  • the GPIO interface can also be configured as an I2C interface, an I2S interface, a UART interface, a MIPI interface, etc.
  • the USB interface 1130 is an interface that complies with USB standard specifications, and may be a Mini USB interface, a Micro USB interface, a USB Type C interface, etc.
  • the USB interface 1130 may be used to connect a charger to charge the terminal device, or may be used to connect the terminal device to peripheral devices. It can also be used to connect headphones and play audio through them. This interface can also be used to connect other terminal devices, such as AR devices.
  • the interface connection relationship between the modules illustrated in the embodiment of the present invention is only a schematic illustration and does not constitute a structural limitation on the terminal device.
  • the terminal device may also adopt different interface connection methods in the above embodiments, or a combination of multiple interface connection methods.
  • the charging management module 1140 is used to receive charging input from a charger.
  • the charger may be a wireless charger or a wired charger.
  • the charging management module 1140 may receive charging input from a wired charger through the USB interface 1130.
  • the charging management module 1140 may receive wireless charging input through a wireless charging coil of a terminal device. While the charging management module 1140 is charging the battery 1142, it may also power the terminal device through the power management module 1141.
  • the power management module 1141 is used to connect the battery 1142, the charging management module 1140 and the processor 1110.
  • the power management module 1141 receives input from the battery 1142 and/or the charging management module 1140, and supplies power to the processor 1110, the internal memory 1121, the external memory, the display screen 1194, the camera 1193, and the wireless communication module 1160.
  • the power management module 1141 can also be used to monitor parameters such as battery capacity, battery cycle number, battery health status (leakage, impedance), etc.
  • the power management module 1141 can also be set in the processor 1110.
  • the power management module 1141 and the charging management module 1140 can also be set in the same device.
  • the internal memory 1121 can be used to store computer executable program codes, which include instructions.
  • the processor 1110 executes various functional applications and data processing of the terminal device by running the instructions stored in the internal memory 1121.
  • the internal memory 1121 may include a program storage area and a data storage area.
  • the program storage area may store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.
  • the data storage area may store data created during the use of the terminal device (such as audio data, a phone book, etc.), etc.
  • the internal memory 1121 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, a universal flash storage (UFS), etc.
  • UFS universal flash storage
  • the technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration.
  • the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above.
  • the functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units.
  • the disclosed devices and methods can be implemented in other ways.
  • the system embodiments described above are merely schematic.
  • the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.
  • Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may be a separate unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional unit.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
  • the present application implements all or part of the processes in the above-mentioned embodiment method, which can be completed by instructing the relevant hardware through a computer program.
  • the computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor.
  • the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form.
  • the computer-readable medium may at least include: any entity or device that can carry the computer program code to the terminal device or the control module of the terminal device, recording medium, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium.
  • ROM read-only memory
  • RAM random access memory
  • electric carrier signal telecommunication signal and software distribution medium.
  • USB flash drive mobile hard disk, disk or optical disk.
  • computer-readable media cannot be electric carrier signals and telecommunication signals.

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Abstract

The present application is applicable to the technical field of terminals. Provided are a charging circuit, a charging method, a charging system, a storage medium and a chip system. The charging circuit comprises: a control module, a charging module, a first fast-charging module, a second fast-charging module, a first detection module, a second detection module and a first switch device, wherein the first fast-charging module and the first detection module are both connected to a first battery in a battery pack, and the first detection module is further connected to the control module; the second fast-charging module and the second detection module are both connected to a second battery in the battery pack, and the second detection module is further connected to the control module; and the first switch device is connected in series between the charging module and the first battery, and each battery can be charged by means of the fast-charging modules by adjusting the state of the first switch device, such that the battery can be charged by using a larger current, the time spent charging a terminal device is shortened, and thus the charging efficiency of the terminal device can be improved.

Description

充电电路、充电方法、充电***、存储介质及芯片***Charging circuit, charging method, charging system, storage medium and chip system
本申请要求于2022年10月31日提交国家知识产权局、申请号为202211351542.4、申请名称为“充电电路、充电方法、充电***、存储介质及芯片***”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on October 31, 2022, with application number 202211351542.4 and application name “Charging circuit, charging method, charging system, storage medium and chip system”, the entire contents of which are incorporated by reference in this application.
技术领域Technical Field
本申请涉及终端设备技术领域，尤其涉及一种充电电路、充电方法、充电***、存储介质及芯片***。The present application relates to the technical field of terminal equipment, and in particular to a charging circuit, a charging method, a charging system, a storage medium and a chip system.
背景技术Background technique
随着终端设备的不断发展，终端设备的电池容量也不断增加，以提高终端设备的续航能力。例如，终端设备可以设置并联连接的多个电池或多个电芯，以增加电池容量。As terminal devices continue to develop, the battery capacity of terminal devices is also increasing to improve the endurance of terminal devices. For example, the terminal device can be provided with multiple batteries or multiple cells connected in parallel to increase the battery capacity.
由于多个电池或多个电芯并联连接，终端设备需要采用降额充电的方式进行充电。也即是，终端设备可以根据电池或电芯的最大充电电流，调整对每个电池或每个电芯进行充电的电流，使得输入每个电池或每个电芯的电流均小于电池或电芯的最大充电电流(如按照最大充电电流的80％进行充电)，从而可以防止快速充电造成电池膨胀而引起安全隐患。Since multiple batteries or multiple cells are connected in parallel, the terminal device needs to be charged in a derating manner. That is, the terminal device can adjust the charging current of each battery or each cell according to the maximum charging current of the battery or cell, so that the current input to each battery or each cell is less than the maximum charging current of the battery or cell (such as charging at 80% of the maximum charging current), thereby preventing the battery from swelling due to fast charging and causing safety hazards.
但是，终端设备通过降低充电电流的方式进行充电，需要花费更多的时间，造成充电效率较低的问题。However, it takes more time for the terminal device to charge by reducing the charging current, resulting in low charging efficiency.
发明内容Summary of the invention
本申请提供一种充电电路、充电方法、充电***、存储介质及芯片***，解决了现有技术中终端设备通过降低充电电流的方式进行充电，充电效率较低的问题。The present application provides a charging circuit, a charging method, a charging system, a storage medium and a chip system, which solve the problem in the prior art that the terminal device is charged by reducing the charging current, resulting in low charging efficiency.
为达到上述目的，本申请采用如下技术方案：In order to achieve the above objectives, this application adopts the following technical solutions:
第一方面，提供一种充电电路，所述充电电路包括：控制模块、充电模块、第一快充模块、第二快充模块、第一检测模块、第二检测模块和第一开关器件；In a first aspect, a charging circuit is provided, the charging circuit comprising: a control module, a charging module, a first fast charging module, a second fast charging module, a first detection module, a second detection module and a first switch device;
所述第一快充模块和所述第一检测模块均与电池组中的第一电池连接，所述第一检测模块还与所述控制模块相连接；The first fast charging module and the first detection module are both connected to the first battery in the battery pack, and the first detection module is also connected to the control module;
所述第二快充模块和所述第二检测模块均与所述电池组中的第二电池连接，所述第二检测模块还与所述控制模块相连接；The second fast charging module and the second detection module are both connected to the second battery in the battery pack, and the second detection module is also connected to the control module;
所述第一开关器件连接在所述充电模块和所述第一电池之间，所述充电模块与所述第二电池连接；The first switch device is connected between the charging module and the first battery, and the charging module is connected to the second battery;
所述控制模块还分别与所述充电模块、所述第一快充模块、所述第二快充模块和所述第一开关器件连接，用于根据所述第一检测模块检测的所述第一电池两端的电压和所述第二检测模块检测的所述第二电池两端的电压，控制所述充电模块、所述第一快充模块、所述第二快充模块和所述第一开关器件的导通或关断。The control module is also respectively connected to the charging module, the first fast charging module, the second fast charging module and the first switching device, and is used to control the on or off of the charging module, the first fast charging module, the second fast charging module and the first switching device according to the voltage across the first battery detected by the first detection module and the voltage across the second battery detected by the second detection module.
本申请实施例提供的充电电路，在不影响电池安全的基础上，在充电电路中设置多个快充模块和每个快充模块对应的开关器件，通过在终端设备进行充电的快速充电阶段，通过调整各个开关器件的状态，使得各个电池分别可以通过快充模块单独进行快速充电，从而可以在快充阶段采用更大的电流对电池进行充电，减小终端设备充电所花费的时间，可以提高终端设备的充电效率。The charging circuit provided in the embodiment of the present application, without affecting the safety of the battery, sets multiple fast charging modules and switching devices corresponding to each fast charging module in the charging circuit, and by adjusting the state of each switching device during the fast charging stage of charging the terminal device, each battery can be fast charged separately through the fast charging module, so that a larger current can be used to charge the battery during the fast charging stage, thereby reducing the time spent on charging the terminal device and improving the charging efficiency of the terminal device.
在第一方面的第一种可能的实现方式中，所述充电电路还包括：第二开关器件；In a first possible implementation manner of the first aspect, the charging circuit further includes: a second switching device;
所述第二开关器件连接在所述充电模块与所述第二电池之间。The second switch device is connected between the charging module and the second battery.
通过设置第二开关器件，可以对第一开关器件或第二开关器件的状态进行调整，从而可以提高终端设备进行充电的灵活性和可靠性。By setting the second switching device, the state of the first switching device or the second switching device can be adjusted, thereby improving the flexibility and reliability of charging of the terminal device.
基于第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，所述第一开关器件集成在所述充电模块内。Based on the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the first switching device is integrated in the charging module.
基于第一方面的第一种可能的实现方式，在第一方面的第三种可能的实现方式中，所述第一开关器件和所述第二开关器件均集成在所述充电模块内。Based on the first possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the first switching device and the second switching device are both integrated in the charging module.
通过在充电模块内集成各个开关器件，无需在充电电路中额外设置开关器件，从而可以减小充电电路的面积，可以提高充电电路的灵活性。By integrating various switch devices in the charging module, there is no need to additionally provide switch devices in the charging circuit, thereby reducing the area of the charging circuit and improving the flexibility of the charging circuit.
基于第一方面的第二种或第三种可能的实现方式，在第一方面的第四种可能的实现方式中，所述第一检测模块和所述第二检测模块均集成在所述充电模块中； Based on the second or third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the first detection module and the second detection module are both integrated in the charging module;
所述第一检测模块，用于向所述控制模块发送检测的所述第一电池两端的电压；The first detection module is used to send the detected voltage across the first battery to the control module;
所述第二检测模块，用于向所述控制模块发送检测的所述第二电池两端的电压。The second detection module is used to send the detected voltage across the second battery to the control module.
通过在充电模块内集成第一检测模块和第二检测模块，无需在充电电路中额外设置检测模块，从而可以减小充电电路的面积，可以提高充电电路的灵活性。By integrating the first detection module and the second detection module in the charging module, there is no need to additionally provide a detection module in the charging circuit, thereby reducing the area of the charging circuit and improving the flexibility of the charging circuit.
基于第一方面的除第四种之外的其他任意一种可能的实现方式，在第一方面的第五种可能的实现方式中，所述第一检测模块集成在所述第一快充模块内，所述第二检测模块集成在所述第二快充模块内。Based on any other possible implementation manner of the first aspect except the fourth, in a fifth possible implementation manner of the first aspect, the first detection module is integrated in the first fast charging module, and the second detection module is integrated in the second fast charging module.
通过在第一快充模块内集成第一检测模块，并在第二快充模块内集成第二检测模块，无需在充电电路中额外设置检测模块，从而可以减小充电电路的面积，可以提高充电电路的灵活性。By integrating the first detection module in the first fast charging module and integrating the second detection module in the second fast charging module, there is no need to additionally set up a detection module in the charging circuit, thereby reducing the area of the charging circuit and improving the flexibility of the charging circuit.
基于第一方面的任意一种可能的实现方式，在第一方面的第六种可能的实现方式中，所述充电电路还包括：第三快充模块、第三检测模块和第三开关器件；Based on any possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, the charging circuit further includes: a third fast charging module, a third detection module, and a third switching device;
所述第三快充模块和所述第三检测模块均与所述电池组中的第三电池连接，所述第三检测模块还与所述控制模块相连接；The third fast charging module and the third detection module are both connected to the third battery in the battery pack, and the third detection module is also connected to the control module;
所述第三开关器件连接在所述充电模块和所述第三电池之间。The third switch device is connected between the charging module and the third battery.
通过设置第三快充模块、第三检测模块和第三开关器件，充电电路可以在与第一电池和第二电池相连接的基础上，继续与第三电池连接，从而可以提高充电电路的灵活性和扩展性。By providing a third fast charging module, a third detection module and a third switching device, the charging circuit can continue to be connected to the third battery on the basis of being connected to the first battery and the second battery, thereby improving the flexibility and expansibility of the charging circuit.
第二方面，提供一种充电方法，应用于充电电路，所述充电电路包括：充电模块、第一快充模块、第二快充模块和第一开关器件，所述充电模块用于对电池组中的第一电池和第二电池充电，所述第一开关器件串联连接在所述充电模块和所述第一电池之间，所述第一快充模块与所述第一电池连接，所述第二快充模块与所述第二电池连接；In a second aspect, a charging method is provided, which is applied to a charging circuit, wherein the charging circuit includes: a charging module, a first fast charging module, a second fast charging module, and a first switching device, wherein the charging module is used to charge a first battery and a second battery in a battery pack, wherein the first switching device is connected in series between the charging module and the first battery, the first fast charging module is connected to the first battery, and the second fast charging module is connected to the second battery;
所述充电方法包括：The charging method comprises:
获取所述第一电池两端的第一电压和所述第二电池两端的第二电压；Acquire a first voltage across the first battery and a second voltage across the second battery;
根据所述第一电压和所述第二电压，调整所述第一开关器件的状态，使得所述充电电路的电路结构发生变化，并通过所述第一快充模块为所述第一电池充电、通过所述第二快充模块为所述第二电池充电。According to the first voltage and the second voltage, the state of the first switching device is adjusted so that the circuit structure of the charging circuit changes, and the first battery is charged through the first fast charging module and the second battery is charged through the second fast charging module.
在第二方面的第一种可能的实现方式中，所述根据所述第一电压和所述第二电压，调整所述第一开关器件的状态，包括：In a first possible implementation manner of the second aspect, adjusting the state of the first switching device according to the first voltage and the second voltage includes:
将所述第一电压和所述第二电压，分别与预先设置的第一电压阈值进行比较；Comparing the first voltage and the second voltage with a preset first voltage threshold respectively;
若所述第一电压和所述第二电压均大于所述第一电压阈值，则调整所述第一开关器件的状态；If the first voltage and the second voltage are both greater than the first voltage threshold, adjusting the state of the first switch device;
若所述第一电压和所述第二电压中的至少一个小于或等于所述第一电压阈值，则保持所述第一开关器件的状态不变。If at least one of the first voltage and the second voltage is less than or equal to the first voltage threshold, the state of the first switching device is maintained unchanged.
