Interference-Free Problems in the Applications of Relays
Chang Yue · Low Voltage Apparatus · 2002
The interference phenomenon caused by the relays of the electronic circuits in the control power loads was described, the mechanism generating interference was analyzed and the way to solve the problems was presented. It is found in the research that the interference is from the space couple, the resource of the interference is from the spark generating by contacts of relays which are making or breaking circuits. The measures of optical couple isolator may be adopted, and it will be able to cancel failure operation of the relays and to guarantee the stability of the relay operation. The correctness of the research results has already been proved by the practical applications.