CN107612104B - Control method and device for charging of U disk charger - Google Patents
Control method and device for charging of U disk charger Download PDFInfo
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- CN107612104B CN107612104B CN201711087140.7A CN201711087140A CN107612104B CN 107612104 B CN107612104 B CN 107612104B CN 201711087140 A CN201711087140 A CN 201711087140A CN 107612104 B CN107612104 B CN 107612104B
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Abstract
The invention provides a control method and a control device for charging a U disk charger, which are used for charging the U disk charger by accessing an external power supply, wherein the U disk charger at least comprises a main controller, a charge-discharge module, a data transmission module and a monitoring circuit for monitoring whether a load access and data transmission request exists; the main controller is respectively connected with the charge-discharge module, the data transmission module and the monitoring circuit; when the external power supply is connected with the USB flash disk charger, the current of the external power supply is connected; the main controller monitors whether a load access and data transmission request exists or not through a monitoring circuit; controlling data transmission of the data transmission module according to the monitoring result; and/or controlling a charge-discharge module to charge the load or the USB flash disk charger according to the monitoring result; the control method and the control device for charging the U disk charger baby are convenient for controlling data transmission and supplying power to the load and the U disk charger baby.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to a control method and device for charging a USB flash disk charger.
Background
At present, the charger technology and the USB flash disk technology are quite mature, and the circuit part of the charger technology also belongs to a common circuit; however, the power bank and the usb disk are both used as independent products, and for the end user, the power bank (standby power supply) and the usb disk (standby expansion memory) need to be equipped respectively, and when the power bank is used integrally, the problem that it is inconvenient to control data transmission and supply power to the load simultaneously is faced.
Disclosure of Invention
The invention mainly aims to provide a control method and a control device for charging a USB flash disk charger, which are convenient for supplying power to a load and controlling data transmission.
The invention provides a control method for charging a U disk charger, which is used for charging the U disk charger by accessing an external power supply into the U disk charger, wherein the U disk charger at least comprises a main controller, a charging and discharging module, a data transmission module and a monitoring circuit for monitoring whether a load access and data transmission request exists; the main controller is respectively connected with the charge-discharge module, the data transmission module and the monitoring circuit;
the control method for charging the U disk charger baby comprises the following steps:
when the external power supply is connected with the USB flash disk charger, the current of the external power supply is connected;
the main controller monitors whether a load access and data transmission request exists or not through a monitoring circuit;
controlling data transmission of the data transmission module according to the monitoring result; and/or controlling the charge-discharge module to charge the load or the USB flash disk charger according to the monitoring result.
Further, the charge and discharge module comprises a power supply circuit, a charge and discharge management circuit and a battery cell; the data transmission module comprises a data transmission circuit, a flash memory and a USB interface circuit; the USB interface circuit comprises a USB input interface circuit and a USB output interface circuit; the charging and discharging management circuit comprises a charging management circuit and a discharging management circuit;
the main controller is connected with the flash memory and is connected to the USB interface circuit through the power circuit and the data transmission circuit; the main controller controls the flash memory and the USB interface circuit to transmit data through the data transmission circuit;
the charging management circuit and the discharging management circuit are respectively connected with the main controller and the battery cell, the charging management circuit is connected with the USB input interface circuit, and the discharging management circuit is connected with the USB output interface circuit; the USB input interface circuit inputs current to the charging management circuit to charge the battery cell, and the master controller controls the discharging management circuit to output the current of the battery cell to the USB output interface circuit.
Further, the step of controlling the charge-discharge module to charge the load or the usb flash drive charger according to the monitoring result includes:
when the situation that a load is connected is monitored, the charging and discharging module is controlled to charge the load through the power circuit, and the USB flash disk charger is disconnected from charging; when no load access is monitored, the charging and discharging module is controlled to charge the USB flash disk charger through the power circuit.
Further, when monitoring that a load is connected, the power supply circuit controls the charging and discharging module to charge the load, and the USB flash disk charger is disconnected after the step of charging the USB flash disk charger includes:
monitoring whether the load electric quantity is full;
if the USB flash disk is full of the power supply circuit, the charging and discharging module is controlled by the power supply circuit to charge the USB flash disk charger, and the load is disconnected to charge.