在第二方面的第二种可能的实现方式中，在所述通过所述第一快充模块为所述第一电池充电、通过所述第二快充模块为所述第二电池充电之后，所述方法还包括：In a second possible implementation manner of the second aspect, after charging the first battery through the first fast charging module and charging the second battery through the second fast charging module, the method further includes:
获取所述第一电池两端的所述第一电压和所述第二电池两端的所述第二电压，得到所述第一电压与所述第二电压之间的电压差值；Acquire the first voltage across the first battery and the second voltage across the second battery to obtain a voltage difference between the first voltage and the second voltage;
根据所述电压差值和预先设置的第二电压阈值之间的大小关系，对所述第一快充模块和/或所述第二快充模块输出的电流进行调整。According to the magnitude relationship between the voltage difference and a preset second voltage threshold, the current output by the first fast charging module and/or the second fast charging module is adjusted.
基于第二方面的第二种可能的实现方式，在第二方面的第三种可能的实现方式中，所述根据所述电压差值和预先设置的第二电压阈值之间的大小关系，对所述第一快充模块和/或所述第二快充模块输出的电流进行调整，包括：Based on the second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, adjusting the current output by the first fast charging module and/or the second fast charging module according to the magnitude relationship between the voltage difference and a preset second voltage threshold includes:
若所述电压差值小于或等于所述第二电压阈值，则对所述第一快充模块和/或所述第二快充模块输出的电流保持不变；If the voltage difference is less than or equal to the second voltage threshold, the current output by the first fast charging module and/or the second fast charging module remains unchanged;
若所述电压差值大于所述第二电压阈值、且所述第一电压大于所述第二电压，则降低所述第一快充模块输出的电流，和/或，提高所述第二快充模块输出的电流；If the voltage difference is greater than the second voltage threshold and the first voltage is greater than the second voltage, reducing the current output by the first fast charging module and/or increasing the current output by the second fast charging module;
若所述电压差值大于所述第二电压阈值、且所述第一电压小于所述第二电压，则提高所述第一快充模块输出的电流，和/或，降低所述第二快充模块输出的电流；If the voltage difference is greater than the second voltage threshold and the first voltage is less than the second voltage, increasing the current output by the first fast charging module and/or reducing the current output by the second fast charging module;
其中，所述第一电压和所述第二电压之间的大小关系是在计算所述电压差值时确定的。The magnitude relationship between the first voltage and the second voltage is determined when calculating the voltage difference.
在第二方面的第四种可能的实现方式中，在所述通过所述第一快充模块为所述第一电池充电、通过所述第二快充模块为所述第二电池充电之后，所述方法还包括：In a fourth possible implementation manner of the second aspect, after charging the first battery through the first fast charging module and charging the second battery through the second fast charging module, the method further includes:
获取所述第一电池两端的所述第一电压和所述第二电池两端的所述第二电压，并将所述第一电压和所 述第二电压，分别与预先设置的第三电压阈值进行比较；Obtain the first voltage across the first battery and the second voltage across the second battery, and convert the first voltage and the The second voltage is compared with a preset third voltage threshold value respectively;
若所述第一电压和所述第二电压均大于或等于预先设置的第三电压阈值，则通过所述第一快充模块采用恒压充电的方式为所述第一电池充电，并通过所述第二快充模块采用恒压充电的方式为所述第二电池充电。If the first voltage and the second voltage are both greater than or equal to a preset third voltage threshold, the first battery is charged by the first fast charging module using a constant voltage charging method, and the second battery is charged by the second fast charging module using a constant voltage charging method.
基于第二方面的第四种可能的实现方式，在第二方面的第五种可能的实现方式中，所述通过所述第一快充模块采用恒压充电的方式为所述第一电池充电，并通过所述第二快充模块采用恒压充电的方式为所述第二电池充电之后，所述方法还包括：Based on the fourth possible implementation manner of the second aspect, in a fifth possible implementation manner of the second aspect, after the first battery is charged by the first fast charging module in a constant voltage charging manner, and the second battery is charged by the second fast charging module in a constant voltage charging manner, the method further includes:
获取所述第一电池对应的第一充电电流和所述第二电池对应的第二充电电流；Acquire a first charging current corresponding to the first battery and a second charging current corresponding to the second battery;
根据所述第一充电电流和所述第二充电电流，结合预先设置的电流阈值，再次对所述第一开关器件的状态进行调整，并通过所述充电模块为所述第一电池和所述第二电池同时充电，直至充电完毕。According to the first charging current and the second charging current, combined with a preset current threshold, the state of the first switching device is adjusted again, and the first battery and the second battery are charged simultaneously through the charging module until charging is completed.
基于第二方面的第五种可能的实现方式，在第二方面的第六种可能的实现方式中，所述根据所述第一充电电流和所述第二充电电流，结合预先设置的电流阈值，再次对所述第一开关器件的状态进行调整，包括：Based on the fifth possible implementation manner of the second aspect, in a sixth possible implementation manner of the second aspect, adjusting the state of the first switching device again according to the first charging current and the second charging current in combination with a preset current threshold includes:
根据所述第一充电电流和所述第二充电电流进行计算，得到总充电电流；Calculate the total charging current according to the first charging current and the second charging current;
比较所述总充电电流和所述电流阈值之间的大小关系；Comparing the total charging current with the current threshold;
若所述总充电电流大于所述电流阈值，则继续通过所述第一快充模块和所述第二快充模块，采用恒压充电的方式分别为所述第一电池和所述第二电池充电；If the total charging current is greater than the current threshold, the first battery and the second battery are charged respectively by the first fast charging module and the second fast charging module in a constant voltage charging manner;
若所述总充电电流小于或等于所述电流阈值，则再次对所述第一开关器件的状态进行调整。If the total charging current is less than or equal to the current threshold, the state of the first switching device is adjusted again.
第三方面，提供一种充电***，所述充电***包括：终端设备和适配器，所述终端设备包括如第一方面中任一项所述的充电电路；In a third aspect, a charging system is provided, the charging system comprising: a terminal device and an adapter, the terminal device comprising the charging circuit as described in any one of the first aspects;
所述适配器通过所述终端设备的充电端口，与所述终端设备的充电电路连接；The adapter is connected to the charging circuit of the terminal device through the charging port of the terminal device;
所述终端设备或所述充电电路采用如第二方面中任一项所述的充电方法，对所述终端设备的电池组进行充电。The terminal device or the charging circuit adopts the charging method described in any one of the second aspects to charge the battery pack of the terminal device.
第四方面，提供一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，所述计算机程序被处理器执行时实现如第二方面中任一项所述的充电方法。In a fourth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the charging method as described in any one of the second aspects is implemented.
第五方面，提供一种芯片***，所述芯片***包括存储器和处理器，所述处理器执行所述存储器中存储的计算机程序，以实现如第二方面中任一项所述的充电方法。In a fifth aspect, a chip system is provided, comprising a memory and a processor, wherein the processor executes a computer program stored in the memory to implement a charging method as described in any one of the second aspects.
可以理解的是，上述第二方面至第五方面的有益效果可以参见上述第一方面中的相关描述，在此不再赘述。It can be understood that the beneficial effects of the second to fifth aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1A为一种充电电路的结构示意图；FIG1A is a schematic diagram of the structure of a charging circuit;
图1B为另一种充电电路的结构示意图；FIG1B is a schematic diagram of the structure of another charging circuit;
图2为本申请实施例提供的一种基于充电电路所涉及的充电场景的场景示意图；FIG2 is a schematic diagram of a charging scenario based on a charging circuit according to an embodiment of the present application;
图3为本申请实施例提供的一种充电电路的电路拓扑图；FIG3 is a circuit topology diagram of a charging circuit provided in an embodiment of the present application;
图4为本申请实施例提供的另一种充电电路的电路拓扑图；FIG4 is a circuit topology diagram of another charging circuit provided in an embodiment of the present application;
图5为本申请实施例提供的又一种充电电路的电路拓扑图；FIG5 is a circuit topology diagram of another charging circuit provided in an embodiment of the present application;
图6为本申请实施例提供的又一种充电电路的电路拓扑图；FIG6 is a circuit topology diagram of another charging circuit provided in an embodiment of the present application;
图7为本申请实施例提供的又一种充电电路的电路拓扑图；FIG7 is a circuit topology diagram of another charging circuit provided in an embodiment of the present application;
图8为本申请实施例提供的又一种充电电路的电路拓扑图；FIG8 is a circuit topology diagram of another charging circuit provided in an embodiment of the present application;
图9为本申请实施例提供的又一种充电电路的电路拓扑图；FIG9 is a circuit topology diagram of another charging circuit provided in an embodiment of the present application;
图10为本申请实施例提供的一种充电方法的示意性流程图；FIG10 is a schematic flow chart of a charging method provided in an embodiment of the present application;
图11为本申请实施例提供的一种终端设备的结构示意图。FIG. 11 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application.
具体实施方式Detailed ways
以下描述中，为了说明而不是为了限定，提出了诸如特定***结构、技术之类的具体细节，以便透彻理解本申请实施例。然而，本领域的技术人员应当清楚，在没有这些具体细节的其它实施例中也可以实现本申请。在其它情况中，省略对众所周知的充电方法、电压电流调整方法、开关状态切换方法和终端设备的详细说明，以免不必要的细节妨碍本申请的描述。 In the following description, specific details such as specific system structures and technologies are provided for illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known charging methods, voltage and current adjustment methods, switch state switching methods, and terminal devices are omitted to avoid unnecessary details that hinder the description of the present application.
以下实施例中所使用的术语只是为了描述特定实施例的目的，而并非旨在作为对本申请的限制。如在本申请的说明书和所附权利要求书中所使用的那样，单数表达形式“一个”、“所述”、“上述”和“该”旨在也包括例如“一个或多个”这种表达形式，除非其上下文中明确地有相反指示。The terms used in the following embodiments are only for the purpose of describing specific embodiments and are not intended to be limiting of the present application. As used in the specification and appended claims of the present application, the singular expressions "a", "said", "above", and "the" are intended to also include expressions such as "one or more", unless there is a clear contrary indication in the context.
随着终端设备的不断发展，为了提高终端设备的续航能力，可以通过设置多个电池或多个电芯的方式，提高终端设备的电池容量。相应的，在增加电池容量的基础上，终端设备还可以采用快速充电的方式，对多个电池或多个电芯进行充电，以减少终端设备进行充电所花费的时间。With the continuous development of terminal devices, in order to improve the endurance of terminal devices, the battery capacity of terminal devices can be increased by setting multiple batteries or multiple cells. Accordingly, on the basis of increasing the battery capacity, the terminal device can also use a fast charging method to charge multiple batteries or multiple cells to reduce the time spent on charging the terminal device.
在进行快速充电的过程中，多个电池或多个电芯可以分别采用串联或并联的方式相连接，则终端设备也可以分别采用不同的方式，对采用不同连接方式的多个电池或多个电芯进行充电。During fast charging, multiple batteries or multiple cells can be connected in series or in parallel, and the terminal device can also use different methods to charge multiple batteries or multiple cells using different connection methods.
参见图1A，图1A为一种充电电路的结构示意图，如图1A所示，该充电电路包括：充电模块、电池1和电池2，其中充电模块、电池1和电池2依次串联连接。Referring to FIG. 1A , FIG. 1A is a schematic diagram of the structure of a charging circuit. As shown in FIG. 1A , the charging circuit comprises: a charging module, a battery 1 and a battery 2, wherein the charging module, the battery 1 and the battery 2 are connected in series in sequence.
相应的，在通过如图1A所示的充电电路进行充电的过程中，终端设备可以向电池1和电池2输入最大充电电流，对电池1和电池2进行充电，从而可以减少充电所花费的时间。其中，最大充电电流为电池1和电池2的最大充电电流。Accordingly, in the process of charging through the charging circuit shown in FIG1A , the terminal device can input the maximum charging current to battery 1 and battery 2 to charge battery 1 and battery 2, thereby reducing the time spent on charging. The maximum charging current is the maximum charging current of battery 1 and battery 2.
而且，当电池1和电池2串联连接时，由于电池1和电池2输出的电压较高，还需要设置降压模块对电池1和电池2输出的电压进行降压，再通过降压后电压为终端设备***中的各个模块供电，从而实现终端设备的正常运行。Moreover, when battery 1 and battery 2 are connected in series, since the voltages output by battery 1 and battery 2 are relatively high, a step-down module is required to step down the voltages output by battery 1 and battery 2, and then the stepped-down voltage is used to power various modules in the terminal device system, thereby achieving normal operation of the terminal device.
但是，降压模块在降压过程中会造成一定的能量损失，从而影响终端设备的续航。而且，基于电池输出的较高电压，需要提高终端设备中各个元器件的耐压性，导致终端设备的成本增加。However, the step-down module will cause a certain amount of energy loss during the step-down process, thus affecting the endurance of the terminal device. Moreover, based on the higher voltage output by the battery, it is necessary to improve the voltage resistance of each component in the terminal device, resulting in an increase in the cost of the terminal device.
基于此，参见图1B，图1B为另一种充电电路的结构示意图，如图1B所示，该充电电路包括：充电模块、电池1和电池2，其中电池1和电池2并联连接，充电模块与并联后的电池1和电池2串联连接。Based on this, refer to Figure 1B, which is a structural diagram of another charging circuit. As shown in Figure 1B, the charging circuit includes: a charging module, a battery 1 and a battery 2, wherein the battery 1 and the battery 2 are connected in parallel, and the charging module is connected in series with the parallel-connected battery 1 and the battery 2.
由于并联的电池1和电池2之间的充电链路阻抗无法做到完全一致，则分别输入电池1和电池2的电流大小可能会不一致，例如，输入电池1的电流大于电池1的最大充电电流，而输入电池2的电流小于电池2的最大充电电流。相应的，在对电池1和电池2进行多次快速充电后，某个电池长时间采用大于最大充电电流的充电电流进行充电，可能会造成该电池膨胀而引发安全问题。因此，需要采用降额充电的方式进行充电。Since the charging link impedance between the parallel-connected battery 1 and battery 2 cannot be completely consistent, the currents input to battery 1 and battery 2 may be inconsistent. For example, the current input to battery 1 is greater than the maximum charging current of battery 1, while the current input to battery 2 is less than the maximum charging current of battery 2. Accordingly, after multiple fast charging of battery 1 and battery 2, if a battery is charged with a charging current greater than the maximum charging current for a long time, it may cause the battery to swell and cause safety problems. Therefore, it is necessary to use a derating charging method for charging.
具体地，在充电过程中，终端设备可以先确定电池1和电池2的最大充电电流，再根据该最大充电电流调整充电模块输出的电流，从而同时对电池1和电池2进行降额充电。Specifically, during the charging process, the terminal device can first determine the maximum charging current of battery 1 and battery 2, and then adjust the current output by the charging module according to the maximum charging current, thereby simultaneously performing derating charging on battery 1 and battery 2.
例如，电池1和电池2的最大充电电流均为2安培(A)，降额按照最大充电电流的80％进行充电，则输入每个电池的电流即为1.6A。For example, the maximum charging current of battery 1 and battery 2 is both 2 amperes (A), and the battery is charged at 80% of the maximum charging current, so the current input to each battery is 1.6A.
尽管通过降额的方式可以减少电池膨胀而引发安全问题的概率，但是会增加终端设备充电所花费的时间，从而降低终端设备的充电效率。Although derating can reduce the probability of safety issues caused by battery expansion, it will increase the time spent charging the terminal device, thereby reducing the charging efficiency of the terminal device.
