I have a circuit that powers some leds when vibrations are detected. I am trying to integrate a PMOS for reverse polarity battery protection.
When the PMOS is present the circuit simulation fails as soon as the piezo (simulated using V1+R1) sine wave starts i.e. TDelay secs. Without the PMOS the circuit works as expected but I don't have any reverse polarity protection.
Is the piezo closing the PMOS?