I'm trying to switch the latching solenoid on and off with an H-bridge circuit (see figure).
I've run this circuit a few times with no problems, I turn the solenoid on and off. However, after turning it on and off a few times, one of the P-MOS gets hot and breaks down. Since MOSFETs have body diodes in themselves, I didn't connect the diode again to the circuit.
Should I add 4 diodes to protect MOSFETs from inductive load? This is the only solution I can think of. If you have another suggestion, I'd like to explore it.
- When I supply the solenoid with 12V from the power supply, it consumes a maximum of 2.6A current.