需要说明的是，为简便说明，上述仅以2个电池为例，对串联或并联的2个电池进行充电的电路结构进行说明。而在实际应用中，终端设备中可以设置其他数量的电池进行串联或并联，例如，终端设备中可以设置3个电池、5个电池或更多数量的电池，本申请实施例对终端设备中电池的数量不做具体限定。It should be noted that, for the sake of simplicity, the above only takes two batteries as an example to illustrate the circuit structure of charging two batteries connected in series or in parallel. In actual applications, other numbers of batteries can be set in series or in parallel in the terminal device. For example, three batteries, five batteries or more batteries can be set in the terminal device. The embodiment of the present application does not specifically limit the number of batteries in the terminal device.
因此，本申请实施例提出一种充电电路和充电方法，在不影响电池安全的基础上，在充电电路中设置多个快充模块和每个快充模块对应的开关器件，通过在终端设备进行充电的快速充电阶段，通过调整各个开关器件的状态，使得各个电池分别可以通过对应的快充模块单独进行快速充电，从而可以在快速充电阶段采用更大的电流对电池进行充电，减小终端设备充电所花费的时间，可以提高终端设备的充电效率。Therefore, the embodiments of the present application propose a charging circuit and a charging method. On the basis of not affecting the safety of the battery, multiple fast charging modules and switching devices corresponding to each fast charging module are arranged in the charging circuit. By adjusting the state of each switching device during the fast charging stage of charging the terminal device, each battery can be fast charged separately through the corresponding fast charging module, so that a larger current can be used to charge the battery during the fast charging stage, thereby reducing the time spent on charging the terminal device and improving the charging efficiency of the terminal device.
下述对本申请实施例所提供的一种充电电路和充电方法所涉及的充电场景进行介绍。参见图2，图2为本申请实施例提供的一种基于本申请实施例提供的充电电路所涉及的充电场景的场景示意图，该充电场景包括：终端设备210和适配器220，终端设备210可以通过预先设置的充电端口与适配器220连接。The following is an introduction to a charging scenario involved in a charging circuit and a charging method provided in an embodiment of the present application. Referring to FIG. 2 , FIG. 2 is a schematic diagram of a charging scenario involved in a charging circuit provided in an embodiment of the present application, the charging scenario including: a terminal device 210 and an adapter 220, the terminal device 210 can be connected to the adapter 220 through a pre-set charging port.
其中，终端设备210可以包括：充电电路2101和电池组2102，电池组2102中的多个电池均与充电电路2101连接。The terminal device 210 may include: a charging circuit 2101 and a battery pack 2102 , and a plurality of batteries in the battery pack 2102 are all connected to the charging circuit 2101 .
具体地，终端设备210在与适配器220连接后，适配器220可以通过预先设置的充电协议与终 端设备210进行数据交互，确定终端设备210所支持的充电方式。若终端设备210采用快速充电对应的充电协议与适配器220进行数据交互，则表示终端设备210支持快速充电，则适配器220可以采用快速充电的方式，对终端设备210进行充电。若终端设备210采用常规充电对应的充电协议与适配器220进行数据交互，则表示终端设备210不支持快速充电，则适配器220可以采用常规充电的方式，对终端设备210进行充电。Specifically, after the terminal device 210 is connected to the adapter 220, the adapter 220 can communicate with the terminal device 210 through a preset charging protocol. The terminal device 210 exchanges data with the adapter 220 to determine the charging method supported by the terminal device 210. If the terminal device 210 exchanges data with the adapter 220 using the charging protocol corresponding to fast charging, it means that the terminal device 210 supports fast charging, and the adapter 220 can charge the terminal device 210 using the fast charging method. If the terminal device 210 exchanges data with the adapter 220 using the charging protocol corresponding to conventional charging, it means that the terminal device 210 does not support fast charging, and the adapter 220 can charge the terminal device 210 using the conventional charging method.
其中，常规充电和快速充电均可以为终端设备的充电方式。常规充电时输入电池的电流小于快速充电时输入电池的电流。例如，常规充电时，适配器输入终端设备的充电电流为1A；而快速充电时，适配器输入终端设备的充电电流为2.4A，本申请实施例对常规充电和快速充电时适配器所输出的电流大小不做限定。Among them, both conventional charging and fast charging can be charging methods for terminal devices. The current input to the battery during conventional charging is less than the current input to the battery during fast charging. For example, during conventional charging, the charging current input to the terminal device by the adapter is 1A; while during fast charging, the charging current input to the terminal device by the adapter is 2.4A. The embodiment of the present application does not limit the current output by the adapter during conventional charging and fast charging.
下述以终端设备支持快速充电的方式为例进行说明。终端设备在采用快速充电的方式进行充电的过程中，终端设备可以经过涓流充电阶段、快速充电阶段和恒压充电阶段等多个充电阶段实现充电。The following is an example of a terminal device supporting fast charging. When the terminal device is charged in a fast charging manner, the terminal device can be charged through multiple charging stages such as a trickle charging stage, a fast charging stage, and a constant voltage charging stage.
其中，涓流充电阶段为防止对电池造成损伤，采用小电流进行充电的阶段；快速充电阶段(下述简称为快充阶段)为采用大电流进行充电，以减少充电时间的阶段；恒压充电阶段为电池具有一定电量后，采用输出电压保持不变，输出电流随电池电量增加而减少的阶段。Among them, the trickle charging stage is a stage in which a small current is used for charging to prevent damage to the battery; the fast charging stage (hereinafter referred to as the fast charging stage) is a stage in which a large current is used for charging to reduce the charging time; the constant voltage charging stage is a stage in which the output voltage remains unchanged after the battery has a certain amount of power, and the output current decreases as the battery power increases.
当然，终端设备在进行快速充电的过程中，也可以采用包括其他充电阶段的方式进行充电，本申请实施例快速充电所包括的各个充电阶段不做具体限定。Of course, during the fast charging process, the terminal device may also be charged in a manner including other charging stages, and the various charging stages included in the fast charging in the embodiment of the present application are not specifically limited.
相应的，在充电过程中，若终端设备210当前的电量较低，则适配器220可以先采用涓流充电的方式，通过充电电路2101中的充电模块对终端设备210进行小电流充电。当终端设备210的电池电量达到一定程度后，适配器220可以进入快充阶段进行充电，也即是大电流充电。Accordingly, during the charging process, if the current power level of the terminal device 210 is low, the adapter 220 can first use trickle charging to charge the terminal device 210 with a small current through the charging module in the charging circuit 2101. When the battery power of the terminal device 210 reaches a certain level, the adapter 220 can enter the fast charging stage for charging, that is, high current charging.
相应的，终端设备210在进入快充阶段时，可以先通过调整充电电路2101中的各个开关器件，使得电池组2102中的各个电池分别与充电电路2101中对应的各个快充模块单独连接，从而可以通过各个快充模块，单独对每个电池进行大电流充电，以减少终端设备充电所花费的时间。Accordingly, when the terminal device 210 enters the fast charging stage, it can first adjust the various switching devices in the charging circuit 2101 so that each battery in the battery pack 2102 is separately connected to the corresponding fast charging modules in the charging circuit 2101, so that each battery can be charged with a large current individually through each fast charging module, thereby reducing the time spent on charging the terminal device.
其中，开关器件可以为具有导通或关断功能的器件、电路或器件与电路的组合，例如，开关器件可以为三极管、金属氧化物半导体场效应晶体管(metal-oxide-semiconductor field-effect transistor，MOSFET)(下述简称为MOS管)或继电器，本申请实施例对开关器件不做具体限定。Among them, the switching device can be a device, circuit or a combination of a device and a circuit with a turn-on or turn-off function. For example, the switching device can be a triode, a metal-oxide-semiconductor field-effect transistor (MOSFET) (hereinafter referred to as MOS tube) or a relay. The embodiments of the present application do not specifically limit the switching device.
在快速充电一段时间后，终端设备的电池电量进一步提升，从而可以进入恒压充电阶段进行充电。相应的，适配器220可以继续通过各个快充模块可以保持输出的电压不变，采用恒压充电的方式进行充电。当输入各个电池的充电电流逐渐下降后，可以再次对各个开关器件进行调整，停止通过快充模块进行充电，而是通过充电电路2101中的充电模块对各个电池进行充电。当输入电池的电流小于某个阈值后，可以认为终端设备充电完毕。After a period of fast charging, the battery power of the terminal device is further improved, so that it can enter the constant voltage charging stage for charging. Correspondingly, the adapter 220 can continue to keep the output voltage unchanged through each fast charging module and charge by constant voltage charging. When the charging current input to each battery gradually decreases, each switching device can be adjusted again to stop charging through the fast charging module, and instead charge each battery through the charging module in the charging circuit 2101. When the current input to the battery is less than a certain threshold, it can be considered that the terminal device is fully charged.
需要说明的是，上述充电过程中，当终端设备210在通过充电电路2101的快充模块进行充电时，可以通过调整充电电路2101中的各个开关器件的状态，使得电池组2102的各个电池可以单独通过相对应的快充模块进行充电，从而可以按照电池的最大充电电流进行充电，减少终端设备充电所需的时间。It should be noted that during the above-mentioned charging process, when the terminal device 210 is charged through the fast charging module of the charging circuit 2101, the states of the various switching devices in the charging circuit 2101 can be adjusted so that each battery of the battery pack 2102 can be charged individually through the corresponding fast charging module, thereby being able to charge according to the maximum charging current of the battery, thereby reducing the time required for charging the terminal device.
而且，在实际应用中，充电电路可以包括多个快充模块，各个快充模块与电池组2102中的各个电池一一对应，而充电电路中的各个开关器件也可以与各个快充模块一一对应，本申请实施例对快充模块的数量、开关器件的数量、以及电池组2102中各个电池的数量不做具体限定。Moreover, in actual applications, the charging circuit may include multiple fast charging modules, each fast charging module corresponds one-to-one to each battery in the battery pack 2102, and each switching device in the charging circuit may also correspond one-to-one to each fast charging module. The embodiment of the present application does not specifically limit the number of fast charging modules, the number of switching devices, and the number of each battery in the battery pack 2102.
下述以电池组包括2个电池(第一电池和第二电池)为例，对终端设备的充电电路2101进行进一步说明。The following further describes the charging circuit 2101 of the terminal device by taking a battery pack including two batteries (a first battery and a second battery) as an example.
参见图3，图3为本申请实施例提供的一种充电电路的电路拓扑图，如图3所示，该充电电路可以包括：控制模块301、第一快充模块302、第二快充模块303、第一开关器件304、第二开关器件305、第一检测模块306、第二检测模块307和充电模块308。Refer to Figure 3, which is a circuit topology diagram of a charging circuit provided in an embodiment of the present application. As shown in Figure 3, the charging circuit may include: a control module 301, a first fast charging module 302, a second fast charging module 303, a first switching device 304, a second switching device 305, a first detection module 306, a second detection module 307 and a charging module 308.
其中，如图3中的点划线所示，控制模块301分别与第一检测模块306和第二检测模块307连接。如图3中的虚线所示，控制模块301用于根据第一检测模块306和第二检测模块307所采集的信息，对终端设备的充电方式进行调整。As shown by the dotted lines in FIG3 , the control module 301 is respectively connected to the first detection module 306 and the second detection module 307. As shown by the dotted lines in FIG3 , the control module 301 is used to adjust the charging mode of the terminal device according to the information collected by the first detection module 306 and the second detection module 307.
例如，第一检测模块306可以与第一电池连接，第二检测模块307可以与第二电池连接，则第 一检测模块306可以向控制模块301发送第一电池两端的第一电压，第二检测模块307可以向控制模块301发送第二电池两端的第二电压。相应的，控制模块301可以根据第一电压和第二电压，输出控制第一快充模块302、第二快充模块303、第一开关器件304、第二开关器件305和充电模块308。For example, the first detection module 306 may be connected to the first battery, and the second detection module 307 may be connected to the second battery. The first detection module 306 can send a first voltage across the first battery to the control module 301, and the second detection module 307 can send a second voltage across the second battery to the control module 301. Accordingly, the control module 301 can output and control the first fast charging module 302, the second fast charging module 303, the first switch device 304, the second switch device 305 and the charging module 308 according to the first voltage and the second voltage.
而且，如图3中的实线所示，第一快充模块302和第二快充模块303均可以与终端设备的充电端口连接，从而与适配器连接。第一快充模块302还可以与第一电池连接，第二快充模块303还可以与第二电池连接。Moreover, as shown by the solid line in Figure 3, both the first fast charging module 302 and the second fast charging module 303 can be connected to the charging port of the terminal device, thereby connecting to the adapter. The first fast charging module 302 can also be connected to the first battery, and the second fast charging module 303 can also be connected to the second battery.
另外，如图3中的实线所示，充电模块308也可以与终端设备的充电端口连接，从而与适配器连接。充电模块308还可以分别与第一开关器件304和第二开关器件305连接，而第一开关器件304还可以与第一快充模块302的连接，第二开关器件305还可以与第二快充模块303连接。In addition, as shown by the solid line in FIG3 , the charging module 308 can also be connected to the charging port of the terminal device, thereby connecting to the adapter. The charging module 308 can also be connected to the first switch device 304 and the second switch device 305 respectively, and the first switch device 304 can also be connected to the first fast charging module 302, and the second switch device 305 can also be connected to the second fast charging module 303.
此外，充电模块308还可以与终端设备的其他元器件(如处理器)连接，以便充电模块308可以基于电池组提供的电能，为终端设备的各个元器件供电，以维持终端设备的正常工作。In addition, the charging module 308 can also be connected to other components of the terminal device (such as a processor) so that the charging module 308 can power various components of the terminal device based on the power provided by the battery pack to maintain the normal operation of the terminal device.
需要说明的是，上述第一快充模块302、第二快充模块303和充电模块308在与终端设备的充电端口连接时，可以直接与充电端口连接，也可以通过终端设备的保护模块与充电端口连接，本申请实施例对第一快充模块302、第二快充模块303和充电模块308与充电端口的连接方式不做具体限定。It should be noted that when the above-mentioned first fast charging module 302, the second fast charging module 303 and the charging module 308 are connected to the charging port of the terminal device, they can be directly connected to the charging port or connected to the charging port through the protection module of the terminal device. The embodiment of the present application does not specifically limit the connection method between the first fast charging module 302, the second fast charging module 303 and the charging module 308 and the charging port.
另外需要说明的是，在实际应用中，上述控制模块301可以为微控制单元(micro control unit，MCU)，也可以为其他具有数据处理功能的元器件，本申请实施例对控制模块301不做具体限定。It should also be noted that, in actual applications, the control module 301 may be a micro control unit (MCU) or other components with data processing functions. The embodiment of the present application does not specifically limit the control module 301.
而且，上述第一快充模块302和第二快充模块303可以为电荷泵电路模块，也可以为开关电源电路模块，本申请实施例对第一快充模块302和第二快充模块303不做具体限定。Moreover, the above-mentioned first fast charging module 302 and the second fast charging module 303 can be charge pump circuit modules or switching power supply circuit modules. The embodiment of the present application does not specifically limit the first fast charging module 302 and the second fast charging module 303.
