Fault latch protection circuit used for electric vehicle inverter control circuit

The invention discloses a fault latch protection circuit for an inverter control circuit of an electric vehicle. The fault latch protection circuit is electrically connected with a motor controller, the fault latch protection circuit and the motor controller receive fault signals obtained by a front-end signal conditioning circuit. The fault latch protection circuit comprises a fault anti-shake circuit and a latch circuit, and the fault anti-shake circuit is electrically connected with the latch circuit; and the fault anti-shake circuit comprises a first filter circuit and a second filter circuit. The fault latch protection circuit used by the electric vehicle inverter control circuit has the functions of fault signal anti-shake, latching, reporting, fault resetting, fault shielding and the like, and can realize response of protection action, reduce cost and improve system stability within us time. 本发明公开了一种电动车逆变器控制电路使用的故障锁存保护电路，与电机控制器电性连接，并且与电机控制器均接收前端信号调理电路获得的故障信号，包括故障防抖电路和锁存电路，所述故障防抖电路和所述锁存电路电性连接，所述故障防抖电路包括