Further, after the step of controlling the charging and discharging module to charge the usb flash disk charger through the power circuit, the method includes:
monitoring whether the U disk charger is full of electricity;
if the USB flash disk charger is full of the USB flash disk charger, the charging and discharging module is controlled to be disconnected to charge the USB flash disk charger.
Further, the U disk charger baby also comprises a charging indicator light;
after the step of controlling the charging and discharging module to charge the USB flash disk charger through the power circuit, the method comprises the following steps of:
and starting a charging indicator lamp to display the charging state of the USB flash disk charger.
Further, the charge and discharge management circuit further comprises a wireless coil circuit;
when external power source inserts the USB flash disk treasured that charges, the step of the electric current of inserting external power source includes:
the main controller monitors whether an external power supply is connected to the USB input interface circuit or not through a monitoring circuit;
if yes, the USB input interface circuit is connected with current and the wireless coil circuit is disconnected from receiving the current; if not, the current is induced through the wireless coil module.
Further, the step of controlling data transmission of the data transmission module according to the monitoring result includes:
when the load access is monitored, monitoring whether the load has a data request; if no load access is monitored, monitoring whether an external power supply has a data request;
and if so, controlling the data transmission circuit to start data transmission.
Furthermore, the USB flash disk power bank also comprises a key switch for starting data transmission; the monitoring load is provided with a data request; and the step of monitoring whether the external power supply has a data request comprises:
monitoring whether the key switch starts data transmission or not through a monitoring circuit;
the monitoring circuit is used for monitoring whether the D + and D-interfaces of the USB interface circuit are detected or not.
The invention also provides a control device for charging the USB flash disk charger, which is used for connecting an external power supply into the USB flash disk charger for charging, wherein the USB flash disk charger at least comprises a main controller, a charging and discharging module, a data transmission module and a monitoring circuit for monitoring whether a load access and data transmission request exists; the main controller is respectively connected with the charge-discharge module, the data transmission module and the monitoring circuit;
the device comprises:
the access unit is used for accessing the current of the external power supply when the external power supply is accessed into the USB flash disk charger;
the monitoring unit is used for monitoring whether a load access and data transmission request exists through a monitoring circuit;
the control unit is used for controlling the data transmission of the data transmission module according to the monitoring result; and/or controlling the charge-discharge module to charge the load or the USB flash disk charger according to the monitoring result.
The control method and the control device for charging the U disk charger bank have the following beneficial effects:
the control method and the control device for charging the USB flash disk charger are used for accessing an external power supply into the USB flash disk charger for charging, wherein the USB flash disk charger at least comprises a main controller, a charging and discharging module, a data transmission module and a monitoring circuit for monitoring whether a load access and data transmission request exists or not; the main controller is respectively connected with the charge-discharge module, the data transmission module and the monitoring circuit; when the external power supply is connected with the USB flash disk charger, the current of the external power supply is connected; the main controller monitors whether a load access and data transmission request exists or not through a monitoring circuit; controlling data transmission of the data transmission module according to the monitoring result; and/or controlling a charge-discharge module to charge the load or the USB flash disk charger according to the monitoring result; when being convenient for supply power to load and USB flash disk treasured that charges, control data transmission.
Drawings
Fig. 1 is a circuit block diagram of a control circuit of a usb flash drive charger according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating steps of a control method for charging a usb flash drive charger according to an embodiment of the present invention;
fig. 3 is a block diagram of a control device during charging of the usb flash drive charger according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The invention provides a USB flash disk charger in one embodiment, which comprises a control circuit; the control circuit of the USB flash disk charger at least comprises a main controller 100, a charge-discharge module, a data transmission module and a monitoring circuit for monitoring whether a load access and data transmission request exists; the main controller 100 is respectively connected with the charge-discharge module, the data transmission module and the monitoring circuit.
Specifically, referring to fig. 1, a circuit block diagram of a control circuit of the usb flash drive charger according to an embodiment of the present invention is shown.