例如，第一快充模块302和第二快充模块303中均可以设置具有开关功能的元器件(如MOS)，当该元器件导通时，第一快充模块302和第二快充模块303可以对终端设备的电池进行充电，当该元器件关断时，第一快充模块302和第二快充模块303则停止对终端设备的电池进行充电。For example, components with switching functions (such as MOS) can be set in the first fast charging module 302 and the second fast charging module 303. When the components are turned on, the first fast charging module 302 and the second fast charging module 303 can charge the battery of the terminal device. When the components are turned off, the first fast charging module 302 and the second fast charging module 303 stop charging the battery of the terminal device.
此外，上述第一检测模块306和第二检测模块307可以为不同的元器件，也可以为相同的元器件，还可以为同一元器件，也即是第一检测模块306和第二检测模块307均可以集成在该元器件中完成对电池两端电压的检测，本申请实施例对第一检测模块306和第二检测模块307不做具体限定。In addition, the above-mentioned first detection module 306 and second detection module 307 can be different components, or they can be the same components, or they can be the same component, that is, the first detection module 306 and the second detection module 307 can be integrated in the component to complete the detection of the voltage at both ends of the battery. The embodiment of the present application does not specifically limit the first detection module 306 and the second detection module 307.
基于终端设备进行快速充电所经历的各个充电阶段，下述基于图3所示的充电电路的电路拓扑图，对上述各个充电阶段进行进一步介绍。Based on the various charging stages that the terminal device goes through during fast charging, the following circuit topology diagram based on the charging circuit shown in Figure 3 further introduces the above-mentioned various charging stages.
涓流充电阶段：Trickle charge stage:
终端设备在与适配器连接后，适配器基于充电协议确定终端设备支持快速充电的方式后，若终端设备的电池电量较低，则充电电路的控制模块301可以指示适配器先采用涓流充电的方式，通过充电模块308对第一电池和第二电池同时进行充电。After the terminal device is connected to the adapter, the adapter determines based on the charging protocol that the terminal device supports fast charging. If the battery power of the terminal device is low, the control module 301 of the charging circuit can instruct the adapter to use trickle charging first, and charge the first battery and the second battery simultaneously through the charging module 308.
而且，在充电过程中，充电电路的控制模块301还可以通过第一检测模块306和第二检测模块307，分别确定第一电池的电量和第二电池的电量。当然，终端设备也可以通过第一电池两端的第一电压和第二电池两端的第二电压，分别确定第一电池和第二电池的电量，本申请实施例对确定第一电池和第二电池分别对应的电量的方式不做限定。Moreover, during the charging process, the control module 301 of the charging circuit can also determine the power of the first battery and the power of the second battery respectively through the first detection module 306 and the second detection module 307. Of course, the terminal device can also determine the power of the first battery and the second battery respectively through the first voltage at both ends of the first battery and the second voltage at both ends of the second battery. The embodiment of the present application does not limit the method of determining the power corresponding to the first battery and the second battery respectively.
具体地，第一检测模块306和第二检测模块307可以分别持续对第一电池和第二电池的电量进行检测，也即是第一电池两端的第一电压和第二电池两端的第二电压进行检测，并向控制模块301发送检测结果。Specifically, the first detection module 306 and the second detection module 307 can respectively continuously detect the power levels of the first battery and the second battery, that is, detect the first voltage across the first battery and the second voltage across the second battery, and send the detection results to the control module 301.
控制模块301则可以根据接收的检测结果，与预先设置的第一电压阈值进行比较。若第一电压和第二电压均大于第一电压阈值，则说明第一电池和第二电池均可以开始进行快速充电。The control module 301 can compare the received detection result with a preset first voltage threshold. If both the first voltage and the second voltage are greater than the first voltage threshold, it means that both the first battery and the second battery can start fast charging.
其中，第一电压阈值为预先设置的电压参数，用于确定电池能否采用大电流充电的方式进行充电。The first voltage threshold is a preset voltage parameter used to determine whether the battery can be charged using a high current charging method.
相应的，若控制模块301确定第一电池和第二电池均可以开始采用快充方式进行充电，则控制模块301可以对第一开关器件304或第二开关器件305的状态进行调整，使得第一开关器件304或第二开关器件305由闭合状态切换至断开状态，从而改变充电电路的电路结构。Correspondingly, if the control module 301 determines that both the first battery and the second battery can start charging using the fast charging method, the control module 301 can adjust the state of the first switch device 304 or the second switch device 305, so that the first switch device 304 or the second switch device 305 switches from a closed state to an open state, thereby changing the circuit structure of the charging circuit.
快速充电阶段：Fast charging stage:
与涓流充电阶段相对应的，充电电路的电路结构发生变化后，第一电池单独与第一快充模块302连接，第二电池单独与第二快充模块303连接，从而可以分别对第一电池与第二电池单独进行充电，无需对输入第一电池与第二电池的电流进行限制，可以采用第一电池和第二电池的最大充电电流进 行充电，从而可以提高终端设备的充电效率。Corresponding to the trickle charging stage, after the circuit structure of the charging circuit changes, the first battery is connected to the first fast charging module 302 alone, and the second battery is connected to the second fast charging module 303 alone, so that the first battery and the second battery can be charged separately, without limiting the current input to the first battery and the second battery, and the maximum charging current of the first battery and the second battery can be used. Charging can be carried out to improve the charging efficiency of the terminal equipment.
具体地，参见图4，控制模块301可以向第一开关器件304或第二开关器件305发送指令，控制第一开关器件304或第二开关器件305(图4中以断开第一开关器件304示意)由闭合状态切换为断开状态，则在第一开关器件304和第二开关器件305均处于闭合状态时第一电池和第二电池分别与对应的快充模块单独连接，以便第一电池可以通过第一快充模块302单独进行充电，第二电池也可以通过第二快充模块303单独进行充电。Specifically, referring to Figure 4, the control module 301 can send instructions to the first switch device 304 or the second switch device 305 to control the first switch device 304 or the second switch device 305 (indicated by disconnecting the first switch device 304 in Figure 4) to switch from a closed state to an open state. When the first switch device 304 and the second switch device 305 are both in the closed state, the first battery and the second battery are respectively connected to the corresponding fast charging modules separately, so that the first battery can be charged separately through the first fast charging module 302, and the second battery can also be charged separately through the second fast charging module 303.
进一步地，在快速充电阶段中，第一检测模块306和第二检测模块307可以继续分别对第一电池的第一电压和第二电池的第二电压进行检测，并向控制模块301发送检测结果。控制模块301可以对第一电压和第二电压进行比较，得到二者之间的电压差值。Furthermore, in the fast charging stage, the first detection module 306 and the second detection module 307 may continue to detect the first voltage of the first battery and the second voltage of the second battery respectively, and send the detection results to the control module 301. The control module 301 may compare the first voltage and the second voltage to obtain the voltage difference between the two.
若第一电压与第二电压之间的电压差值大于预先设置的第二电压阈值，说明第一电压与第二电压之间存在的压差较大，则控制模块301为了维持电压均衡，可以对第一快充模块302和/或第二快充模块303进行调整(如调整第一快充模块302和/或第二快充模块303的占空比)，使得第一快充模块302和/或第二快充模块303输出的电流大小发生变化，从而逐渐减小第一电池两端的第一电压和第二电池两端的第二电压之间的压差。If the voltage difference between the first voltage and the second voltage is greater than a preset second voltage threshold, indicating that the voltage difference between the first voltage and the second voltage is large, the control module 301 may adjust the first fast charging module 302 and/or the second fast charging module 303 (such as adjusting the duty cycle of the first fast charging module 302 and/or the second fast charging module 303) in order to maintain voltage balance, so that the current output by the first fast charging module 302 and/or the second fast charging module 303 changes, thereby gradually reducing the voltage difference between the first voltage at both ends of the first battery and the second voltage at both ends of the second battery.
其中，第二电压阈值为预先设置的电压参数，用于确定是否需要对第一电池与第二电池之间的压差进行调整。The second voltage threshold is a preset voltage parameter used to determine whether the voltage difference between the first battery and the second battery needs to be adjusted.
若第一电压与第二电压之间的差值小于或等于预先设置的第二电压阈值，说明第一电压与第二电压的电压相差较小，无需对第一快充模块302和第二快充模块303进行调整，可以继续通过第一快充模块302和第二快充模块303分别对第一电池和第二电池进行充电，直至第一电池和第二电池中的至少一个电池的电压达到第三电压阈值。If the difference between the first voltage and the second voltage is less than or equal to the preset second voltage threshold, it means that the voltage difference between the first voltage and the second voltage is small, and there is no need to adjust the first fast charging module 302 and the second fast charging module 303. The first battery and the second battery can continue to be charged through the first fast charging module 302 and the second fast charging module 303 respectively until the voltage of at least one of the first battery and the second battery reaches the third voltage threshold.
其中，第三电压阈值为预先设置的电压参数，用于确定电池是否需要采用恒压模式进行充电。The third voltage threshold is a preset voltage parameter used to determine whether the battery needs to be charged in a constant voltage mode.
对应的，控制模块301在根据第一检测模块306和第二检测模块307发送的检测结果，确定至少一个电池的电压达到第三电压阈值后，控制模块301可以控制第一快充模块302和第二快充模块303采用恒压充电的方式，分别对第一电池和第二电池进行充电。Correspondingly, after the control module 301 determines that the voltage of at least one battery reaches the third voltage threshold based on the detection results sent by the first detection module 306 and the second detection module 307, the control module 301 can control the first fast charging module 302 and the second fast charging module 303 to adopt a constant voltage charging method to charge the first battery and the second battery respectively.
而且，控制模块301可以继续通过第一检测模块306和第二检测模块307，检测输入第一电池的第一电流和输入第二电池的第二电流，并计算得到第一电流与第二电流的和值，得到总充电电流。Furthermore, the control module 301 may continue to detect the first current input to the first battery and the second current input to the second battery through the first detection module 306 and the second detection module 307, and calculate the sum of the first current and the second current to obtain the total charging current.
恒压充电阶段：Constant voltage charging stage:
随着电池电量的不断增加，第一电压和第二电压不断升高，则第一电流和第二电流也相应减少。当根据第一电流与第二电流得到的总充电电流小于或等于预先设置的电流阈值时，则控制模块301可以再次调整第一开关器件304或第二开关器件305，而且控制模块301也可以控制第一快充模块302和第二快充模块303停止工作，并控制充电模块308同时为第一电池和第二电池充电，直至终端设备充电完毕。As the battery power continues to increase, the first voltage and the second voltage continue to increase, and the first current and the second current also decrease accordingly. When the total charging current obtained according to the first current and the second current is less than or equal to the preset current threshold, the control module 301 can adjust the first switch device 304 or the second switch device 305 again, and the control module 301 can also control the first fast charging module 302 and the second fast charging module 303 to stop working, and control the charging module 308 to charge the first battery and the second battery at the same time until the terminal device is fully charged.
其中，电流阈值为预先设置的电流参数，用于确定是否需要结束恒压充电模式，也即是，用于确定是否可以通过充电模块308对电池组的各个电池进行充电。而且，该电流阈值可以根据第一电池和第二电池在充电过程中充电电流的特性来确定，本申请实施例对电流阈值的参数不做具体限定。The current threshold is a preset current parameter used to determine whether the constant voltage charging mode needs to be terminated, that is, to determine whether each battery of the battery pack can be charged by the charging module 308. Moreover, the current threshold can be determined according to the characteristics of the charging current of the first battery and the second battery during the charging process, and the embodiment of the present application does not specifically limit the parameters of the current threshold.
需要说明的是，上述以2个快充模块和2个开关器件为例进行说明，而在实际应用中，可以减少充电电路的元器件，以降低充电电路的成本。例如，可以保留2个开关器件中的任意一个，并去除另外一个开关器件，从而可以通过保留的开关器件调整充电电路的电路结构。如图5所示，图5中以去除第一开关器件304、保留第二开关器件305为例示出。It should be noted that the above description uses two fast charging modules and two switching devices as an example. In actual applications, the components of the charging circuit can be reduced to reduce the cost of the charging circuit. For example, any one of the two switching devices can be retained and the other switching device can be removed, so that the circuit structure of the charging circuit can be adjusted through the retained switching device. As shown in Figure 5, Figure 5 takes the example of removing the first switching device 304 and retaining the second switching device 305.
另外，本申请实施例中提供的检测模块和/或开关器件，均可以通过多种方式与充电电路中的其他元器件集成，以减小充电电路所占的面积，提高充电电路的灵活性。In addition, the detection module and/or switch device provided in the embodiments of the present application can be integrated with other components in the charging circuit in a variety of ways to reduce the area occupied by the charging circuit and improve the flexibility of the charging circuit.
方式一method one
参见图6，图6为本申请实施例提供的又一种充电电路的电路拓扑图，如图6所示，第一检测模块306集成在第一快充模块302中，第二检测模块307集成在第二快充模块303中，无需在充电电路中额外设置检测模块，从而可以减小充电电路的面积，可以提高充电电路的灵活性。Refer to Figure 6, which is a circuit topology diagram of another charging circuit provided in an embodiment of the present application. As shown in Figure 6, the first detection module 306 is integrated in the first fast charging module 302, and the second detection module 307 is integrated in the second fast charging module 303. There is no need to additionally set a detection module in the charging circuit, thereby reducing the area of the charging circuit and improving the flexibility of the charging circuit.
方式二Method 2
参见图7，图7为本申请实施例提供的又一种充电电路的电路拓扑图，如图7所示，第一开关器件304和第二开关器件305均集成在充电模块308中，无需在充电电路中额外设置开关器件，从而 可以减小充电电路的面积，可以提高充电电路的灵活性。Referring to FIG. 7 , FIG. 7 is a circuit topology diagram of another charging circuit provided in an embodiment of the present application. As shown in FIG. 7 , the first switch device 304 and the second switch device 305 are both integrated in the charging module 308, and there is no need to set additional switch devices in the charging circuit, thereby The area of the charging circuit can be reduced and the flexibility of the charging circuit can be improved.
方式三Method 3
参见图8，图8为本申请实施例提供的又一种充电电路的电路拓扑图，如图8所示，第一开关器件304、第二开关器件305、第一检测模块306和第二检测模块307均集成在充电模块308中。相应的，第一检测模块306和第二检测模块307用于检测电压的检测点可以内置在充电模块308中，也可以通过充电模块308的对外信号管脚，在第一电池和第二电池正负极采样，本申请实施例对第一检测模块306和第二检测模块307的检测点不做具体限定。Referring to FIG8 , FIG8 is a circuit topology diagram of another charging circuit provided in an embodiment of the present application. As shown in FIG8 , the first switch device 304, the second switch device 305, the first detection module 306 and the second detection module 307 are all integrated in the charging module 308. Accordingly, the detection points for detecting the voltage of the first detection module 306 and the second detection module 307 can be built into the charging module 308, or can be sampled at the positive and negative electrodes of the first battery and the second battery through the external signal pin of the charging module 308. The embodiment of the present application does not specifically limit the detection points of the first detection module 306 and the second detection module 307.
而且，第一检测模块306和第二检测模块307可以通过充电模块308的通信接口与控制模块301进行数据交互，无需在充电电路中额外设置开关器件和检测模块，从而可以减小充电电路的面积，可以提高充电电路的灵活性。Moreover, the first detection module 306 and the second detection module 307 can exchange data with the control module 301 through the communication interface of the charging module 308, without the need to additionally set up switching devices and detection modules in the charging circuit, thereby reducing the area of the charging circuit and improving the flexibility of the charging circuit.
