According to an embodiment of the present invention, an ignition wake-up circuit includes: an input node receiving an ignition voltage as an input; an output node outputting a wake-up voltage; and the voltage sensing unit outputs a wake-up signal according to the magnitude of the ignition voltage. The voltage sensing unit outputs a wake-up signal when the ignition voltage reaches a voltage level greater than or equal to the first reference voltage from a voltage less than the first reference voltage, and outputs a low signal when the ignition voltage reaches a voltage level less than or equal to the second reference voltage from a voltage greater than the second reference voltage, and the first reference voltage is greater than the second reference voltage.
根据本发明的实施例,一种点火唤醒电路包括:输入节点,接收点火电压作为输入;输出节点,输出唤醒电压;以及电压感测单元,根据点火电压的大小输出唤醒信号。当点火电压从小于第一参考电压的电压达到大于或等于第一参考电压的电压电平时,电压感测单元输出唤醒信号,而当点火电压从大于第二参考电压的电压达到小于或等于第二参考电压的电压电平时,电压感测单元输出低信号,并且第一参考电压大于第二参考电压。
Ignition wake-up circuit
点火唤醒电路
2025-03-28
Patent
Electronic Resource
Chinese