An embodiment of the present invention provides a control circuit of a USB flash disk charger, where the charge/discharge module includes a charge/discharge management circuit and a battery cell 140, and the data transmission module includes a power circuit 110, a data transmission circuit, a flash memory 120, and a USB interface circuit; the USB interface circuit includes a USB input interface circuit 131 and a USB output interface circuit 132; the charge and discharge management circuit comprises a charge management circuit 180 and a discharge management circuit 190;
the main controller 100 is connected to the flash memory 120, and is connected to the USB interface circuit through the power circuit 110 and the data transmission circuit; the master controller 100 controls the flash memory 120 and the USB interface circuit to perform data transmission through a data transmission circuit; the USB interface circuit comprises a USB interface for data transmission and a power supply.
The charging management circuit and the discharging management circuit are respectively connected with the main controller 100, the battery cell 140 and the USB interface circuit; the charging management circuit is connected with the USB input interface circuit 131, and the discharging management circuit is connected with the USB output interface circuit 132; the USB input interface circuit 131 inputs a current to the charging management circuit to perform charging control on the battery cell 140, and the master controller 100 controls the discharging management circuit to output the current of the battery cell 140 to the USB output interface circuit 132. The USB interface circuit comprises a Standard-USB/Micro-USB/Lightning/type-c interface.
The USB input interface circuit 131 not only inputs current to the charging management circuit 180 to charge the battery cell 140, but also is a data transmission path, and can perform charging and data transmission simultaneously; the discharge management circuit 190 controls the battery cell 140 to output current to the USB output interface circuit 132, and the USB output interface circuit 132 is also a data transmission path and can perform discharge and data transmission simultaneously; the master controller 100 controls the charging management circuit 180 and the discharging management circuit 190, and also controls the data transmission management of the USB input interface circuit 131 and the USB output interface circuit 132.
In this embodiment, the circuit part for data transmission and the circuit part for charging and discharging are integrated together, and charging and discharging and data transmission are performed through the USB interface, so that the USB interface can be used as both a mobile power source and a storage device, the number of expansion devices used by a user can be reduced, and the number of charging lines and data lines used by the user can be reduced (only one charging data line is needed).
In this embodiment, the control circuit further includes a clock circuit 150 and a protection circuit 170, wherein the clock circuit 150 is connected to the master 100; the protection circuit 170 is connected to the master 100.
In this embodiment, the control circuit further includes an indicator light circuit 160, the indicator light circuit 160 is connected to the main controller 100, and the indicator light circuit 160 includes an indicator light for indicating the electric quantity and the charging and discharging states.
In this embodiment, the control circuit further includes a key circuit, and the key circuit is connected to the main controller 100 and the external function key. The function keys may be disposed on the housing.
In the present embodiment, the battery cell 140 is a hard-pack battery cell 140 (cylindrical lithium battery cell 140) or a soft-pack battery cell 140 (polymer lithium ion battery cell 140); the Flash memory 120 is a Flash, an SD card or a TF card; the capacity of the flash memory 120 can be set freely.
In this embodiment, the charge and discharge management circuit includes a charge management circuit 180 and a discharge management circuit 190; the USB interface circuit includes a USB input interface circuit 131 and a USB output interface circuit 132; the USB input interface circuit 131 is used for power input and data input and output, and the USB output interface circuit 132 is used for power output and data input and output.
The USB input interface circuit 131 is connected to the main controller 100 through the power circuit 110 and a data transmission circuit, and the USB output interface circuit 132 is connected to the main controller 100 through the data transmission circuit for data transmission;
the charging management circuit 180 is respectively connected to the USB input interface circuit 131, the master controller 100, and the battery cell 140, and is configured to charge the battery cell 140; the discharge management circuit 190 is respectively connected to the master controller 100, the battery cell 140, and the USB output interface circuit 132, and is configured to discharge electricity to the battery cell 140.
In this embodiment, the charging and discharging management circuit further includes a wireless charging coil 200 for wireless charging;
the wireless charging coil 200 is connected to the master controller 100 and the charging management circuit 180, respectively.