需要说明的是，上述示出了3种集成方式，而在实际应用中，还可以采用其他集成方式对充电电路中的各个元器件进行集成，本申请实施例对充电电路中各个元器件的集成方式不做具体限定。It should be noted that three integration methods are shown above, and in actual applications, other integration methods can also be used to integrate the various components in the charging circuit. The embodiment of the present application does not specifically limit the integration method of the various components in the charging circuit.
进一步地，上述以充电电路与2个电池相连接为例，对充电电路的连接关系和工作原理进行了说明，而在实际应用中，终端设备的电池组可以包括多个电池，下述对充电电路与多个电池相连接的情况进行介绍。Furthermore, the above description uses the example of connecting a charging circuit to two batteries to explain the connection relationship and working principle of the charging circuit. In actual applications, the battery pack of the terminal device may include multiple batteries. The following describes the case where the charging circuit is connected to multiple batteries.
参见图9，图9为本申请实施例提供的又一种充电电路的电路拓扑图，如图9所示，充电电路中可以包括N个快充模块，每个快充模块与终端设备中对应的电池相连接。而且，充电电路中还可以包括N个检测模块，每个检测模块用于检测对应的电池的电流电压等参数。类似的，充电电路中还可以包括N个开关器件，每个开关器件用于控制对应的电池是否与其他电池并联连接。其中N为正整数。Referring to Figure 9, Figure 9 is a circuit topology diagram of another charging circuit provided in an embodiment of the present application. As shown in Figure 9, the charging circuit may include N fast charging modules, each of which is connected to a corresponding battery in the terminal device. Moreover, the charging circuit may also include N detection modules, each of which is used to detect parameters such as current and voltage of the corresponding battery. Similarly, the charging circuit may also include N switching devices, each of which is used to control whether the corresponding battery is connected in parallel with other batteries. Wherein N is a positive integer.
综上所述，本申请实施例提供的充电电路，在不影响电池安全的基础上，在充电电路中设置多个快充模块和每个快充模块对应的开关器件，通过在终端设备进行充电的快速充电阶段，通过调整各个开关器件的状态，使得各个电池分别可以通过快充模块单独进行快速充电，从而可以在快充阶段采用更大的电流对电池进行充电，减小终端设备充电所花费的时间，可以提高终端设备的充电效率。To summarize, the charging circuit provided in the embodiment of the present application, without affecting the safety of the battery, sets multiple fast charging modules and switching devices corresponding to each fast charging module in the charging circuit, and by adjusting the state of each switching device during the fast charging stage of charging the terminal device, each battery can be fast charged separately through the fast charging module, so that a larger current can be used to charge the battery during the fast charging stage, thereby reducing the time spent on charging the terminal device and improving the charging efficiency of the terminal device.
图10为本申请实施例提供的一种充电方法的示意性流程图，作为示例而非限定，该方法可以应用于上述终端设备的充电电路中，参见图10，该方法包括：FIG10 is a schematic flow chart of a charging method provided in an embodiment of the present application. As an example but not a limitation, the method can be applied to the charging circuit of the above-mentioned terminal device. Referring to FIG10 , the method includes:
步骤1001、获取第一电池两端的第一电压和第二电池两端的第二电压。Step 1001: Obtain a first voltage across two terminals of a first battery and a second voltage across two terminals of a second battery.
其中，第一电池和第二电池均可以为终端设备中电池组所包括的电池，如图3、图6、图7或图8所示，第一电池分别与第一快充模块和第一检测模块相对应，第二电池分别与第二快充模块和第二检测模块相对应。Among them, the first battery and the second battery can both be batteries included in the battery pack in the terminal device, as shown in Figure 3, Figure 6, Figure 7 or Figure 8, the first battery corresponds to the first fast charging module and the first detection module respectively, and the second battery corresponds to the second fast charging module and the second detection module respectively.
终端设备在与适配器连接后，适配器可以向终端设备提供用于充电的电压和电流。相应的，终端设备可以通过预先设置的充电电路对适配器输出的电压电流进行调整，使得调整后的电压电流符合终端设备所需的电压电流，从而可以对终端设备进行充电。After the terminal device is connected to the adapter, the adapter can provide the terminal device with a voltage and current for charging. Correspondingly, the terminal device can adjust the voltage and current output by the adapter through a pre-set charging circuit so that the adjusted voltage and current meet the voltage and current required by the terminal device, thereby charging the terminal device.
在充电过程中，终端设备可以通过预先设置的与各个电池相对应的检测模块，分别对每个电池两端的电压进行检测，得到检测结果，从而可以根据检测结果确定各个电池分别对应的电量，以便在后续步骤中，终端设备可以根据每个电池分别对应的电量，采用快速充电的方式分别单独对各个电池进行充电。During the charging process, the terminal device can detect the voltage across each battery through a pre-set detection module corresponding to each battery to obtain a detection result, so that the corresponding power of each battery can be determined according to the detection result, so that in the subsequent steps, the terminal device can charge each battery separately by fast charging according to the corresponding power of each battery.
具体地，终端设备在开始充电后，图3、图6、图7或图8中所示的第一检测模块可以开始对第一电池两端的电压进行检测，并向充电电路中的控制模块传输检测结果。控制模块则可以接收第一检测模块发送的检测结果，并根据该检测结果确定第一电池两端的第一电压，从而确定第一电池当前的电量，以便在后续步骤中，终端设备可以根据第一电池的电量，确定能否针对第一电池进行快速充电。Specifically, after the terminal device starts charging, the first detection module shown in FIG. 3, FIG. 6, FIG. 7 or FIG. 8 can start to detect the voltage across the first battery and transmit the detection result to the control module in the charging circuit. The control module can receive the detection result sent by the first detection module, and determine the first voltage across the first battery according to the detection result, thereby determining the current power of the first battery, so that in subsequent steps, the terminal device can determine whether the first battery can be quickly charged according to the power of the first battery.
类似的，第二检测模块也可以采用与上述第一检测模块类似的方式，对第二电池两端的第二电压进行检测，充电电路也可以根据第二检测模块传输的检测结果，确定第二电池两端的第二电压，从而确定第二电池的电量。Similarly, the second detection module can also detect the second voltage at both ends of the second battery in a manner similar to the first detection module mentioned above, and the charging circuit can also determine the second voltage at both ends of the second battery based on the detection result transmitted by the second detection module, thereby determining the power of the second battery.
需要说明的是，第一检测模块和第二检测模块在分别检测第一电压和第二电压时，均可以实时 采集第一电压和第二电压，也可以周期性地采集第一电压和第二电压，本申请实施例对获取第一电压和第二电压的方式不做具体限定。It should be noted that the first detection module and the second detection module can detect the first voltage and the second voltage in real time. The first voltage and the second voltage may be collected, or the first voltage and the second voltage may be collected periodically. The embodiment of the present application does not specifically limit the manner of obtaining the first voltage and the second voltage.
步骤1002、根据第一电压阈值，结合第一电压和第二电压，对第一开关器件或第二开关器件的状态进行调整。Step 1002: According to the first voltage threshold, in combination with the first voltage and the second voltage, adjust the state of the first switch device or the second switch device.
其中，第一电压阈值为预先设置的参数，用于确定电池能否采用大电流充电的方式进行充电，也即是用于判断能否采用快速充电的方式对电池进行充电。当任一电池两端的电压大于第一电压阈值时，则说明可以通过快速充电的方式，采用大电流对该电池进行充电。The first voltage threshold is a preset parameter used to determine whether the battery can be charged by high current, that is, whether the battery can be charged by fast charging. When the voltage across any battery is greater than the first voltage threshold, it means that the battery can be charged by fast charging with high current.
具体地，在分别对第一电池和第二电池进行检测得到检测结果后，终端设备可以通过控制模块基于检测结果确定第一电压和第二电压。之后，控制模块可以将检测得到的两个电压分别与预先设置的第一电压阈值进行比较，得到比较结果。Specifically, after the first battery and the second battery are detected and the detection results are obtained, the terminal device can determine the first voltage and the second voltage based on the detection results through the control module. Afterwards, the control module can compare the two detected voltages with the preset first voltage threshold to obtain a comparison result.
若比较结果指示第一电压和第二电压均大于第一电压阈值，则说明第一电池和第二电池均无需继续采用小电流充电的方式，而是可以采用大电流进行充电，以提高终端设备的充电速度。If the comparison result indicates that both the first voltage and the second voltage are greater than the first voltage threshold, it means that the first battery and the second battery do not need to continue to be charged with a small current, but can be charged with a large current to increase the charging speed of the terminal device.
相应的，终端设备可以通过控制模块，向第一开关器件或第二开关器件发送指令，使得第一开关器件或第二开关器件由闭合状态切换至断开状态，从而对充电电路的电路结构进行调整，得到如图4或图5所示的充电电路，第一电池与第一快充模块单独连接，第二电池与第二快充模块单独连接，以便在后续步骤中，第一电池和第二电池可以单独通过对应的快充模块进行大电流充电。Correspondingly, the terminal device can send instructions to the first switch device or the second switch device through the control module, so that the first switch device or the second switch device switches from a closed state to an open state, thereby adjusting the circuit structure of the charging circuit to obtain a charging circuit as shown in Figure 4 or 5, in which the first battery is separately connected to the first fast charging module, and the second battery is separately connected to the second fast charging module, so that in subsequent steps, the first battery and the second battery can be separately charged with high current through the corresponding fast charging modules.
步骤1003、分别对第一电池和第二电池单独充电。Step 1003: Charge the first battery and the second battery separately.
与步骤1002相对应的，在终端设备通过控制模块对充电电路的电路结构进行调整后，终端设备可以采用快速充电的方式，也即是大电流充电的方式，分别对第一电池和第二电池进行快速充电。Corresponding to step 1002, after the terminal device adjusts the circuit structure of the charging circuit through the control module, the terminal device can adopt a fast charging method, that is, a large current charging method, to quickly charge the first battery and the second battery respectively.
具体地，如图4或图5所示，终端设备可以通过控制模块向充电模块发送指令，指示充电模块停止对第一电池和第二电池进行充电，并通过充电模块基于第一电池和第二电池所提供的电量为终端设备供电。Specifically, as shown in Figure 4 or Figure 5, the terminal device can send an instruction to the charging module through the control module, instructing the charging module to stop charging the first battery and the second battery, and power the terminal device based on the power provided by the first battery and the second battery through the charging module.
同时，终端设备还可以通过控制模块向第一快充模块和第二快充模块发送指令，指示第一快充模块和第二快充模块中的开关元器件导通，使得第一快充模块和第二快充模块开始输出电流，从而可以通过第一快充模块和第二快充模块分别单独对第一电池和第二电池进行充电。At the same time, the terminal device can also send instructions to the first fast charging module and the second fast charging module through the control module, instructing the switching components in the first fast charging module and the second fast charging module to turn on, so that the first fast charging module and the second fast charging module start to output current, so that the first battery and the second battery can be charged separately through the first fast charging module and the second fast charging module.
步骤1004、根据第二电压阈值，对第一电压和第二电压进行调整。Step 1004: adjust the first voltage and the second voltage according to the second voltage threshold.
其中，第二电压阈值为预先设置的电压参数，用于判断第一电压和第二电压之间是否均衡。例如，若第一电压与第二电压的电压差值大于第二电压阈值，则说明第一电池与第二电池之间的电压相差较大，需要对第一电压和第二电压进行调整，以保证二者之间的平衡。The second voltage threshold is a preset voltage parameter used to determine whether the first voltage and the second voltage are balanced. For example, if the voltage difference between the first voltage and the second voltage is greater than the second voltage threshold, it means that the voltage difference between the first battery and the second battery is large, and the first voltage and the second voltage need to be adjusted to ensure the balance between the two.
在对第一电池和第二电池进行单独充电的过程中，终端设备可以继续对第一电压和第二电压进行检测，可以实时对两个电压进行调整，使得第一电池与第二电池之间可以保持电压均衡。During the process of charging the first battery and the second battery separately, the terminal device can continue to detect the first voltage and the second voltage, and can adjust the two voltages in real time so that the voltage balance can be maintained between the first battery and the second battery.
与步骤1001类似的，终端设备在采用快速充电的方式，分别对第一电池和第二电池进行大电流充电后，终端设备可以继续通过第一检测模块和第二检测模块对第一电压和第二电压进行检测。Similar to step 1001, after the terminal device uses fast charging to charge the first battery and the second battery with a large current respectively, the terminal device can continue to detect the first voltage and the second voltage through the first detection module and the second detection module.
相应的，终端设备可以通过控制模块根据检测得到的检测结果进行计算，也即是，根据第一电压和第二电压进行计算，得到二者之间的电压差值。之后，控制模块可以将计算得到的电压差值与预先设置的第二电压阈值进行比较，得到电压差值与第二电压阈值之间的大小关系。Accordingly, the terminal device can calculate according to the detection result obtained by the control module, that is, calculate according to the first voltage and the second voltage to obtain the voltage difference between the two. Afterwards, the control module can compare the calculated voltage difference with the preset second voltage threshold to obtain the magnitude relationship between the voltage difference and the second voltage threshold.
若计算得到的电压差值小于或等于第二电压阈值，则说明第一电压和第二电压相差较小，控制模块无需对第一电池两端的电压与第二电池两端的电压进行调整。相应的，控制模块也无需对第一快充模块和第二快充模块所输出的电压电流进行调整。If the calculated voltage difference is less than or equal to the second voltage threshold, it means that the difference between the first voltage and the second voltage is small, and the control module does not need to adjust the voltage across the first battery and the voltage across the second battery. Accordingly, the control module does not need to adjust the voltage and current output by the first fast charging module and the second fast charging module.
若计算得到的电压差值大于第二电压阈值，则说明第一电压和第二电压之间的电压相差较大，会引起第一电池与第二电池之间的电压不均衡。因此，控制模块需要对第一电压和第二电压进行调整，使得计算得到的电压差值小于或等于第二电压阈值。If the calculated voltage difference is greater than the second voltage threshold, it means that the voltage difference between the first voltage and the second voltage is large, which will cause voltage imbalance between the first battery and the second battery. Therefore, the control module needs to adjust the first voltage and the second voltage so that the calculated voltage difference is less than or equal to the second voltage threshold.
进一步地，控制模块在调整第一电压和第二电压的过程中，可以提高某个快充模块输出的电压电流，也可以降低某个快充模块输出的电压电流，还可以同时控制一个快充模块提高输出的电压电流，并控制另一个快充模块降低输出的电压电流，另外还可以向适配器发送指令，通过发送的指令指示适配器调整输出的电压电流，从而与各个快充模块相配合，实现对第一电压和第二电压的调整，本申请实施例对控制模块调整第一电压和第二电压的方式不做限定。Furthermore, in the process of adjusting the first voltage and the second voltage, the control module can increase the voltage and current output by a certain fast charging module, or reduce the voltage and current output by a certain fast charging module. It can also simultaneously control one fast charging module to increase the output voltage and current, and control another fast charging module to reduce the output voltage and current. In addition, it can also send instructions to the adapter to instruct the adapter to adjust the output voltage and current through the sent instructions, so as to cooperate with each fast charging module to achieve the adjustment of the first voltage and the second voltage. The embodiment of the present application does not limit the way in which the control module adjusts the first voltage and the second voltage.
