CN115642677A - Power supply control circuit of MCU chip - Google Patents
Power supply control circuit of MCU chip Download PDFInfo
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- CN115642677A CN115642677A CN202211416774.3A CN202211416774A CN115642677A CN 115642677 A CN115642677 A CN 115642677A CN 202211416774 A CN202211416774 A CN 202211416774A CN 115642677 A CN115642677 A CN 115642677A
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Abstract
The invention discloses a power supply control circuit of an MCU chip, which relates to the technical field of power supplies and comprises a first charge-discharge control module and a second charge-discharge control module which are connected in series and used for storing energy and discharging electricity; the first access detection module and the second access detection module are respectively used for detecting the working states of the first charge-discharge control module and the second charge-discharge control module; the intelligent control module receives signals through the MCU circuit and controls the module to work; the driving module is used for improving the driving capability of the signal; the output detection control module is used for outputting sampling and electric energy transmission; and the charging control module is used for providing electric energy. In the power supply control circuit of the MCU chip, the MCU circuit controls the first charge-discharge control module and the second charge-discharge control module to carry out charge-discharge work and maintain the balanced charge-discharge of the circuit, and the electric energy output by the charge control module is regulated through the detection results of the first access detection module and the second access detection module.
Description
Technical Field
The invention relates to the technical field of power supplies, in particular to a power supply control circuit of an MCU chip.
Background
With the development of information technology, an MCU (Micro controller Unit) is widely used in an intelligent electronic device, and an MCU chip (Micro controller Unit), also called a single-chip microcomputer or a single-chip microcomputer, performs different combination control for different applications, however, because the power control circuit of the MCU chip is still weak in design, most of the existing power control circuits adopt a special DC-DC adjusting circuit or a switching power circuit to provide stable electric energy for the electronic device, but the DC-DC adjusting circuit or the switching power circuit has low intelligence and a single power supply mode, and the power control circuit of the MCU chip has poor power stability and low endurance, and thus needs to be improved.
Disclosure of Invention
The embodiment of the invention provides a power supply control circuit of an MCU chip, which aims to solve the problems in the background technology.
According to a first aspect of the embodiments of the present invention, there is provided a power control circuit of an MCU chip, the power control circuit of the MCU chip including: the intelligent control system comprises a first charge-discharge control module, a second charge-discharge control module, an intelligent control module, a driving module, a first access detection module, a second access detection module, an output detection control module and an output module;
the first charging and discharging control module is used for storing and discharging energy through the first energy storage circuit and controlling the first energy storage circuit to discharge and charge through the first bidirectional DC-DC regulating circuit;
the second charging and discharging control module is used for storing the electric energy output by the first charging and discharging control module through a second energy storage circuit, providing the electric energy for the first charging and discharging control module, and controlling the second energy storage circuit to discharge and charge through a second bidirectional DC-DC regulating circuit;
the first access detection module is connected with the first charge-discharge control module and the intelligent control module and is used for detecting the working state of the first charge-discharge control module and outputting a first access signal;
the second access detection module is connected with the second charge and discharge control module and the intelligent control module and is used for detecting the working state of the second charge and discharge control module and outputting a second access signal;
the intelligent control module is used for outputting a first pulse signal and a second pulse signal through the MCU circuit, receiving the first access signal and the second access signal and adjusting the duty ratio of the second pulse signal, receiving a signal fed back by the output detection control module and adjusting the duty ratio of the first pulse signal, and outputting a control signal and controlling the work of the output detection control module;
the driving module is connected with the first charge-discharge control module, the second charge-discharge control module and the intelligent control module and is used for improving the driving capability of the required first pulse signal and controlling the charge-discharge work and the DC-DC regulation work of the first charge-discharge control module and the second charge-discharge control module;
the output detection control module is connected with the first charge-discharge control module and the intelligent control module, is used for sampling the voltage output by the first charge-discharge control module and feeding back the voltage to the intelligent control module, and is used for receiving the control signal and controlling the transmission of electric energy;
and the output module is connected with the output detection control module and is used for receiving and outputting the electric energy output by the output detection control module.