In this embodiment, the control circuit further includes a monitoring circuit 210, where the monitoring circuit 210 is connected to the main controller 100, and is mainly used for monitoring the induced current of the wireless charging coil, and monitoring a signal that the USB input interface circuit 131 is connected to a power supply and/or the USB output interface circuit 132 is connected to a load (a mobile phone or a tablet computer, etc.); the capacity of the battery cell 140 can also be monitored, and whether a function key is pressed down or not can be monitored for the key circuit.
Preferably, in the above embodiment, the electronic device may further include a control circuit board, the control circuit board may be welded with the Flash, or may be provided with a mounting card slot for correspondingly mounting an SD card or a TF card; the master controller 100, the power circuit 110, the data transmission circuit, the flash memory 120, the USB interface circuit, the charge and discharge management circuit, the battery cell 140, the monitoring circuit 210, the clock circuit 150, the protection circuit 170, the indicator light circuit 160, and the key circuit may be disposed on the control circuit board. It can be understood that, for the specific implementation of the above circuits, those skilled in the art can implement the above circuits by using the prior art (for example, the circuits existing in the usb disk and the charger in the prior art) and the common general knowledge, and details of the implementation are not described in this embodiment.
The invention further provides a U disk charger, which comprises a shell and a control circuit of any one of the U disk charger, and also comprises the control circuit board, wherein the control circuit board is arranged in the shell, and the control circuit is arranged on the control circuit board in the shell; the shell is provided with an opening corresponding to the USB interface circuit.
The shell is also provided with a key opening corresponding to the key circuit, and the opening is provided with a corresponding functional key.
The shell is also provided with an indicator light opening corresponding to the indicator light circuit, and the corresponding indicator light is arranged at the opening.
Further, the housing is configured to fit a shell of a mobile phone. And the Micro-USB/lighting/type-C male connector is arranged inside the mobile phone, and can be directly inserted into a Micro-USB/lighting/type-C interface of the mobile phone or the tablet computer to charge the mobile phone or the tablet computer and transmit data.
In summary, the USB flash drive charger and the control circuit thereof provided in the embodiments of the present invention include a main controller 100, a power circuit 110, a data transmission circuit, a flash memory 120, a USB interface circuit, a charging and discharging management circuit, a monitoring circuit 210, an indicator light circuit 160, a protection circuit 170, a wireless charging coil 200, and a battery cell 140; the main controller 100 is connected to the flash memory 120, and is connected to the USB interface circuit through the power circuit 110 and the data transmission circuit, respectively; the master controller 100 controls the flash memory 120 and the USB interface circuit to perform data transmission through a data transmission circuit; the charge and discharge management circuit is respectively connected with the master controller 100, the battery cell 140 and the USB interface circuit; the USB input interface circuit 131 inputs a current to the charging management circuit 180 to charge the battery cell 140, and the master controller 100 controls the discharging management circuit 190 to output the current of the battery cell 140 to the USB output interface circuit 132; the USB flash disk charger and the control circuit thereof provided by the embodiment of the invention can be used as a mobile power supply and a storage device, and can be used for charging and discharging and data transmission without mutual interference.
Referring to fig. 2, an embodiment of the present invention provides a control method for a usb flash drive charger during charging, where the control method is used for accessing an external power source to the usb flash drive charger in the foregoing embodiment for charging, where the usb flash drive charger at least includes a main controller 100, a charge-discharge module, a data transmission module, and a monitoring circuit for monitoring whether a load access request and a data transmission request exist; the main controller 100 is respectively connected with the charge-discharge module, the data transmission module and the monitoring circuit;
the control method for charging the U disk charger baby comprises the following steps:
step S1, when the external power supply is connected to the USB flash disk charger, the current of the external power supply is connected;
step S2, the main controller 100 monitors whether there is a request for load access and data transmission through the monitoring circuit;
step S3, controlling the data transmission of the data transmission module according to the monitoring result; and/or controlling the charge-discharge module to charge the load or the USB flash disk charger according to the monitoring result.