下述以第一电压高于第二电压、且二者之间的电压差值大于第二电压阈值为例，对控制模块调 整各个快充模块的过程进行说明。In the following, the first voltage is higher than the second voltage, and the voltage difference between the two is greater than the second voltage threshold. The process of adjusting each fast charging module is explained below.
具体地，由于第一电池两端的电压较高，则控制模块可以向第一快充模块发送指令，控制第一快充模块降低输出的电压电流，从而通过较小的电流为第一电池进行充电，以降低第一电压逐渐升高的速度，以便在经过一段时间后，第一电压与第二电压之间可以电压均衡。Specifically, since the voltage across the first battery is higher, the control module can send instructions to the first fast charging module to control the first fast charging module to reduce the output voltage and current, thereby charging the first battery with a smaller current to reduce the rate at which the first voltage gradually increases, so that after a period of time, the first voltage and the second voltage can be balanced.
或者，控制模块可以向第二快充模块发送指令，控制第二快充模块提高输出的电压电流，从而通过较大的电流为第二电池进行充电，从而快速提高第二电压，进而使得第一电压与第二电压之间维持均衡。Alternatively, the control module can send instructions to the second fast charging module to control the second fast charging module to increase the output voltage and current, thereby charging the second battery with a larger current, thereby quickly increasing the second voltage, and thereby maintaining a balance between the first voltage and the second voltage.
或者，控制模块可以同时向第一快充模块和第二快充模块发送指令，使得第一快充模块降低输出的电压电流、第二快充模块提高低输出的电压电流，从而可以进一步加快实现第一电压与第二电压之间的电压均衡。Alternatively, the control module can send instructions to the first fast charging module and the second fast charging module at the same time, so that the first fast charging module reduces the output voltage and current and the second fast charging module increases the low output voltage and current, thereby further accelerating the realization of voltage balance between the first voltage and the second voltage.
或者，控制模块也可以通过终端设备向适配器发送通信指令，该通信指令用于指示适配器调整输出的电压电流。相应的，适配器可以根据该通信指令对输出的电压电流进行调整。当适配器对输出的电压电流进行调整后，输入第一快充模块和第二快充模块的电压电流也相应发生变化，则第一快充模块和第二快充模块输出的电流也发生变化，从而可以实现第一电压与第二电压之间的电压均衡。Alternatively, the control module may also send a communication instruction to the adapter through the terminal device, and the communication instruction is used to instruct the adapter to adjust the output voltage and current. Accordingly, the adapter can adjust the output voltage and current according to the communication instruction. When the adapter adjusts the output voltage and current, the voltage and current input to the first fast charging module and the second fast charging module also change accordingly, and the current output by the first fast charging module and the second fast charging module also changes, thereby achieving voltage balance between the first voltage and the second voltage.
相应的，通过第一检测模块和第二检测模块分别对第一电池和第二电池的检测，当控制模块再次确定第一电池两端的第一电压与第二电池两端的第二电压之间的电压差值，小于或等于预先设置的第二电压阈值时，控制模块可以再次向第一快充模块和/或第二快充模块发送指令，使得第一快充模块和/或第二快充模块可以根据接收的指令，对第一快充模块和/或第二快充模块输出的电压电流进行恢复。Correspondingly, through the detection of the first battery and the second battery by the first detection module and the second detection module respectively, when the control module again determines that the voltage difference between the first voltage at both ends of the first battery and the second voltage at both ends of the second battery is less than or equal to the preset second voltage threshold, the control module can again send instructions to the first fast charging module and/or the second fast charging module, so that the first fast charging module and/or the second fast charging module can restore the voltage and current output by the first fast charging module and/or the second fast charging module according to the received instructions.
步骤1005、根据第三电压阈值，结合第一电压和第二电压，采用恒压充电的方式对第一电池和第二电池进行充电。Step 1005: Charge the first battery and the second battery in a constant voltage charging manner according to the third voltage threshold in combination with the first voltage and the second voltage.
其中，第三电压阈值为预先设置的电压参数，用于确定电池是否需要采用恒压模式进行充电。例如，当电池电压大于或等于第三电压阈值时，终端设备可以采用恒压模式对电池进行充电，也即是，终端设备通过控制模块使得快充模块保持输出电压不变的方式输出电流对电池进行充电。The third voltage threshold is a preset voltage parameter used to determine whether the battery needs to be charged in constant voltage mode. For example, when the battery voltage is greater than or equal to the third voltage threshold, the terminal device can charge the battery in constant voltage mode, that is, the terminal device controls the module so that the fast charging module maintains the output voltage unchanged to output current to charge the battery.
终端设备的控制模块不但可以通过第一检测模块和第二检测模块，判断第一电池与第二电池之间是否电压均衡，还可以通过第一检测模块和第二检测模块，确定是否需要采用恒压模式对第一电池和第二电池进行充电。The control module of the terminal device can not only determine whether the voltage between the first battery and the second battery is balanced through the first detection module and the second detection module, but also determine whether the first battery and the second battery need to be charged in a constant voltage mode through the first detection module and the second detection module.
需要说明的是，本步骤1005的过程与步骤1001至步骤1002的过程类似，即为控制模块先通过第一检测模块和第二检测模块获取第一电压和第二电压，再将获取的第一电压和第二电压分别与第三电压阈值进行比较。当第一电压和第二电压均达到第三电压阈值时，控制模块可以控制第一快充模块和第二快充模块均采用恒压充电的方式，分别对第一电池和第二电池进行充电。It should be noted that the process of step 1005 is similar to the process of step 1001 to step 1002, that is, the control module first obtains the first voltage and the second voltage through the first detection module and the second detection module, and then compares the obtained first voltage and the second voltage with the third voltage threshold. When the first voltage and the second voltage both reach the third voltage threshold, the control module can control the first fast charging module and the second fast charging module to charge the first battery and the second battery respectively by constant voltage charging.
步骤1006、根据电流阈值，结合第一电压和第二电压，以及分别输入第一电池的第一充电电流和输入第二电池的第二充电电流，再次对第一开关器件或第二开关器件的状态进行调整。Step 1006: According to the current threshold, in combination with the first voltage and the second voltage, and the first charging current input to the first battery and the second charging current input to the second battery, the state of the first switch device or the second switch device is adjusted again.
其中，电流阈值为预先设置的电流参数，用于确定是否需要结束恒压充电模式，也即是，用于确定是否可以通过充电模块对电池组的各个电池进行充电。The current threshold is a preset current parameter used to determine whether the constant voltage charging mode needs to be terminated, that is, used to determine whether each battery of the battery pack can be charged through the charging module.
终端设备在采用恒压模式对第一电池和第二电池进行充电后，输入第一电池的第一充电电流和输入第二电池的第二充电电流，会随着电池两端电压的升高而逐渐减小。当第一充电电流和第二充电电流减小到一定程度后，通过充电模块即可满足第一电池和第二电池的充电需求，无需通过快充模块分别对第一电池和第二电池单独充电。After the terminal device charges the first battery and the second battery in constant voltage mode, the first charging current input to the first battery and the second charging current input to the second battery will gradually decrease as the voltage across the batteries increases. When the first charging current and the second charging current decrease to a certain extent, the charging requirements of the first battery and the second battery can be met by the charging module, without the need to charge the first battery and the second battery separately through the fast charging module.
相应的，终端设备可以通过控制模块对第一开关器件或第二开关器件进行调整，得到如图3、图6、图7或图8中所示的充电电路，使得第一开关器件和第二开关器件中处于断开状态的开关器件切换至闭合状态，以便在后续步骤中，可以通过充电模块为第一电池和第二电池共同充电。Correspondingly, the terminal device can adjust the first switching device or the second switching device through the control module to obtain a charging circuit as shown in Figure 3, Figure 6, Figure 7 or Figure 8, so that the switching device in the open state of the first switching device and the second switching device is switched to a closed state, so that in subsequent steps, the first battery and the second battery can be charged together through the charging module.
具体地，终端设备在采用恒压模式进行充电后，终端设备的控制模块可以获取输入第一电池的第一充电电流和输入第二电池的第二充电电流，并根据第一充电电流和第二充电电流进行计算，得到二者之间的和值，也即是总充电电流。Specifically, after the terminal device is charged in constant voltage mode, the control module of the terminal device can obtain the first charging current input to the first battery and the second charging current input to the second battery, and calculate based on the first charging current and the second charging current to obtain the sum of the two, which is the total charging current.
之后，控制模块可以将总充电电流与预先设置的电流阈值进行比较，得到二者之间的大小关系。若总充电电流大于电流阈值，则说明充电模块无法提供与总充电电流相匹配的充电电流，可以继续 通过第一快充模块和第二快充模块分别对第一电池和第二电池单独进行充电。After that, the control module can compare the total charging current with the preset current threshold to obtain the magnitude relationship between the two. If the total charging current is greater than the current threshold, it means that the charging module cannot provide a charging current that matches the total charging current, and you can continue The first battery and the second battery are charged separately by the first fast charging module and the second fast charging module respectively.
若总充电电流小于或等于电流阈值，则说明充电模块可以单独提供与总充电电流相匹配的充电电流，控制模块可以向第一开关器件和第二开关器件中处于断开状态的开关器件发送指令，指示该开关器件由断开状态切换至闭合状态，从而调整充电电路的电路结构，使得第一电池与第二电池并联连接后，再与充电模块串联连接。If the total charging current is less than or equal to the current threshold, it means that the charging module can independently provide a charging current that matches the total charging current. The control module can send an instruction to the switch device in the first switching device and the second switching device that is in the disconnected state, instructing the switch device to switch from the disconnected state to the closed state, thereby adjusting the circuit structure of the charging circuit so that the first battery is connected in parallel with the second battery and then connected in series with the charging module.
需要说明的是，控制模块在获取第一充电电流和第二充电电流的过程中，可以通过各个快充模块向控制模块反馈当前输出的充电电流的大小，也可以通过各个检测模块向控制模块反馈输入各个电池的充电电流的大小，本申请实施例对控制模块获取充电电流的方式不做具体限定。It should be noted that, in the process of obtaining the first charging current and the second charging current, the control module can feedback the magnitude of the currently output charging current to the control module through each fast charging module, and can also feedback the magnitude of the charging current input to each battery to the control module through each detection module. The embodiment of the present application does not specifically limit the way in which the control module obtains the charging current.
步骤1007、通过充电模块对第一电池和第二电池充电，直至充电完毕。Step 1007: Charge the first battery and the second battery through the charging module until charging is completed.
与步骤1006相对应的，终端设备在对充电电路进行调整后，终端设备的控制模块可以向第一快充模块、第二快充模块和充电模块发送指令，控制第一快充模块和第二快充模块停止输出，并控制充电模块为第一电池和第二电池进行充电。Corresponding to step 1006, after the terminal device adjusts the charging circuit, the control module of the terminal device can send instructions to the first fast charging module, the second fast charging module and the charging module to control the first fast charging module and the second fast charging module to stop output, and control the charging module to charge the first battery and the second battery.
具体地，终端设备可以先分别向第一快充模块、第二快充模块和充电模块发送指令，使得第一快充模块和第二快充模块中的开关元器件可以根据该指令关断，从而控制第一快充模块和第二快充模块停止为第一电池和第二电池充电。同时，充电模块可以根据接收的指令，控制充电模块中的开关元器件导通，从而可以通过充电模块同时为第一电池和第二电池进行充电，直至第一电池和第二电池充电完毕。而且，在通过充电模块为第一电池和第二电池进行充电的过程中，可以通过充电模块为终端设备进行供电。Specifically, the terminal device can first send instructions to the first fast charging module, the second fast charging module and the charging module respectively, so that the switch components in the first fast charging module and the second fast charging module can be turned off according to the instructions, thereby controlling the first fast charging module and the second fast charging module to stop charging the first battery and the second battery. At the same time, the charging module can control the switch components in the charging module to turn on according to the received instructions, so that the first battery and the second battery can be charged at the same time through the charging module until the first battery and the second battery are fully charged. Moreover, in the process of charging the first battery and the second battery through the charging module, the terminal device can be powered by the charging module.
综上所述，本申请实施例提供的充电方法，控制模块根据第一电池的第一电压和第二电池的第二电压，对第一开关器件和第二开关器件的状态进行调整，使得充电电路的电路结构发生变化，可以通过第一快充模块和第二快充模块分别对第一电池和第二电池单独进行快速充电，从而可以在快充阶段采用更大的电流对电池进行充电，减小终端设备充电所花费的时间，可以提高终端设备的充电效率。To summarize, in the charging method provided in the embodiment of the present application, the control module adjusts the states of the first switching device and the second switching device according to the first voltage of the first battery and the second voltage of the second battery, so that the circuit structure of the charging circuit changes, and the first battery and the second battery can be fast charged separately through the first fast charging module and the second fast charging module, so that a larger current can be used to charge the battery in the fast charging stage, thereby reducing the time spent on charging the terminal device and improving the charging efficiency of the terminal device.
而且，在分别对第一电池和第二电池进行快速充电的过程中，控制模块可以根据第一电压和第二电压，实时调整第一快充模块和/或第二快充模块所输出的电压电流，从而可以及时维持第一电压和第二电压之间的电压均衡，避免再次通过充电模块对第一电池和第二电池充电时出现某个电池向另一个电池放电的情况，进而可以提高终端设备充电的安全性。Moreover, in the process of fast charging the first battery and the second battery respectively, the control module can adjust the voltage and current output by the first fast charging module and/or the second fast charging module in real time according to the first voltage and the second voltage, so as to timely maintain the voltage balance between the first voltage and the second voltage, and avoid the situation where one battery discharges to another battery when the first battery and the second battery are charged again through the charging module, thereby improving the charging safety of the terminal device.
另外，通过对第一充电电流和第二充电电流的检测，终端设备可以在第一充电电流和第二充电电流降低到一定程度后，再次通过充电模块对第一电池和第二电池进行充电，从而可以通过充电模块同时为并联的第一电池和第二电池进行充电，可以降低终端设备进行充电的功耗。In addition, by detecting the first charging current and the second charging current, the terminal device can charge the first battery and the second battery again through the charging module after the first charging current and the second charging current are reduced to a certain level, so that the first battery and the second battery in parallel can be charged at the same time through the charging module, which can reduce the power consumption of the terminal device for charging.
应理解，上述实施例中各步骤的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
下面介绍本申请实施例涉及的终端设备。请参阅图11，图11为本申请实施例提供的一种终端设备的结构示意图。The following introduces the terminal device involved in the embodiment of the present application. Please refer to Figure 11, which is a structural diagram of a terminal device provided in the embodiment of the present application.