According to another aspect of the embodiment of the present invention, the power control circuit of the MCU chip further includes a charging control module;
the charging control module is used for receiving the second pulse signal and providing charging electric energy for the first charging and discharging control module through a booster circuit;
the charging control module is connected with the intelligent control module and the first discharging control module.
Compared with the prior art, the invention has the beneficial effects that: the power supply control circuit of the MCU chip is controlled by the first charge-discharge control module and the second charge-discharge control module to carry out charge-discharge control, the MCU circuit in the intelligent control module is used for controlling the working states of the first charge-discharge control module and the second charge-discharge control module, and the first charge-discharge control module and the second charge-discharge control module are maintained to carry out balanced charge-discharge work when the first charge-discharge control module and the second charge-discharge control module are charged and discharged together, so that the stability of power supply and energy storage is improved, the endurance capacity of the power supply is also improved, meanwhile, the MCU circuit can also adjust the electric energy output by the charge control module through the detection results of the first access detection module and the second access detection module, the requirement of independent charge energy storage of the first charge-discharge control module or the charge electric energy required by the series connection of the first charge-discharge control module and the second charge-discharge control module is met, and the intelligence degree of electric energy control is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic block diagram of a power control circuit of an MCU chip according to an embodiment of the present invention.
Fig. 2 is a circuit diagram of a power control circuit of an MCU chip according to an embodiment of the present invention.
Fig. 3 is a connection circuit diagram of a charging control module according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In embodiment 1, referring to fig. 1, a power control circuit of an MCU chip includes: the intelligent charging and discharging control system comprises a first charging and discharging control module 1, a second charging and discharging control module 2, an intelligent control module 3, a driving module 4, a first access detection module 5, a second access detection module 6, an output detection control module 7 and an output module 8;
specifically, the first charge-discharge control module 1 is configured to store energy and discharge through a first energy storage circuit, and is configured to control the first energy storage circuit to perform discharge operation and charge operation through a first bidirectional DC-DC adjustment circuit;
the second charge and discharge control module 2 is used for storing energy for the electric energy output by the first charge and discharge control module 1 through a second energy storage circuit, providing the electric energy for the first charge and discharge control module 1, and controlling the discharge work and the charge work of the second energy storage circuit through a second bidirectional DC-DC regulating circuit;
the first access detection module 5 is connected with the first charge-discharge control module 1 and the intelligent control module 3 and is used for detecting the working state of the first charge-discharge control module 1 and outputting a first access signal;
the second access detection module 6 is connected with the second charge and discharge control module 2 and the intelligent control module 3 and is used for detecting the working state of the second charge and discharge control module 2 and outputting a second access signal;
the intelligent control module 3 is used for outputting a first pulse signal and a second pulse signal through the MCU circuit, receiving the first access signal and the second access signal and adjusting the duty ratio of the second pulse signal, receiving a signal fed back by the output detection control module 7 and adjusting the duty ratio of the first pulse signal, and outputting a control signal and controlling the work of the output detection control module 7;
the driving module 4 is connected with the first charge-discharge control module 1, the second charge-discharge control module 2 and the intelligent control module 3 and is used for improving the driving capability of the required first pulse signal and controlling the charge-discharge work and the DC-DC regulation work of the first charge-discharge control module 1 and the second charge-discharge control module 2;
the output detection control module 7 is connected with the first charge and discharge control module 1 and the intelligent control module 3, is used for sampling the voltage output by the first charge and discharge control module 1 and feeding back the voltage to the intelligent control module 3, and is used for receiving the control signal and controlling the transmission of electric energy;
and the output module 8 is connected with the output detection control module 7 and is used for receiving and outputting the electric energy output by the output detection control module 7.
Further, the power control circuit of the MCU chip further includes a charging control module 9;
specifically, the charging control module 9 is configured to receive the second pulse signal and provide charging electric energy to the first charging and discharging control module 1 through a voltage boost circuit;
the charging control module 9 is connected to the intelligent control module 3 and the first discharging control module.