In the embodiment, whether a load access and data transmission request exists is monitored through a monitoring circuit, and then data transmission of a data transmission module is controlled according to a monitoring result; and/or the charging and discharging module is controlled to charge the load or the USB flash disk charging bank according to the monitoring result, and when the charging bank and the USB flash disk are integrated, data transmission and power supply to the load are conveniently controlled at the same time.
When an external power supply (a computer USB interface, a power supply interface, a wireless charging power supply and the like) is connected to the USB flash disk charging device for charging, if the USB flash disk charging device is also connected with other loads, the priority level of the external power supply for charging the loads should be set. In this embodiment, it is set that charging the load is prior to charging the usb flash disk charger.
In this embodiment, the step S3 of controlling the charge-discharge module to charge the load or the usb flash drive charger according to the monitoring result specifically includes:
when the situation that a load is connected is monitored, the power circuit 110 controls the charging and discharging module to charge the load, and the USB flash disk charger is disconnected from charging; when no load access is monitored, the charging and discharging module is controlled to charge the U disk charger through the power circuit 110.
Further, when it is monitored that a load is connected, after the step of controlling the charging and discharging module to charge the load and disconnecting the charging of the usb flash disk charger through the power circuit 110, the method includes:
monitoring whether the load electric quantity is full; when the load is charged, if the load is full, the signal fed back by the load can be received to judge that the load is full of electric quantity.
If the USB flash disk is fully charged, the charging and discharging module is controlled to charge the USB flash disk charger through the power circuit 110, and the charging of the load is cut off. And if the load is not fully charged, the charging and discharging module continues to charge the load until the load is fully charged.
Further, after the step of controlling the charging and discharging module to charge the usb flash drive charger through the power circuit 110, the method includes:
monitoring whether the U disk charger is full of electricity;
if the USB flash disk charger is full, the charging and discharging module is controlled to be disconnected to charge the USB flash disk charger; and if the USB flash disk is not fully charged, the charging and discharging module continues to charge the USB flash disk charger until the USB flash disk charger is fully charged.
Further, the U disk charger baby also comprises a charging indicator light;
after the step of controlling the charging and discharging module to charge the usb flash disk charger through the power circuit 110, the method includes:
and starting a charging indicator lamp to display the charging state of the USB flash disk charger.
Further, the charge and discharge management circuit further includes a wireless coil circuit 200; when the external power supply is connected to the U disk charger, the step S1 of connecting the current of the external power supply comprises:
step S1a, the main controller 100 monitors whether an external power source is connected to the USB input interface circuit 131 through a monitoring circuit;
step S1b, if yes, switching in current through the USB input interface circuit 131 and disconnecting the wireless coil circuit 200 from receiving current; if not, an electric current is induced through the wireless coil module 200.
Further, the step S3 of controlling data transmission of the data transmission module according to the monitoring result includes:
step S3a, when monitoring that a load is accessed, monitoring whether the load has a data request; if no load access is monitored, monitoring whether an external power supply has a data request;
and step S3b, if the request is received, controlling the data transmission circuit to start data transmission. When the computer and the like are connected into the USB flash disk charging treasure through the USB data line, a handshaking signal can be sent, the connecting circuit and the USB flash disk charging treasure can be detected, and whether data transmission is needed between the computer and the USB flash disk charging treasure can be detected.
Specifically, the USB flash disk power bank further comprises a key switch for starting data transmission; the monitoring load is provided with a data request; and the step of monitoring whether the external power supply has a data request comprises:
a. monitoring whether the key switch starts data transmission or not through a monitoring circuit; and monitoring whether the key switch starts data transmission or not through a monitoring circuit. A function switch is arranged on the USB flash disk charger, data transmission is controlled to be turned on and off, and the monitoring circuit monitors whether the key is pressed down to judge whether the data transmission is turned on.
b. The monitoring circuit is used for monitoring whether the D + and D-interfaces of the USB interface circuit are detected or not.
The master controller monitors whether the D + and D-interfaces of the USB are detected through the monitoring circuit so as to judge whether a data transmission request exists; if the data is detected, data transmission is started, and if the data is not detected, the data transmission is not started.
