The invention discloses an AC charging CC signal detection circuit with a wake-up function. The AC charging CC signal detection circuit comprises a first power supply module, an awakening input module, an awakening output module, a sampling module, and a BMS main control chip; the input terminal of the first power supply module is connected with constant electricity 12V, and the output terminal is connected with a first input terminal of the awakening output module; a second input terminal of the awakening input module is connected with a CC signal terminal of an AC charging interface, and the output terminal WKP of the awakening input module is connected with a second input terminal of the awakening output module; a third input terminal of the awakening output module is connected with the output terminal OFF of the BMS main control chip, and the output terminal EN of the awakening output module is connected with the input terminal of a second power module; a first input terminal of the sampling module is connected with the output terminal of the second power supply module, a second input terminal of the sampling module is connected with a CC signal terminal of the existing alternating current charging interface socket, and the output terminal VTCC of the sampling module is connected with a second input terminal of the BMS main control chip; and a first input terminal of the BMS main control chip is connected with the output terminal of the second power supply module. According to the invention, the interface connection state detection function and the BMS awakening function can be realized at the same time.
本发明公开了一种具有唤醒功能的交流充电CC信号检测电路,包括第一电源模块;第一电源模块的输入端连接常电12V,输出端连接唤醒输出模块的第一输入端;唤醒输入模块,其第二输入端连接交流充电接口CC信号端,其输出端WKP连接唤醒输出模块的第二输入端;唤醒输出模块,其第三输入端连接BMS主控芯片的输出端OFF,输出端EN连接第二电源模块的输入端;采样模块,其第一输入端连接第二电源模块的输出端,第二输入端连接现有交流充电接口插座的CC信号端,其输出端VTCC连接BMS主控芯片的第二输入端;BMS主控芯片的第一输入端与第二电源模块的输出端连接。本发明可同时实现接口连接状态的检测功能和BMS的唤醒功能。
AC charging CC signal detection circuit with wake-up function
一种具有唤醒功能的交流充电CC信号检测电路
2021-04-27
Patent
Electronic Resource
Chinese
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