In a specific embodiment, the first charge-discharge control module 1 may adopt a first bidirectional DC-DC adjusting circuit and a first energy storage circuit, and the first bidirectional DC-DC adjusting circuit controls charge-discharge operation of the first energy storage circuit; the second charge and discharge control module 2 adopts a control circuit which is the same as that of the first charge and discharge control module 1 and is connected with the first charge and discharge control module 1 in series, and details are not repeated herein; the intelligent control module 3 can adopt an MCU circuit to receive and process signals and output pulse signals and control the work of the signal control module; the driving module 4 can adopt a triode amplifying circuit to improve the driving capability of the input pulse signal; the first access detection module 5 and the second access detection module 6 can both adopt a resistance voltage division circuit and a triode transmission circuit to provide a first access signal and a second access signal for the intelligent control module 3; the output detection control module 7 can adopt a resistance voltage-dividing circuit and a power switch circuit, the resistance voltage-dividing circuit samples the input electric energy, and the power switch circuit controls the transmission of the electric energy; the output module 8 is an electric energy output port, which is not described herein; the charging control module 9 may adopt a Boost circuit to perform Boost regulation control of electric energy.
Embodiment 2, referring to fig. 2 and fig. 3, on the basis of embodiment 1, the intelligent control module 3 includes a first controller U1; the driving module 4 comprises a third switching tube VT3, a fourth switching tube VT4, a seventh resistor R7, a fifth switching tube VT5, a sixth switching tube VT6 and a twelfth resistor R12;
specifically, a first IO end of the first controller U1 is connected to a base of a fourth switching tube VT4 and a base of a third switching tube VT3 through a seventh resistor R7, an emitter of the third switching tube VT3 is connected to the first charge-discharge control module 1 and a collector of the fourth switching tube VT4, the emitter of the fourth switching tube VT4 and the emitter of the sixth switching tube VT6 are both grounded, a second IO end of the first controller U1 is connected to a base of a fifth switching tube VT5 and a base of the sixth switching tube VT6 through a twelfth resistor R12, the emitter of the fifth switching tube VT5 is connected to a collector of the sixth switching tube VT6, and the collector of the third switching tube VT3 is connected to a collector of the fifth switching tube VT 5.
In a specific embodiment, the first controller U1 may be an MCU controller, which may be specifically, but not limited to, an STM32 single chip microcomputer, an STC89C52 single chip microcomputer, and the like, and receive feedback information and provide a pulse signal required by the circuit; the third switching tube VT3 and the fifth switching tube VT5 can both adopt PNP type triodes, the fourth switching tube VT4 and the sixth switching tube VT6 can both adopt NPN type triodes, and the third switching tube VT3, the fourth switching tube VT4, the fifth switching tube VT5 and the sixth switching tube VT6 respectively form a triode amplifying circuit, so that the driving capability of input pulse signals is improved.
Further, the driving module 4 further includes a first driving unit and a second driving unit;
specifically, the second driving unit and the first driving unit are both used for improving the driving capability of the first pulse signal and controlling the second charge and discharge control module 2 to work;
the circuit connection structure of the first driving unit is the same as that of the second driving unit, the circuit connection receiving of the first driving unit is the same as that of the third switching tube VT3, the fourth switching tube VT4 and the seventh resistor R7, the circuit connection structure of the second driving unit is the same as that of the fifth switching tube VT5, the sixth switching tube VT6 and the twelfth resistor R12, and the first driving unit and the second driving unit are controlled by a third IO end and a fourth IO end of the first controller U1 respectively.
Further, the first charge and discharge control module 1 includes a first energy storage device, a first key switch S1, a first inductor L1, a first power tube Q1, a second power tube Q2, and a first capacitor C1;
specifically, a first end of the first energy storage device is connected to a first end of a first inductor L1 through a first key switch S1, a second end of the first inductor L1 is connected to a source electrode of a first power tube Q1, a drain electrode of a second power tube Q2 and a collector electrode of a third switching tube VT3, the drain electrode of the first power tube Q1 is connected to a second end of the first energy storage device and one end of a first capacitor C1, a source electrode of the second power tube Q2 is connected to the other end of the first capacitor C1 and the output detection control module 7, and a gate electrode of the first power tube Q1 and a gate electrode of the second power tube Q2 are separated.
