Transient diode failure monitoring circuit

The invention discloses a transient diode failure monitoring circuit, and relates to the technical field of circuit protection. A differential amplification module and a voltage sampling module of the circuit are electrically connected with a transient diode, when the transient diode is switched from a high-resistance state to a low-resistance state, an operational amplifier in the differential amplification module obtains diode active signals, a statistical module is electrically connected with the differential amplification module, and the voltage sampling module is electrically connected with the statistical module. And the statistical module counts a working frequency signal of the transient diode according to the diode active signal and outputs an aging signal of the transient diode. Through the transient diode failure monitoring circuit, the use state of the transient diode can be obtained in time, and the failure risk of the transient diode can be eliminated in time. 本发明公开一种瞬态二极管失效监控电路，涉及电路保护技术领域。电路的差分