Wake-up drive circuit, wake-up system and vehicle-mounted electronic system

The invention relates to a wake-up drive circuit, a wake-up system and a vehicle-mounted electronic system, which relates to the field of automotive electronics. The wake-up drive circuit comprises a global signal switching circuit for realizing high and low level conversion of the global signal, providing a global signal to the load circuit; a transfer circuit provided between the global signal switching circuit and the load circuit for sequentially performing the charging and discharging process when the global signal provides a low level signal. Thereby enabling the transfer circuit to pull the potential down so that the wiring harness can be effectively provides a low level to the subsystem load circuit in a short time to enable the subsystem load drive circuit to enter the sleep mode. 种唤醒驱动电路、唤醒系统和车载电子系统，涉及汽车电子领域，所述唤醒驱动电路包括：全局信号开关电路，用于实现全局信号的高低电平转换，向负载电路提供全局信号；传递电路，设置在全局信号开关电路和负载电路之间，用于在全局信号提供低电平信号时依次进行充电和放电过程。从而使得传递电路能够将电位拉低，以使得线束短地时能够有效地向子系统负载电路提供低电平以使子系统负载驱动电路进入休眠模式。