In a specific embodiment, the first key switch S1 is used for controlling the output and input of the electric energy of the first energy storage device; the first power tube Q1 and the second power tube Q2 can be P-channel enhancement MOS tubes, and are respectively controlled by the second IO end and the first IO end of the first controller U1, and form a first bidirectional DC-DC regulating circuit in cooperation with the first inductor L1 and the first capacitor C1, so as to complete charging and discharging control of the first energy storage device.
Further, the second charge and discharge control module 2 includes a second energy storage device, a second key switch S2, a second inductor L2, a third power tube Q3, a fourth power tube Q4, and a second capacitor C2;
specifically, the first end of the second energy storage device is connected to the first end of the second inductor L2 through the second key switch S2, the second end of the second inductor L2 is connected to the source of the third power tube Q3 and the drain of the fourth power tube Q4, the source of the fourth power tube Q4 is connected to the second end of the first energy storage device and to the ground through the second capacitor C2, the gate of the third power tube Q3 and the gate of the fourth power tube Q4 are connected to the first driving unit and the second driving unit, and the drain of the third power tube Q3 and the second end of the second energy storage device are both grounded.
In a specific embodiment, the second energy storage device is connected in series with the first energy storage device; the second key switch S2 is used for controlling the output and input of electric energy of the second energy storage device; the third power tube Q3 and the fourth power tube Q4 can be P-channel enhancement type MOS tubes, and are respectively controlled by the fourth IO end and the third IO end of the first controller U1, and form a second bidirectional DC-DC adjusting circuit in cooperation with the second inductor L2 and the second capacitor C2, so that charging and discharging control of the second energy storage device is completed, and balanced charging and discharging work of the second energy storage device and the first energy storage device is controlled.
Further, the first access detection module 5 includes a third resistor R3, a fourth resistor R4, a first switching tube VT1, and a first resistor R1;
specifically, one end of the third resistor R3 and a collector of the first switching tube VT1 are connected to the first end of the first inductor L1, a base of the first switching tube VT1 is connected to the other end of the third resistor R3 and is connected to one end of the first resistor R1 and the second end of the first energy storage device through the fourth resistor R4, and the other end of the first resistor R1 and an emitter of the first switching tube VT1 are both connected to the seventh IO end of the first controller U1.
Further, the second access detection module 6 includes a fifth resistor R5, a sixth resistor R6, a second resistor R2, and a second switching tube VT2;
specifically, one end of the fifth resistor R5 and the collector of the second switching tube VT2 are connected to the first end of the second inductor L2, the other end of the fifth resistor R5 is connected to the base of the second switching tube VT2 and is connected to one end of the second resistor R2 and the second end of the second energy storage device through a sixth resistor R6, and the emitter of the second switching tube VT2 and the other end of the second resistor R2 are both connected to the eighth IO end of the first controller U1.
In a specific embodiment, the third resistor R3, the fourth resistor R4, the fifth resistor R5, and the sixth resistor R6 form a resistor divider circuit, and detect access states of the first energy storage device and the second energy storage device, respectively; the first switch tube VT1 and the second switch tube VT2 may both be NPN transistors, and provide the first access signal and the second access signal for the first controller U1.
Further, the output detection control module 7 includes an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, a tenth switching tube VT10, a ninth switching tube VT9, and a fifth power tube Q5;
specifically, one end of the eighth resistor R8, the collector of the ninth switch transistor VT9, and the drain of the fifth power transistor Q5 are all connected to the source of the second power transistor Q2, the other end of the eighth resistor R8 is connected to the sixth IO terminal of the first controller U1 and is connected to the ground terminal through the ninth resistor R9, the base of the ninth switch transistor VT9 is connected to the base of the tenth switch transistor VT10 and is connected to the fifth IO terminal of the first controller U1 through the tenth resistor R10, the emitter of the ninth switch transistor VT9 is connected to the gate of the fifth power transistor Q5 and the collector of the tenth switch transistor VT10, the emitter of the tenth switch transistor VT10 is grounded, and the drain of the fifth power transistor Q5 is connected to the output module 8.