Referring to fig. 3, in another embodiment of the present invention, a control device for a usb flash drive charger during charging is further provided, where the control device is used for an external power supply to access the usb flash drive charger for charging, and the usb flash drive charger at least includes a main controller 100, a charging and discharging module, a data transmission module, and a monitoring circuit for monitoring whether a load access request and a data transmission request exist; the main controller 100 is respectively connected with the charge-discharge module, the data transmission module and the monitoring circuit;
the device comprises:
the access unit 10 is used for accessing the current of the external power supply when the external power supply is accessed to the USB flash disk charger;
a monitoring unit 20, configured to monitor whether there is a load access and data transmission request through a monitoring circuit;
a control unit 30 for controlling data transmission of the data transmission module according to the monitoring result; and/or controlling the charge-discharge module to charge the load or the USB flash disk charger according to the monitoring result.
In the embodiment, whether a load access and data transmission request exists is monitored through a monitoring circuit, and then data transmission of a data transmission module is controlled according to a monitoring result; and/or the charging and discharging module is controlled to charge the load or the USB flash disk charging bank according to the monitoring result, and when the charging bank and the USB flash disk are integrated, data transmission and power supply to the load are conveniently controlled at the same time.
When an external power supply (a computer USB interface, a power supply interface, a wireless charging power supply and the like) is connected to the USB flash disk charging device for charging, if the USB flash disk charging device is also connected with other loads, the priority level of the external power supply for charging the loads should be set. In this embodiment, it is set that charging the load is prior to charging the usb flash disk charger.
For specific implementation of the access unit 10, the monitoring unit 20, and the control unit 30 in the embodiment of the present invention, please refer to the above embodiments, which will not be described herein again.
In summary, the control method and apparatus for charging a usb disk charger provided in the embodiments of the present invention are used for an external power source to access the usb disk charger for charging, where the usb disk charger at least includes a main controller 100, a charge-discharge module, a data transmission module, and a monitoring circuit for monitoring whether there is a request for load access and data transmission; the main controller 100 is respectively connected with the charge-discharge module, the data transmission module and the monitoring circuit; the master controller 100 monitors whether a load access and/or data transmission request exists through a monitoring circuit; controlling data transmission of the data transmission module according to the monitoring result; and/or controlling a charge-discharge module to charge the load or the USB flash disk charger according to the monitoring result; facilitating simultaneous control of data transmission and powering of the load.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A control method for charging a U disk charger is used for an external power supply to access the U disk charger for charging, and is characterized in that the U disk charger at least comprises a main controller, a charging and discharging module, a data transmission module and a monitoring circuit for monitoring whether a load access and data transmission request exists or not; the main controller is respectively connected with the charge-discharge module, the data transmission module and the monitoring circuit; the data transmission module comprises a USB interface circuit, and the USB interface circuit comprises a USB input interface circuit and a USB output interface circuit;
the control method for charging the U disk charger baby comprises the following steps:
when the external power supply is connected with the USB flash disk charger, the current of the external power supply is connected;
the main controller monitors whether a load access and data transmission request exists or not through a monitoring circuit;
controlling data transmission of the data transmission module according to the monitoring result; and/or controlling a charge-discharge module to charge the load or the USB flash disk charger according to the monitoring result; wherein, the step of controlling the data transmission of the data transmission module according to the monitoring result comprises:
when monitoring the signal of the load accessed by the USB output interface circuit, monitoring whether the load has a data request; if the signal that the USB input interface circuit is connected to the external power supply is monitored, whether the external power supply has a data request is monitored;
and if so, controlling the data transmission circuit to start data transmission.
2. The control method for charging the U-disk charger according to claim 1, wherein the charge-discharge module comprises a power supply circuit, a charge-discharge management circuit and a battery cell; the data transmission module comprises a data transmission circuit, a flash memory and a USB interface circuit; the USB interface circuit comprises a USB input interface circuit and a USB output interface circuit; the charging and discharging management circuit comprises a charging management circuit and a discharging management circuit;
the main controller is connected with the flash memory and is connected to the USB interface circuit through the power circuit and the data transmission circuit; the main controller controls the flash memory and the USB interface circuit to transmit data through the data transmission circuit;
the charging management circuit and the discharging management circuit are respectively connected with the main controller and the battery cell, the charging management circuit is connected with the USB input interface circuit, and the discharging management circuit is connected with the USB output interface circuit; the USB input interface circuit inputs current to the charging management circuit to charge the battery cell, and the master controller controls the discharging management circuit to output the current of the battery cell to the USB output interface circuit.
