CN-224233384-U - Charge-discharge control circuit and charge-discharge system

CN224233384UCN 224233384 UCN224233384 UCN 224233384UCN-224233384-U

Abstract

The application discloses a charge and discharge control circuit and a charge and discharge system, and relates to the technical field of battery management, wherein the charge and discharge control circuit comprises a main control module, a voltage adjustment module, a TypeC input and output module and a solar energy input module, the main control module is respectively in communication connection with the voltage adjustment module, the TypeC input and output module and the solar energy input module, the voltage adjustment module is respectively and electrically connected with the TypeC input and output module, a target battery and the solar energy input module, the main control module is used for collecting a first port signal of the TypeC input and output module and a second port signal of the solar energy input module, and adjusting the working mode of the voltage adjustment module according to the first port signal and the second port signal so as to charge and discharge a target battery.

Inventors

GONG CHENGPENG
CAO WENLIN
LIN YINGCHANG

Assignees

深圳拓邦股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250519

Claims (10)

1. The charge-discharge control circuit is characterized by comprising a main control module, a voltage adjustment module, a TypeC input-output module and a solar energy input module; The main control module is respectively in communication connection with the voltage adjustment module, the TypeC input/output module and the solar energy input module; The voltage adjusting module is respectively and electrically connected with the TypeC input/output module, the target battery and the solar energy input module; The main control module is used for collecting a first port signal of the TypeC input/output module and a second port signal of the solar energy input module, and adjusting the working mode of the voltage adjusting module according to the first port signal and the second port signal so as to charge and discharge the target battery.
2. The charge-discharge control circuit of claim 1, wherein the TypeC input-output module comprises a protocol control unit and a TypeC input-output unit; The main control module is in communication connection with the protocol control unit; The protocol control unit is in communication connection with the TypeC input/output unit; the voltage adjusting module is electrically connected with the TypeC input/output unit; The protocol control unit is used for collecting a first port signal of the TypeC input/output unit and forwarding the first port signal to the main control module.
3. The charge-discharge control circuit of claim 2, wherein the TypeC input-output unit comprises a TypeC port and a first control switch unit; The first control switch unit is respectively and electrically connected with the TypeC port and the voltage regulation module, and is in communication connection with the protocol control unit; The main control module is used for outputting a corresponding first switch control signal to the protocol control unit according to the first port signal and the second port signal; the protocol control unit is used for controlling the on-off of the first control switch unit according to the first switch control signal.
4. The charge-discharge control circuit according to claim 3, wherein the first control switch unit includes: The source electrode of the first field effect tube is connected with the TypeC port; the drain electrode of the second field effect tube is connected with the drain electrode of the first field effect tube, and the source electrode of the second field effect tube is connected with the voltage regulation module; The drain electrode of the third field effect tube is connected with the grid electrode of the first field effect tube and the grid electrode of the second field effect tube, and the source electrode of the third field effect tube is connected with the first power supply grounding end.
5. The charge-discharge control circuit of claim 1, wherein the solar input module comprises a solar input port, a filter unit, and a second control switch unit; the main control module is in communication connection with the second control switch unit; The filtering unit is respectively and electrically connected with the solar energy input port and the second control switch unit; the second control switch unit is electrically connected with the voltage adjustment module; The main control module is used for outputting a corresponding second switch control signal to the second control switch unit according to the first port signal and the second port signal so as to control the on-off of the second control switch unit.
6. The charge-discharge control circuit of claim 5, wherein the filtering unit includes: the first end of the protective tube is connected with the solar energy input port; The first end of the first zener diode is connected with the second end of the protective tube, and the second end of the first zener diode is connected with the solar energy input port; The first end of the first coil in the inductor is connected with the second end of the protective tube, the second end of the first coil in the inductor is connected with the second control switch unit, the first end of the second coil in the inductor is connected with the solar energy input port, and the second end of the second coil in the inductor is connected with the second power supply grounding end.
7. The charge-discharge control circuit according to claim 5, wherein the second control switch unit includes: the drain electrode of the fourth field effect tube is connected with the filtering unit; The cathode of the second zener diode is connected with the source electrode of the fourth field effect transistor, and the anode of the second zener diode is connected with the grid electrode of the fourth field effect transistor; The source electrode of the fifth field effect tube is connected with the source electrode of the fourth field effect tube, the drain electrode of the fifth field effect tube is connected with the voltage adjusting module, and the grid electrode of the fifth field effect tube is connected with the grid electrode of the fourth field effect tube; the first end of the first resistor is connected with the grid electrode of the fourth field effect transistor and the grid electrode of the fifth field effect transistor; The drain electrode of the sixth field effect tube is connected with the second end of the first resistor, and the source electrode of the sixth field effect tube is connected with the second power supply grounding end; and the first end of the second resistor is connected with the grid electrode of the sixth field effect transistor, and the second end of the second resistor is connected with the main control module.
8. The charge-discharge control circuit according to claim 1, wherein the voltage regulation module comprises a buck-boost chip and a third control switch unit, the buck-boost chip is respectively in communication connection with the main control module and the third control switch unit, and the third control switch unit is respectively and electrically connected with the TypeC input-output module, the solar energy input module and the target battery; And the third control switch unit is used for switching the communication between the TypeC input/output module and the solar energy input module and the target power supply according to the working mode of the buck-boost chip.
9. The charge-discharge control circuit according to claim 8, wherein the third control switch unit includes: A drain electrode of the seventh field effect tube is connected with the first control switch unit or the second control switch unit, and a source electrode of the seventh field effect tube is connected with the voltage adjusting module; The drain electrode of the eighth field effect tube is connected with the voltage adjusting module, and the source electrode of the eighth field effect tube is connected with the first power supply grounding end; The first end of the third resistor is connected with the grid electrode of the seventh field effect transistor, and the second end of the third resistor is connected with the voltage adjusting module; the first end of the fourth resistor is connected with the grid electrode of the eighth field effect transistor, and the second end of the fourth resistor is connected with the voltage adjusting module; the first end of the inductor is connected with the source electrode of the seventh field effect transistor; A source electrode of the ninth field effect tube is connected with the second end of the inductor, and a drain electrode of the ninth field effect tube is connected with the target battery; A tenth field effect tube, wherein the drain electrode of the tenth field effect tube is connected with the second end of the inductor, and the source electrode of the tenth field effect tube is connected with the first power supply grounding end; The first end of the fifth resistor is connected with the grid electrode of the tenth field effect transistor, and the second end of the fifth resistor is connected with the voltage adjusting module; And the first end of the sixth resistor is connected with the grid electrode of the ninth field effect transistor, and the second end of the sixth resistor is connected with the voltage adjusting module.
10. A charge-discharge system, characterized in that the charge-discharge system includes a target battery and the charge-discharge control circuit according to any one of claims 1 to 9.

