Countermeasures against back EMF

138

01:19:49

Failure to take countermeasures against back EMF will significantly shorten the life of the circuit.

Left - No countermeasures
Center-Measures using diodes
Right - Countermeasure using snubber circuit

The diode solution is easy to use, but it cannot reverse the voltage across the coil.
If you want to take advantage of the EXOR-like characteristics of the relay, I recommend using a snubber or a circuit.

published 2 years ago

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