终端设备可以包括处理器1110，外部存储器接口1120，内部存储器1121，通用串行总线(universal serial bus，USB)接口1130，充电管理模块1140，电源管理模块1141，电池1142，天线1，天线2，移动通信模块1150，无线通信模块1160，音频模块1170，扬声器1170A，受话器1170B，麦克风1170C，耳机接口1170D，传感器模块1180，按键1190，马达1191，指示器1192，摄像头1193，显示屏1194，以及用户标识模块(subscriber identification module，SIM)卡接口1195等。其中传感器模块1180可以包括压力传感器1180A，陀螺仪传感器1180B，气压传感器1180C，磁传感器1180D，加速度传感器1180E，距离传感器1180F，接近光传感器1180G，指纹传感器1180H，温度传感器1180J，触摸传感器1180K，环境光传感器1180L，骨传导传感器1180M等。The terminal device may include a processor 1110, an external memory interface 1120, an internal memory 1121, a universal serial bus (USB) interface 1130, a charging management module 1140, a power management module 1141, a battery 1142, an antenna 1, an antenna 2, a mobile communication module 1150, a wireless communication module 1160, an audio module 1170, a speaker 1170A, a receiver 1170B, a microphone 1170C, an earphone interface 1170D, a sensor module 1180, a button 1190, a motor 1191, an indicator 1192, a camera 1193, a display screen 1194, and a subscriber identification module (SIM) card interface 1195, etc. The sensor module 1180 may include a pressure sensor 1180A, a gyroscope sensor 1180B, an air pressure sensor 1180C, a magnetic sensor 1180D, an acceleration sensor 1180E, a distance sensor 1180F, a proximity light sensor 1180G, a fingerprint sensor 1180H, a temperature sensor 1180J, a touch sensor 1180K, an ambient light sensor 1180L, a bone conduction sensor 1180M, and the like.
其中，充电管理模块1140可以为上述图3至图9中所示的充电电路，电源管理模块1141可以为充电电路中的控制模块，电池1142可以为上述图3至图9中所示的电池组，电池组中可以包括第一电池和第二电池，下述以充电管理模块1140、电源管理模块1141和电池1142为例，继续对本申请实施例提供的充电电路进行介绍。 Among them, the charging management module 1140 can be the charging circuit shown in Figures 3 to 9 above, the power management module 1141 can be a control module in the charging circuit, and the battery 1142 can be the battery pack shown in Figures 3 to 9 above, and the battery pack can include a first battery and a second battery. The following takes the charging management module 1140, the power management module 1141 and the battery 1142 as an example to continue to introduce the charging circuit provided in the embodiment of the present application.
可以理解的是，本发明实施例示意的结构并不构成对终端设备的具体限定。在本申请另一些实施例中，终端设备可以包括比图示更多或更少的部件，或者组合某些部件，或者拆分某些部件，或者不同的部件布置。图示的部件可以以硬件，软件或软件和硬件的组合实现。It is to be understood that the structure illustrated in the embodiment of the present invention does not constitute a specific limitation on the terminal device. In other embodiments of the present application, the terminal device may include more or fewer components than shown in the figure, or combine certain components, or split certain components, or arrange the components differently. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.
处理器1110可以包括一个或多个处理单元，例如：处理器1110可以包括应用处理器(application processor，AP)，调制解调处理器，图形处理器(graphics processing unit，GPU)，图像信号处理器(image signal processor，ISP)，控制器，存储器，视频编解码器，数字信号处理器(digital signal processor，DSP)，基带处理器，和/或神经网络处理器(neural-network processing unit，NPU)等。其中，不同的处理单元可以是独立的器件，也可以集成在一个或多个处理器中。The processor 1110 may include one or more processing units, for example, the processor 1110 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), a controller, a memory, a video codec, a digital signal processor (digital signal processor, DSP), a baseband processor, and/or a neural-network processing unit (neural-network processing unit, NPU), etc. Among them, different processing units may be independent devices or integrated in one or more processors.
其中，控制器可以是终端设备的神经中枢和指挥中心。控制器可以根据指令操作码和时序信号，产生操作控制信号，完成取指令和执行指令的控制。The controller can be the nerve center and command center of the terminal device. The controller can generate operation control signals according to the instruction operation code and timing signal to complete the control of fetching and executing instructions.
处理器1110中还可以设置存储器，用于存储指令和数据。在一些实施例中，处理器1110中的存储器为高速缓冲存储器。该存储器可以保存处理器1110刚用过或循环使用的指令或数据。如果处理器1110需要再次使用该指令或数据，可从所述存储器中直接调用。避免了重复存取，减少了处理器1110的等待时间，因而提高了***的效率。The processor 1110 may also be provided with a memory for storing instructions and data. In some embodiments, the memory in the processor 1110 is a cache memory. The memory may store instructions or data that the processor 1110 has just used or cyclically used. If the processor 1110 needs to use the instruction or data again, it may be directly called from the memory. This avoids repeated access, reduces the waiting time of the processor 1110, and thus improves the efficiency of the system.
在一些实施例中，处理器1110可以包括一个或多个接口。接口可以包括集成电路(inter-integrated circuit，I2C)接口，集成电路内置音频(inter-integrated circuit sound，I2S)接口，脉冲编码调制(pulse code modulation，PCM)接口，通用异步收发传输器(universal asynchronous receiver/transmitter，UART)接口，移动产业处理器接口(mobile industry processor interface，MIPI)，通用输入输出(general-purpose input/output，GPIO)接口，用户标识模块(subscriber identity module，SIM)接口，和/或通用串行总线(universal serial bus，USB)接口等。In some embodiments, the processor 1110 may include one or more interfaces. The interface may include an inter-integrated circuit (I2C) interface, an inter-integrated circuit sound (I2S) interface, a pulse code modulation (PCM) interface, a universal asynchronous receiver/transmitter (UART) interface, a mobile industry processor interface (MIPI), a general-purpose input/output (GPIO) interface, a subscriber identity module (SIM) interface, and/or a universal serial bus (USB) interface, etc.
I2C接口是一种双向同步串行总线，包括一根串行数据线(serial data line，SDA)和一根串行时钟线(derail clock line，SCL)。在一些实施例中，处理器1110可以包含多组I2C总线。处理器1110可以通过不同的I2C总线接口分别耦合触摸传感器1180K，充电器，闪光灯，摄像头1193等。例如：处理器1110可以通过I2C接口耦合触摸传感器1180K，使处理器1110与触摸传感器1180K通过I2C总线接口通信，实现终端设备的触摸功能。The I2C interface is a bidirectional synchronous serial bus, including a serial data line (SDA) and a serial clock line (SCL). In some embodiments, the processor 1110 may include multiple groups of I2C buses. The processor 1110 may be coupled to the touch sensor 1180K, the charger, the flash, the camera 1193, etc. through different I2C bus interfaces. For example, the processor 1110 may be coupled to the touch sensor 1180K through the I2C interface, so that the processor 1110 communicates with the touch sensor 1180K through the I2C bus interface to realize the touch function of the terminal device.
I2S接口可以用于音频通信。在一些实施例中，处理器1110可以包含多组I2S总线。处理器1110可以通过I2S总线与音频模块1170耦合，实现处理器1110与音频模块1170之间的通信。在一些实施例中，音频模块1170可以通过I2S接口向无线通信模块1160传递音频信号，实现通过蓝牙耳机接听电话的功能。The I2S interface can be used for audio communication. In some embodiments, the processor 1110 can include multiple groups of I2S buses. The processor 1110 can be coupled to the audio module 1170 via the I2S bus to achieve communication between the processor 1110 and the audio module 1170. In some embodiments, the audio module 1170 can transmit an audio signal to the wireless communication module 1160 via the I2S interface to achieve the function of answering a call through a Bluetooth headset.
PCM接口也可以用于音频通信，将模拟信号抽样，量化和编码。在一些实施例中，音频模块1170与无线通信模块1160可以通过PCM总线接口耦合。在一些实施例中，音频模块1170也可以通过PCM接口向无线通信模块1160传递音频信号，实现通过蓝牙耳机接听电话的功能。所述I2S接口和所述PCM接口都可以用于音频通信。The PCM interface can also be used for audio communication, sampling, quantizing and encoding analog signals. In some embodiments, the audio module 1170 and the wireless communication module 1160 can be coupled via a PCM bus interface. In some embodiments, the audio module 1170 can also transmit audio signals to the wireless communication module 1160 via the PCM interface to realize the function of answering calls via a Bluetooth headset. Both the I2S interface and the PCM interface can be used for audio communication.
UART接口是一种通用串行数据总线，用于异步通信。该总线可以为双向通信总线。它将要传输的数据在串行通信与并行通信之间转换。在一些实施例中，UART接口通常被用于连接处理器1110与无线通信模块1160。例如：处理器1110通过UART接口与无线通信模块1160中的蓝牙模块通信，实现蓝牙功能。在一些实施例中，音频模块1170可以通过UART接口向无线通信模块1160传递音频信号，实现通过蓝牙耳机播放音乐的功能。The UART interface is a universal serial data bus for asynchronous communication. The bus can be a bidirectional communication bus. It converts the data to be transmitted between serial communication and parallel communication. In some embodiments, the UART interface is generally used to connect the processor 1110 and the wireless communication module 1160. For example, the processor 1110 communicates with the Bluetooth module in the wireless communication module 1160 through the UART interface to implement the Bluetooth function. In some embodiments, the audio module 1170 can transmit an audio signal to the wireless communication module 1160 through the UART interface to implement the function of playing music through a Bluetooth headset.
MIPI接口可以被用于连接处理器1110与显示屏1194，摄像头1193等***器件。MIPI接口包括摄像头串行接口(camera serial interface，CSI)，显示屏串行接口(display serial interface，DSI)等。在一些实施例中，处理器1110和摄像头1193通过CSI接口通信，实现终端设备的拍摄功能。处理器1110和显示屏1194通过DSI接口通信，实现终端设备的显示功能。The MIPI interface can be used to connect the processor 1110 with peripheral devices such as the display screen 1194 and the camera 1193. The MIPI interface includes a camera serial interface (CSI), a display serial interface (DSI), etc. In some embodiments, the processor 1110 and the camera 1193 communicate via the CSI interface to implement the shooting function of the terminal device. The processor 1110 and the display screen 1194 communicate via the DSI interface to implement the display function of the terminal device.
GPIO接口可以通过软件配置。GPIO接口可以被配置为控制信号，也可被配置为数据信号。在一些实施例中，GPIO接口可以用于连接处理器1110与摄像头1193，显示屏1194，无线通信模块1160，音频模块1170，传感器模块1180等。GPIO接口还可以被配置为I2C接口，I2S接口，UART接口，MIPI接口等。The GPIO interface can be configured by software. The GPIO interface can be configured as a control signal or as a data signal. In some embodiments, the GPIO interface can be used to connect the processor 1110 with the camera 1193, the display 1194, the wireless communication module 1160, the audio module 1170, the sensor module 1180, etc. The GPIO interface can also be configured as an I2C interface, an I2S interface, a UART interface, a MIPI interface, etc.
USB接口1130是符合USB标准规范的接口，具体可以是Mini USB接口，Micro USB接口，USB Type C接口等。USB接口1130可以用于连接充电器为终端设备充电，也可以用于终端设备与***设 备之间传输数据。也可以用于连接耳机，通过耳机播放音频。该接口还可以用于连接其他终端设备，例如AR设备等。The USB interface 1130 is an interface that complies with USB standard specifications, and may be a Mini USB interface, a Micro USB interface, a USB Type C interface, etc. The USB interface 1130 may be used to connect a charger to charge the terminal device, or may be used to connect the terminal device to peripheral devices. It can also be used to connect headphones and play audio through them. This interface can also be used to connect other terminal devices, such as AR devices.
可以理解的是，本发明实施例示意的各模块间的接口连接关系，只是示意性说明，并不构成对终端设备的结构限定。在本申请另一些实施例中，终端设备也可以采用上述实施例中不同的接口连接方式，或多种接口连接方式的组合。It is understandable that the interface connection relationship between the modules illustrated in the embodiment of the present invention is only a schematic illustration and does not constitute a structural limitation on the terminal device. In other embodiments of the present application, the terminal device may also adopt different interface connection methods in the above embodiments, or a combination of multiple interface connection methods.
充电管理模块1140用于从充电器接收充电输入。其中，充电器可以是无线充电器，也可以是有线充电器。在一些有线充电的实施例中，充电管理模块1140可以通过USB接口1130接收有线充电器的充电输入。在一些无线充电的实施例中，充电管理模块1140可以通过终端设备的无线充电线圈接收无线充电输入。充电管理模块1140为电池1142充电的同时，还可以通过电源管理模块1141为终端设备供电。The charging management module 1140 is used to receive charging input from a charger. The charger may be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 1140 may receive charging input from a wired charger through the USB interface 1130. In some wireless charging embodiments, the charging management module 1140 may receive wireless charging input through a wireless charging coil of a terminal device. While the charging management module 1140 is charging the battery 1142, it may also power the terminal device through the power management module 1141.
电源管理模块1141用于连接电池1142，充电管理模块1140与处理器1110。电源管理模块1141接收电池1142和/或充电管理模块1140的输入，为处理器1110，内部存储器1121，外部存储器，显示屏1194，摄像头1193，和无线通信模块1160等供电。电源管理模块1141还可以用于监测电池容量，电池循环次数，电池健康状态(漏电，阻抗)等参数。在其他一些实施例中，电源管理模块1141也可以设置于处理器1110中。在另一些实施例中，电源管理模块1141和充电管理模块1140也可以设置于同一个器件中。The power management module 1141 is used to connect the battery 1142, the charging management module 1140 and the processor 1110. The power management module 1141 receives input from the battery 1142 and/or the charging management module 1140, and supplies power to the processor 1110, the internal memory 1121, the external memory, the display screen 1194, the camera 1193, and the wireless communication module 1160. The power management module 1141 can also be used to monitor parameters such as battery capacity, battery cycle number, battery health status (leakage, impedance), etc. In some other embodiments, the power management module 1141 can also be set in the processor 1110. In other embodiments, the power management module 1141 and the charging management module 1140 can also be set in the same device.
内部存储器1121可以用于存储计算机可执行程序代码，所述可执行程序代码包括指令。处理器1110通过运行存储在内部存储器1121的指令，从而执行终端设备的各种功能应用以及数据处理。内部存储器1121可以包括存储程序区和存储数据区。其中，存储程序区可存储操作***，至少一个功能所需的应用程序(比如声音播放功能，图像播放功能等)等。存储数据区可存储终端设备使用过程中所创建的数据(比如音频数据，电话本等)等。此外，内部存储器1121可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件，闪存器件，通用闪存存储器(universal flash storage，UFS)等。The internal memory 1121 can be used to store computer executable program codes, which include instructions. The processor 1110 executes various functional applications and data processing of the terminal device by running the instructions stored in the internal memory 1121. The internal memory 1121 may include a program storage area and a data storage area. Among them, the program storage area may store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc. The data storage area may store data created during the use of the terminal device (such as audio data, a phone book, etc.), etc. In addition, the internal memory 1121 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, a universal flash storage (UFS), etc.
所属领域的技术人员可以清楚地了解到，为了描述的方便和简洁，仅以上述各功能单元、模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能单元、模块完成，即将所述装置的内部结构划分成不同的功能单元或模块，以完成以上描述的全部或者部分功能。实施例中的各功能单元、模块可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中，上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。另外，各功能单元、模块的具体名称也只是为了便于相互区分，并不用于限制本申请的保护范围。上述***中单元、模块的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述或记载的部分，可以参见其它实施例的相关描述。In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.
在本申请所提供的实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的***实施例仅仅是示意性的，例如，所述模块或单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个***，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通讯连接可以是通过一些接口，装置或单元的间接耦合或通讯连接，可以是电性，机械或其它的形式。In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the system embodiments described above are merely schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单 独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may be a separate unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional unit.