In a specific embodiment, the eighth resistor R8 and the ninth resistor R9 form a resistor divider circuit, and provide an output feedback signal for the first controller U1; the ninth switching tube VT9 may be a PNP triode, and the tenth switching tube VT10 may be an NPN triode, and is configured to control the fifth power tube Q5 to be turned off; the fifth power transistor Q5 may be a P-channel enhancement type MOS transistor, and controls output of electric energy.
Further, the charging control module 9 includes a direct current power supply, a third inductor L3, a first diode D1, a sixth power tube Q6, a seventh switching tube VT7, an eighth switching tube VT8, a third capacitor C3, and an eleventh resistor R11;
specifically, the first end of the dc power supply is connected to the collector of the seventh switch tube VT7 and connected to the source of the sixth power tube Q6 and the anode of the first diode D1 through the third inductor L3, the cathode of the first diode D1 is connected to the source of the second power tube Q2 and connected to the ground through the third capacitor C3, the second end of the dc power supply, the drain of the sixth power tube Q6 and the emitter of the eighth switch tube VT8 are all grounded, the gate of the sixth power tube Q6 is connected to the emitter of the seventh switch tube VT7 and the collector of the eighth switch tube VT8, and the base of the seventh switch tube VT7 is connected to the base of the eighth switch tube VT8 and connected to the ninth IO end of the first central controller through the eleventh resistor R11.
In a specific embodiment, the third inductor L3, the sixth power transistor Q6, the first diode D1 and the third capacitor C3 form a boost circuit, and the sixth power transistor Q6 may be a P-channel enhancement MOS transistor; the seventh switching tube VT7 may be a PNP type triode, and the eighth switching tube VT8 may be an NPN type triode.
The invention relates to a power supply control circuit of an MCU chip, which controls the access of a first energy storage device and a second energy storage device through a first key switch S1 and a second key switch S2, when the first key switch S1 is closed and the first energy storage device is used for discharging, a first IO end and a second IO end of a first controller U1 drive a second power tube Q2 and a first power tube Q1 to be closed and disconnected, so that the first energy storage device outputs electric energy, an output feedback signal is provided for the first controller U1 through an eighth resistor R8 and a ninth resistor R9, the first controller U1 adjusts the duty ratio of an output pulse signal, adjusts the output electric energy and transmits the electric energy through a fifth power tube Q5, when the second key is closed, the second energy storage device is connected for power supply, a third IO end and a fourth IO end of the first controller U1 control the closing and disconnection of a fourth power tube Q4 and a third power tube Q3, the electric energy output by the second energy storage device is transmitted in a superposition manner with the electric energy of the first energy storage device, and the output pulse signal is adjusted by the first controller U1, so that the first energy storage device and the second energy storage device are discharged in a balanced manner, when charging is needed, if the first key switch S1 is pressed, the first switch tube VT1 provides a first access signal for the first controller U1, so that the first controller U1 controls the sixth power tube Q6 to be closed and disconnected, the direct-current power supply is controlled to provide the electric energy for the first energy storage device, when the second key is pressed, the second switch tube VT2 provides a second access signal for the first controller U1, so that the first controller controls the charging control module 9 to perform boosting processing, and the electric energy input into the first energy storage device and the second energy storage device is improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A power control circuit of MCU chip is characterized in that,
this power control circuit of MCU chip includes: the intelligent control system comprises a first charge-discharge control module, a second charge-discharge control module, an intelligent control module, a driving module, a first access detection module, a second access detection module, an output detection control module and an output module;
the first charging and discharging control module is used for storing and discharging energy through the first energy storage circuit and controlling the first energy storage circuit to discharge and charge through the first bidirectional DC-DC regulating circuit;
the second charge and discharge control module is used for storing energy for the electric energy output by the first charge and discharge control module through a second energy storage circuit, providing the electric energy for the first charge and discharge control module, and controlling the discharge work and the charge work of the second energy storage circuit through a second bidirectional DC-DC regulating circuit;
the first access detection module is connected with the first charge and discharge control module and the intelligent control module and is used for detecting the working state of the first charge and discharge control module and outputting a first access signal;
