一种继电器驱动及故障诊断电路

A Relay Driving and Fault Diagnosis Circuit System

为满足电子电路日益严格的安全问题,可采用集成驱动器方式来监测继电器的驱动和线圈状态。介绍了通过继电器驱动芯片来驱动继电器线圈,并以此对继电器的驱动和线圈做故障诊断,另外还对继电器的触点状态进行监测,这样构成了整个继电器的驱动和诊断电路,提高了电子电路的安全性。

In order to meet the increasingly strict safety problems of electronic circuits,integrated driver can be used to monitor the drive and coil status of the relay.In this paper,the relay coil is driven by the relay driver chip,and the fault diagnosis is made for the drive and coil of the relay.In addition,the contact state of the relay is monitored,which constitutes the drive and diagnosis circuit of the whole relay and improves the safety of the electronic circuit.