Analysis of the Function of Parallel Diodes in Relay Coils 3

1. Suppressing back electromotive force and protecting circuit components, especially for weak signal circuits and sensitive semiconductor components, this protective effect is very important.diode

2. Reduce electromagnetic interference, as the current generated by the back electromotive force is limited to a smaller range, it can effectively reduce electromagnetic interference and improve the stability and reliability of the circuit.diode

3. Extend the lifespan of relay contacts by reducing electrical sparks between them, which can effectively prolong the service life of relay contacts.

Overall, the design of relay coil parallel diodes is a simple and effective method for improving the stability and reliability of circuits, and protecting circuit components from damage caused by back electromotive force. In the design of electrical control systems, this design consideration is of great significance for ensuring stable operation of the system and extending equipment life.diode