the second access detection module is connected with the second charge and discharge control module and the intelligent control module and is used for detecting the working state of the second charge and discharge control module and outputting a second access signal;
the intelligent control module is used for outputting a first pulse signal and a second pulse signal through the MCU circuit, receiving the first access signal and the second access signal and adjusting the duty ratio of the second pulse signal, receiving a signal fed back by the output detection control module and adjusting the duty ratio of the first pulse signal, and outputting a control signal and controlling the work of the output detection control module;
the driving module is connected with the first charge-discharge control module, the second charge-discharge control module and the intelligent control module and is used for improving the driving capability of the required first pulse signal and controlling the charge-discharge work and the DC-DC regulation work of the first charge-discharge control module and the second charge-discharge control module;
the output detection control module is connected with the first charge-discharge control module and the intelligent control module, is used for sampling the voltage output by the first charge-discharge control module and feeding back the voltage to the intelligent control module, and is used for receiving the control signal and controlling the transmission of electric energy;
and the output module is connected with the output detection control module and used for receiving and outputting the electric energy output by the output detection control module.
2. The power control circuit of the MCU chip according to claim 1, wherein the power control circuit of the MCU chip further comprises a charging control module;
the charging control module is used for receiving the second pulse signal and providing charging electric energy for the first charging and discharging control module through a booster circuit;
the charging control module is connected with the intelligent control module and the first discharging control module.
3. The power control circuit of the MCU chip according to claim 2, wherein the intelligent control module comprises a first controller; the driving module comprises a third switching tube, a fourth switching tube, a seventh resistor, a fifth switching tube, a sixth switching tube and a twelfth resistor;
the first IO end of the first controller is connected with the base of the fourth switching tube and the base of the third switching tube through a seventh resistor, the emitting electrode of the third switching tube is connected with the first charging and discharging control module and the collector of the fourth switching tube, the emitting electrode of the fourth switching tube and the emitting electrode of the sixth switching tube are both grounded, the second IO end of the first controller is connected with the base of the fifth switching tube and the base of the sixth switching tube through a twelfth resistor, the emitting electrode of the fifth switching tube is connected with the collector of the sixth switching tube, and the collector of the third switching tube is connected with the collector of the fifth switching tube.
4. The power control circuit of the MCU chip according to claim 3, wherein the driving module further comprises a first driving unit and a second driving unit;
the second driving unit and the first driving unit are used for improving the driving capability of the first pulse signal and controlling the work of the second charge-discharge control module;
the circuit connection structure of the first driving unit is the same as that of the second driving unit, the circuit connection of the first driving unit receives the signal and the circuit connection structure formed by the third switch tube, the fourth switch tube and the seventh resistor is the same as that of the third switch tube, the fourth switch tube and the seventh resistor, the circuit connection structure of the second driving unit is the same as that formed by the fifth switch tube, the sixth switch tube and the twelfth resistor, and the first driving unit and the second driving unit are controlled by the third IO end and the fourth IO end of the first controller respectively.
5. The power supply control circuit of the MCU chip according to claim 4, wherein the first charge-discharge control module comprises a first energy storage device, a first key switch, a first inductor, a first power tube, a second power tube and a first capacitor;
the first end of the first energy storage device is connected with the first end of the first inductor through the first key switch, the second end of the first inductor is connected with the source electrode of the first power tube, the drain electrode of the second power tube and the collector electrode of the third switch tube, the drain electrode of the first power tube is connected with the second end of the first energy storage device and one end of the first capacitor, the source electrode of the second power tube is connected with the other end of the first capacitor and the output detection control module, and the grid electrode of the first power tube and the grid electrode of the second power tube are divided.