Description

Charge-discharge control circuit and charge-discharge system Technical Field The present application relates to the field of battery management technologies, and in particular, to a charge and discharge control circuit and a charge and discharge system. Background The current mainstream solar charging solution adopts an integrated design strategy, namely an MPPT (Maximum power point tracking ) controller and a USB_C protocol conversion module are embedded in a solar panel, so that an integrated system of photovoltaic power generation-intelligent regulation-protocol adaptation is formed. According to the scheme, the optimal working point of the photovoltaic panel is tracked in real time through an MPPT algorithm, and the high-speed charge output of 100W is realized by matching with a PD (Power Delivery) protocol, so that the low-carbon charging requirement of mobile equipment is effectively met. However, the technical path has double technical bottlenecks that firstly, the production cost is improved compared with that of the traditional scheme due to the customized design of the USB_C protocol conversion module, the price competitiveness of a photovoltaic product is obviously weakened, the overall solar energy utilization rate is reduced due to the fact that solar energy is subjected to energy conversion twice, secondly, the compatibility of equipment is limited due to the sealing of a system architecture, charging and discharging and solar charging of similar battery products are both carried out by using a TypeC port, and meanwhile, if the solar panel is required to be used for charging, effective charging can only be realized by using the solar panel with the MPPT function and the USB_C protocol module, and the solar panel with the rest ports with most of market occupation rate still cannot be adapted to the whole sphere, so that a technical barrier for restricting the application of clean energy is formed. Disclosure of utility model The application mainly aims to provide a charge and discharge control circuit and a charge and discharge system, and aims to solve the problem that the conventional battery product cannot be compatible with TypeC port charge and discharge and arbitrary port solar panel charge at the same time. In order to achieve the above purpose, the charge-discharge control circuit provided by the application comprises a main control module, a voltage adjustment module, a typeC input-output module and a solar energy input module; The main control module is respectively in communication connection with the voltage adjustment module, the TypeC input/output module and the solar energy input module; The voltage adjusting module is respectively and electrically connected with the TypeC input/output module, the target battery and the solar energy input module; The main control module is used for collecting a first port signal of the TypeC input/output module and a second port signal of the solar energy input module, and adjusting the working mode of the voltage adjusting module according to the first port signal and the second port signal so as to charge and discharge the target battery. In an embodiment, the TypeC input/output module includes a protocol control unit and a TypeC input/output unit; The main control module is in communication connection with the protocol control unit; The protocol control unit is in communication connection with the TypeC input/output unit; the voltage adjusting module is electrically connected with the TypeC input/output unit; The protocol control unit is used for collecting a first port signal of the TypeC input/output unit and forwarding the first port signal to the main control module. In an embodiment, the TypeC input/output unit includes a TypeC port and a first control switch unit; The first control switch unit is respectively and electrically connected with the TypeC port and the voltage regulation module, and is in communication connection with the protocol control unit; The main control module is used for outputting a corresponding first switch control signal to the protocol control unit according to the first port signal and the second port signal; the protocol control unit is used for controlling the on-off of the first control switch unit according to the first switch control signal. In an embodiment, the first control switch unit includes: The source electrode of the first field effect tube is connected with the TypeC port; the drain electrode of the second field effect tube is connected with the drain electrode of the first field effect tube, and the source electrode of the second field effect tube is connected with the voltage regulation module; The drain electrode of the third field effect tube is connected with the grid electrode of the first field effect tube and the grid electrode of the second field effect tube, and the source electrode of the third field effect tube is connected with the first power supply grounding end. In an embodiment, t