一种多通道电池充放电电路
By integrating power supply and communication functions into a single physical interface and data channel in a multi-channel battery charging and discharging circuit, the problems of high system complexity and increased cost in traditional circuits are solved, achieving structural simplification and cost reduction, while ensuring the independence of each channel.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI LUXSHARE INTELLIGENT MFG CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-17
AI Technical Summary
In traditional multi-channel battery charging and discharging circuits, power supply and data communication are separated, resulting in high system complexity, cumbersome wiring, and increased costs.
By integrating power supply and communication functions into a single physical interface and data channel, the charging and discharging control commands are converted into control signals through the communication interface circuit, and the power supply or power cut-off is controlled through the switching circuit, realizing the power transmission of the power supply and the interaction of control signals, thus simplifying the system structure.
It simplifies the system structure, reduces costs, and ensures that the channels do not interfere with each other.
Smart Images
Figure CN224520687U_ABST
Abstract
Claims
1. A multi-channel battery charging and discharging circuit, characterized by, This includes communication interface circuits, switching circuits, and charging / discharging control circuits; The communication interface circuit includes a first interface and at least two second interfaces, each of which is connected to the charge / discharge control circuit. The communication interface circuit is used to convert charge / discharge control commands into first control signals and transmit them to the charge / discharge control circuit via the second interfaces. The switching circuit includes at least two switching modules. The first interface is connected to a power supply and is connected to the power supply terminal of each of the switching modules. Each of the switching modules is connected to the charging and discharging control circuit. The charging and discharging control circuit controls the switching modules to supply or de-energize power according to the received first control signal.
2. The multi-channel battery charging and discharging circuit of claim 1, wherein, The charge / discharge control circuit includes at least two battery management modules; Each of the battery management modules includes a control module, a charging module, and a discharging module, with the control module connected to the charging module and the discharging module.
3. The multi-channel battery charging and discharging circuit according to claim 2, characterized in that, The switching module includes a first switching unit and a second switching unit; The control terminal of the first switching unit is coupled to the output terminal of the control module and the first interface. The first terminal of the first switching unit is grounded, and the second terminal of the first switching unit is coupled to the control terminal of the second switching unit. The control terminal of the second switching unit is also connected to the first interface. The first terminal of the second switching unit is coupled to the first interface, and the second terminal of the second switching unit is coupled to the power supply terminal of the charging module and the power supply terminal of the discharging module.
4. The multi-channel battery charging and discharging circuit of claim 3, wherein, The first switching unit includes a first transistor, and the second switching unit includes a second transistor; The gate of the first transistor serves as the control terminal of the first switching unit, the source of the first transistor serves as the first terminal of the first switching unit, and the drain of the first transistor serves as the second terminal of the first switching unit. The gate of the second transistor serves as the control terminal of the second switching unit, the source of the second transistor serves as the first terminal of the second switching unit, and the drain of the second transistor serves as the second terminal of the second switching unit; wherein the channel types of the first transistor and the second transistor are different.
5. The multi-channel battery charging and discharging circuit of claim 4, wherein, The switching module also includes a first resistor, a second resistor, and a third resistor; The first end of the first resistor is connected to the first interface, the second end of the first resistor is connected to the gate of the first transistor and the first end of the second resistor, and the first end of the second resistor is grounded. The first end of the third resistor is connected to the first interface, and the second end of the third resistor is connected to the gate of the second transistor.
6. The multi-channel battery charging and discharging circuit of claim 2, wherein, The multi-channel battery charging and discharging circuit further includes at least two temperature detection modules. The input terminal of each temperature detection module is connected to the charging module and the discharging module respectively, and the output terminal of each temperature detection module is connected to the control module respectively, so as to transmit the detected temperature signal to the control module.
7. The multi-channel battery charging and discharging circuit of claim 1, wherein, The communication interface circuit is a USB to serial communication circuit, with the first interface being a USB interface and the second interface being a UART interface.
8. The multi-channel battery charging and discharging circuit of claim 2, wherein, The multi-channel battery charging and discharging circuit also includes a control panel, which is connected to the control module via a communication interface circuit. The control panel includes at least two indicator light units and at least two parameter input units; The indicator unit includes at least a charging end indicator and a discharging end indicator; The parameter input unit is used for users to input battery charging and discharging parameters, which include charging target value, charging current value, discharging target value, and discharging current value.
9. The multi-channel battery charging and discharging circuit of claim 2, wherein, The multi-channel battery charging and discharging circuit further includes at least two charging and discharging status indication modules, which are connected to the control module and are used to indicate the charging and discharging status of the battery according to the second control signal.
10. The multi-channel battery charging and discharging circuit of claim 9, wherein, The charge / discharge status indication module includes a third transistor, a fourth transistor, a first indicator light, a second indicator light, and a fourth resistor; The gate of the third transistor is connected to the output terminal of the control module, the source of the third transistor is grounded, and the drain of the third transistor is connected to the cathode of the first indicator light. The gate of the fourth transistor is connected to the cathode of the first indicator light, the source of the fourth transistor is grounded, and the drain of the fourth transistor is connected to the cathode of the second indicator light. The first end of the fourth resistor is connected to the first interface, and the second end of the fourth resistor is connected to the anode of the first indicator light and the anode of the second indicator light.