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请实现上述实施例方法中的全部或部分流程，可以通过计算机程序来指令相关的硬件来完成，所述的计算机程序可存储于一计算机可读存储介质中，该计算机程序在被处理器执行时，可实现上述各个方法实施例的步骤。其中，所述计算机程序包括计算机程序代码，所述计算机程序代码可以为源代码形式、对象代码形式、可执行文件或某些中间形式等。所述计算机可读介质至少可以包括：能够将计算机程序代码携带到终端设备或终端设备的控制模块的任何实体或装置、记录介质、计算机存储器、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、电载波信号、电信信号以及软件分发介质。例如U盘、移动硬盘、磁碟或者光盘等。在某些司法管辖区，根据立法和专利实践，计算机可读介质不可以是电载波信号和电信信号。If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, which can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may at least include: any entity or device that can carry the computer program code to the terminal device or the control module of the terminal device, recording medium, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium. For example, USB flash drive, mobile hard disk, disk or optical disk. In some jurisdictions, according to legislation and patent practice, computer-readable media cannot be electric carrier signals and telecommunication signals.
最后应说明的是：以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何在本申请揭露的技术范围内的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。 Finally, it should be noted that the above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (17)

  1. 一种充电电路，其特征在于，所述充电电路包括：控制模块、充电模块、第一快充模块、第二快充模块、第一检测模块、第二检测模块和第一开关器件；A charging circuit, characterized in that the charging circuit comprises: a control module, a charging module, a first fast charging module, a second fast charging module, a first detection module, a second detection module and a first switch device;
    所述第一快充模块和所述第一检测模块均与电池组中的第一电池连接，所述第一检测模块还与所述控制模块相连接；The first fast charging module and the first detection module are both connected to the first battery in the battery pack, and the first detection module is also connected to the control module;
    所述第二快充模块和所述第二检测模块均与所述电池组中的第二电池连接，所述第二检测模块还与所述控制模块相连接；The second fast charging module and the second detection module are both connected to the second battery in the battery pack, and the second detection module is also connected to the control module;
    所述第一开关器件连接在所述充电模块和所述第一电池之间，所述充电模块与所述第二电池连接；The first switch device is connected between the charging module and the first battery, and the charging module is connected to the second battery;
    所述控制模块还分别与所述充电模块、所述第一快充模块、所述第二快充模块和所述第一开关器件连接，用于根据所述第一检测模块检测的所述第一电池两端的电压和所述第二检测模块检测的所述第二电池两端的电压，控制所述充电模块、所述第一快充模块、所述第二快充模块和所述第一开关器件的导通或关断。The control module is also respectively connected to the charging module, the first fast charging module, the second fast charging module and the first switching device, and is used to control the on or off of the charging module, the first fast charging module, the second fast charging module and the first switching device according to the voltage across the first battery detected by the first detection module and the voltage across the second battery detected by the second detection module.
  2. 根据权利要求1所述的充电电路，其特征在于，所述充电电路还包括：第二开关器件；The charging circuit according to claim 1, characterized in that the charging circuit further comprises: a second switching device;
    所述第二开关器件连接在所述充电模块与所述第二电池之间。The second switch device is connected between the charging module and the second battery.
  3. 根据权利要求1或2所述的充电电路，其特征在于，所述第一开关器件集成在所述充电模块内。The charging circuit according to claim 1 or 2, characterized in that the first switching device is integrated in the charging module.
  4. 根据权利要求2所述的充电电路，其特征在于，所述第一开关器件和所述第二开关器件均集成在所述充电模块内。The charging circuit according to claim 2, characterized in that the first switching device and the second switching device are both integrated in the charging module.
  5. 根据权利要求3或4所述的充电电路，其特征在于，所述第一检测模块和所述第二检测模块均集成在所述充电模块中；The charging circuit according to claim 3 or 4, characterized in that the first detection module and the second detection module are both integrated in the charging module;
    所述第一检测模块，用于向所述控制模块发送检测的所述第一电池两端的电压；The first detection module is used to send the detected voltage across the first battery to the control module;
    所述第二检测模块，用于向所述控制模块发送检测的所述第二电池两端的电压。The second detection module is used to send the detected voltage across the second battery to the control module.
  6. 根据权利要求1至4任一所述的充电电路，其特征在于，所述第一检测模块集成在所述第一快充模块内，所述第二检测模块集成在所述第二快充模块内。The charging circuit according to any one of claims 1 to 4 is characterized in that the first detection module is integrated in the first fast charging module, and the second detection module is integrated in the second fast charging module.
  7. 根据权利要求1至6任一所述的充电电路，其特征在于，所述充电电路还包括：第三快充模块、第三检测模块和第三开关器件；The charging circuit according to any one of claims 1 to 6, characterized in that the charging circuit further comprises: a third fast charging module, a third detection module and a third switch device;
    所述第三快充模块和所述第三检测模块均与所述电池组中的第三电池连接，所述第三检测模块还与所述控制模块相连接；The third fast charging module and the third detection module are both connected to the third battery in the battery pack, and the third detection module is also connected to the control module;
    所述第三开关器件连接在所述充电模块和所述第三电池之间。The third switch device is connected between the charging module and the third battery.
  8. 一种充电方法，其特征在于，应用于充电电路，所述充电电路包括：充电模块、第一快充模块、第二快充模块和第一开关器件，所述充电模块用于对电池组中的第一电池和第二电池充电，所述第一开关器件串联连接在所述充电模块和所述第一电池之间，所述第一快充模块与所述第一电池连接，所述第二快充模块与所述第二电池连接；A charging method, characterized in that it is applied to a charging circuit, the charging circuit comprising: a charging module, a first fast charging module, a second fast charging module and a first switching device, the charging module is used to charge a first battery and a second battery in a battery pack, the first switching device is connected in series between the charging module and the first battery, the first fast charging module is connected to the first battery, and the second fast charging module is connected to the second battery;
    所述充电方法包括：The charging method comprises:
    获取所述第一电池两端的第一电压和所述第二电池两端的第二电压；Acquire a first voltage across the first battery and a second voltage across the second battery;
    根据所述第一电压和所述第二电压，调整所述第一开关器件的状态，使得所述充电电路的电路结构发生变化，并通过所述第一快充模块为所述第一电池充电、通过所述第二快充模块为所述第二电池充电。According to the first voltage and the second voltage, the state of the first switching device is adjusted so that the circuit structure of the charging circuit changes, and the first battery is charged through the first fast charging module and the second battery is charged through the second fast charging module.
  9. 根据权利要求8所述的方法，其特征在于，所述根据所述第一电压和所述第二电压，调整所述第一开关器件的状态，包括：The method according to claim 8, characterized in that adjusting the state of the first switching device according to the first voltage and the second voltage comprises:
    将所述第一电压和所述第二电压，分别与预先设置的第一电压阈值进行比较；Comparing the first voltage and the second voltage with a preset first voltage threshold respectively;
    若所述第一电压和所述第二电压均大于所述第一电压阈值，则调整所述第一开关器件的状态；If the first voltage and the second voltage are both greater than the first voltage threshold, adjusting the state of the first switch device;
    若所述第一电压和所述第二电压中的至少一个小于或等于所述第一电压阈值，则保持所述第一开关器件的状态不变。If at least one of the first voltage and the second voltage is less than or equal to the first voltage threshold, the state of the first switching device is maintained unchanged.
  10. 根据权利要求8所述的方法，其特征在于，在所述通过所述第一快充模块为所述第一电池充电、通过所述第二快充模块为所述第二电池充电之后，所述方法还包括：The method according to claim 8, characterized in that after charging the first battery through the first fast charging module and charging the second battery through the second fast charging module, the method further comprises:
    获取所述第一电池两端的所述第一电压和所述第二电池两端的所述第二电压，得到所述第一电压与所述第二电压之间的电压差值；Acquire the first voltage across the first battery and the second voltage across the second battery to obtain a voltage difference between the first voltage and the second voltage;
    根据所述电压差值和预先设置的第二电压阈值之间的大小关系，对所述第一快充模块和/或所述第 二快充模块输出的电流进行调整。According to the magnitude relationship between the voltage difference and the preset second voltage threshold, the first fast charging module and/or the first fast charging module are Second, adjust the current output by the fast charging module.
  11. 根据权利要求10所述的方法，其特征在于，所述根据所述电压差值和预先设置的第二电压阈值之间的大小关系，对所述第一快充模块和/或所述第二快充模块输出的电流进行调整，包括：The method according to claim 10, characterized in that the adjusting the current output by the first fast charging module and/or the second fast charging module according to the magnitude relationship between the voltage difference and a preset second voltage threshold comprises:
    若所述电压差值小于或等于所述第二电压阈值，则对所述第一快充模块和/或所述第二快充模块输出的电流保持不变；If the voltage difference is less than or equal to the second voltage threshold, the current output by the first fast charging module and/or the second fast charging module remains unchanged;
    若所述电压差值大于所述第二电压阈值、且所述第一电压大于所述第二电压，则降低所述第一快充模块输出的电流，和/或，提高所述第二快充模块输出的电流；If the voltage difference is greater than the second voltage threshold and the first voltage is greater than the second voltage, reducing the current output by the first fast charging module and/or increasing the current output by the second fast charging module;
    若所述电压差值大于所述第二电压阈值、且所述第一电压小于所述第二电压，则提高所述第一快充模块输出的电流，和/或，降低所述第二快充模块输出的电流；If the voltage difference is greater than the second voltage threshold and the first voltage is less than the second voltage, increasing the current output by the first fast charging module and/or reducing the current output by the second fast charging module;
    其中，所述第一电压和所述第二电压之间的大小关系是在计算所述电压差值时确定的。The magnitude relationship between the first voltage and the second voltage is determined when calculating the voltage difference.
  12. 根据权利要求8所述的方法，其特征在于，在所述通过所述第一快充模块为所述第一电池充电、通过所述第二快充模块为所述第二电池充电之后，所述方法还包括：The method according to claim 8, characterized in that after charging the first battery through the first fast charging module and charging the second battery through the second fast charging module, the method further comprises:
    获取所述第一电池两端的所述第一电压和所述第二电池两端的所述第二电压，并将所述第一电压和所述第二电压，分别与预先设置的第三电压阈值进行比较；Acquire the first voltage across the first battery and the second voltage across the second battery, and compare the first voltage and the second voltage with a preset third voltage threshold, respectively;
    若所述第一电压和所述第二电压均大于或等于预先设置的第三电压阈值，则通过所述第一快充模块采用恒压充电的方式为所述第一电池充电，并通过所述第二快充模块采用恒压充电的方式为所述第二电池充电。If the first voltage and the second voltage are both greater than or equal to a preset third voltage threshold, the first battery is charged by the first fast charging module using a constant voltage charging method, and the second battery is charged by the second fast charging module using a constant voltage charging method.
  13. 根据权利要求12所述的方法，其特征在于，所述通过所述第一快充模块采用恒压充电的方式为所述第一电池充电，并通过所述第二快充模块采用恒压充电的方式为所述第二电池充电之后，所述方法还包括：The method according to claim 12 is characterized in that after charging the first battery by constant voltage charging through the first fast charging module and charging the second battery by constant voltage charging through the second fast charging module, the method further comprises:
    获取所述第一电池对应的第一充电电流和所述第二电池对应的第二充电电流；Acquire a first charging current corresponding to the first battery and a second charging current corresponding to the second battery;
    根据所述第一充电电流和所述第二充电电流，结合预先设置的电流阈值，再次对所述第一开关器件的状态进行调整，并通过所述充电模块为所述第一电池和所述第二电池同时充电，直至充电完毕。According to the first charging current and the second charging current, combined with a preset current threshold, the state of the first switching device is adjusted again, and the first battery and the second battery are charged simultaneously through the charging module until charging is completed.
  14. 根据权利要求13所述的方法，其特征在于，所述根据所述第一充电电流和所述第二充电电流，结合预先设置的电流阈值，再次对所述第一开关器件的状态进行调整，包括：The method according to claim 13, characterized in that the step of adjusting the state of the first switching device again according to the first charging current and the second charging current in combination with a preset current threshold comprises:
    根据所述第一充电电流和所述第二充电电流进行计算，得到总充电电流；Calculate the total charging current according to the first charging current and the second charging current;
    比较所述总充电电流和所述电流阈值之间的大小关系；Comparing the total charging current with the current threshold;
    若所述总充电电流大于所述电流阈值，则继续通过所述第一快充模块和所述第二快充模块，采用恒压充电的方式分别为所述第一电池和所述第二电池充电；If the total charging current is greater than the current threshold, the first battery and the second battery are charged respectively by the first fast charging module and the second fast charging module in a constant voltage charging manner;
    若所述总充电电流小于或等于所述电流阈值，则再次对所述第一开关器件的状态进行调整。If the total charging current is less than or equal to the current threshold, the state of the first switching device is adjusted again.
  15. 一种充电***，其特征在于，所述充电***包括：终端设备和适配器，所述终端设备包括如权利要求1至7任一项所述的充电电路；A charging system, characterized in that the charging system comprises: a terminal device and an adapter, wherein the terminal device comprises the charging circuit according to any one of claims 1 to 7;
    所述适配器通过所述终端设备的充电端口，与所述终端设备的充电电路连接；The adapter is connected to the charging circuit of the terminal device through the charging port of the terminal device;
    所述终端设备或所述充电电路采用如权利要求8至14中任一项所述的充电方法，对所述终端设备的电池组进行充电。The terminal device or the charging circuit adopts the charging method according to any one of claims 8 to 14 to charge the battery pack of the terminal device.
  16. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求8至14中任一项所述的充电方法。A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the charging method according to any one of claims 8 to 14 is implemented.
  17. 一种芯片***，其特征在于，所述芯片***包括存储器和处理器，所述处理器执行所述存储器中存储的计算机程序，以实现如权利要求8至14中任一项所述的充电方法。 A chip system, characterized in that the chip system includes a memory and a processor, and the processor executes a computer program stored in the memory to implement the charging method as described in any one of claims 8 to 14.
PCT/CN2023/121685 2022-10-31 2023-09-26 Charging circuit, charging method, charging system, storage medium and chip system WO2024093587A1 (en)

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Citations (4)

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CN106374582A (en) * 2016-10-27 2017-02-01 努比亚技术有限公司 Charging method and device
CN111697658A (en) * 2020-06-22 2020-09-22 联想(北京)有限公司 Electronic device, control method, and storage medium
CN113937837A (en) * 2020-07-14 2022-01-14 Oppo广东移动通信有限公司 Charging circuit and electronic device
CN115085302A (en) * 2021-03-15 2022-09-20 荣耀终端有限公司 Double-battery charging and discharging circuit, control method and electronic equipment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106374582A (en) * 2016-10-27 2017-02-01 努比亚技术有限公司 Charging method and device
CN111697658A (en) * 2020-06-22 2020-09-22 联想(北京)有限公司 Electronic device, control method, and storage medium
CN113937837A (en) * 2020-07-14 2022-01-14 Oppo广东移动通信有限公司 Charging circuit and electronic device
CN115085302A (en) * 2021-03-15 2022-09-20 荣耀终端有限公司 Double-battery charging and discharging circuit, control method and electronic equipment

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