3. The method for controlling the charging of the U-disk charger according to claim 2, wherein the step of controlling the charging and discharging module to charge the load or the U-disk charger according to the monitoring result comprises:
when the situation that a load is connected is monitored, the charging and discharging module is controlled to charge the load through the power circuit, and the USB flash disk charger is disconnected from charging; when no load access is monitored, the charging and discharging module is controlled to charge the USB flash disk charger through the power circuit.
4. The method for controlling the U-disk charger baby during charging according to claim 3, wherein after the step of controlling the charging and discharging module to charge the load through the power circuit and disconnecting the charging of the U-disk charger baby when the condition that the load is connected is monitored, the method comprises the following steps:
monitoring whether the load electric quantity is full;
if the USB flash disk is full of the power supply circuit, the charging and discharging module is controlled by the power supply circuit to charge the USB flash disk charger, and the load is disconnected to charge.
5. The method for controlling the U-disk charger baby according to claim 3 or 4, wherein the step of controlling the charging and discharging module to charge the U-disk charger baby through the power circuit comprises the following steps:
monitoring whether the U disk charger is full of electricity;
if the USB flash disk charger is full of the USB flash disk charger, the charging and discharging module is controlled to be disconnected to charge the USB flash disk charger.
6. The control method for the U-disk charger baby during charging according to claim 3 or 4, wherein the U-disk charger baby further comprises a charging indicator light;
after the step of controlling the charging and discharging module to charge the USB flash disk charger through the power circuit, the method comprises the following steps of:
and starting a charging indicator lamp to display the charging state of the USB flash disk charger.
7. The control method for charging the U-disk charger according to claim 2, wherein the charge and discharge management circuit further comprises a wireless coil circuit;
when external power source inserts the USB flash disk treasured that charges, the step of the electric current of inserting external power source includes:
the main controller monitors whether an external power supply is connected to the USB input interface circuit or not through a monitoring circuit;
if yes, the USB input interface circuit is connected with current and the wireless coil circuit is disconnected from receiving the current; if not, the current is induced through the wireless coil module.
8. The control method for charging the U-disk charger baby according to claim 1 or 2, wherein the U-disk charger baby further comprises a key switch for starting data transmission; the monitoring load is provided with a data request; and the step of monitoring whether the external power supply has a data request comprises:
monitoring whether the key switch starts data transmission or not through a monitoring circuit;
the monitoring circuit is used for monitoring whether the D + and D-interfaces of the USB interface circuit are detected or not.
9. A control device for charging a U disk charger bank is used for an external power supply to access the U disk charger bank for charging, and is characterized in that the U disk charger bank at least comprises a main controller, a charge-discharge module, a data transmission module and a monitoring circuit for monitoring whether a load access and data transmission request exists; the main controller is respectively connected with the charge-discharge module, the data transmission module and the monitoring circuit; the data transmission module comprises a USB interface circuit, and the USB interface circuit comprises a USB input interface circuit and a USB output interface circuit;
the device comprises:
the access unit is used for accessing the current of the external power supply when the external power supply is accessed into the USB flash disk charger;
the monitoring unit is used for monitoring whether a load access and data transmission request exists through a monitoring circuit;
the control unit is used for controlling the data transmission of the data transmission module according to the monitoring result; and/or controlling a charge-discharge module to charge the load or the USB flash disk charger according to the monitoring result;
the control unit includes:
the monitoring subunit is used for monitoring whether the load has a data request or not when monitoring a signal of the USB output interface circuit accessing the load; if the signal that the USB input interface circuit is connected to the external power supply is monitored, whether the external power supply has a data request is monitored;
and the control subunit is used for controlling the data transmission circuit to start data transmission if the request is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN107612104A (en) | 2018-01-19 |
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