6. The power control circuit of the MCU chip of claim 5, wherein the second charge-discharge control module comprises a second energy storage device, a second key switch, a second inductor, a third power tube, a fourth power tube and a second capacitor;
the first end of the second energy storage device is connected with the first end of the second inductor through the second key switch, the second end of the second inductor is connected with the source electrode of the third power tube and the drain electrode of the fourth power tube, the source electrode of the fourth power tube is connected with the second end of the first energy storage device and is connected with the ground end through the second capacitor, the grid electrode of the third power tube and the grid electrode of the fourth power tube are respectively connected with the first driving unit and the second driving unit, and the drain electrode of the third power tube and the second end of the second energy storage device are both grounded.
7. The power control circuit of the MCU chip according to claim 5, wherein the first access detection module comprises a third resistor, a fourth resistor, a first switch tube, a first resistor;
one end of the third resistor and a collector of the first switch tube are connected with the first end of the first inductor, a base of the first switch tube is connected with the other end of the third resistor, one end of the first resistor and the second end of the first energy storage device are connected through a fourth resistor, and the other end of the first resistor and an emitting electrode of the first switch tube are connected with a seventh IO end of the first controller.
8. The power control circuit of the MCU chip according to claim 6, wherein the second access detection module comprises a fifth resistor, a sixth resistor, a second resistor and a second switch tube;
one end of the fifth resistor and a collector of the second switch tube are connected with the first end of the second inductor, the other end of the fifth resistor is connected with a base of the second switch tube and is connected with one end of the second resistor and the second end of the second energy storage device through a sixth resistor, and an emitting electrode of the second switch tube and the other end of the second resistor are connected with an eighth IO end of the first controller.
9. The power control circuit of the MCU chip according to claim 5, wherein the output detection control module comprises an eighth resistor, a ninth resistor, a tenth switching tube, a ninth switching tube and a fifth power tube;
one end of the eighth resistor, the collector of the ninth switch tube and the drain of the fifth power tube are all connected with the source of the second power tube, the other end of the eighth resistor is connected with the sixth IO end of the first controller and is connected with the ground end through the ninth resistor, the base of the ninth switch tube is connected with the base of the tenth switch tube and is connected with the fifth IO end of the first controller through the tenth resistor, the emitter of the ninth switch tube is connected with the grid of the fifth power tube and the collector of the tenth switch tube, the emitter of the tenth switch tube is grounded, and the drain of the fifth power tube is connected with the output module.
10. The power control circuit of the MCU chip of claim 5, wherein the charge control module comprises a DC power supply, a third inductor, a first diode, a sixth power tube, a seventh switch tube, an eighth switch tube, a third capacitor, and an eleventh resistor;
the first end of the direct current power supply is connected with a collector electrode of the seventh switch tube and is connected with a source electrode of the sixth power tube and an anode of the first diode through a third inductor, a cathode of the first diode is connected with a source electrode of the second power tube and is connected with a ground end through a third capacitor, a second end of the direct current power supply, a drain electrode of the sixth power tube and an emitter electrode of the eighth switch tube are all grounded, a grid electrode of the sixth power tube is connected with an emitter electrode of the seventh switch tube and a collector electrode of the eighth switch tube, and a base electrode of the seventh switch tube is connected with a base electrode of the eighth switch tube and is connected with a ninth IO end of the first central controller through an eleventh resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202211416774.3A CN115642677A (en) | 2022-11-14 | 2022-11-14 | Power supply control circuit of MCU chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202211416774.3A CN115642677A (en) | 2022-11-14 | 2022-11-14 | Power supply control circuit of MCU chip |
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| CN115642677A true CN115642677A (en) | 2023-01-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115856702A (en) * | 2023-03-02 | 2023-03-28 | 深圳华泰源通技术服务有限公司 | UPS power supply detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115856702A (en) * | 2023-03-02 | 2023-03-28 | 深圳华泰源通技术服务有限公司 | UPS power supply detection device |
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