Table of Contents
Whether or not the P channel MOSFET conducts in the schematic diagram above depends on the polarity of the power source across the circuit.
- Connecting the gate directly to ground turns P channel enhancement mode MOSFET on. Usually the Source is more positive than the drain, but it is OK that it isn’t in this circuit.
- P channel enhancement mode MOSFET connected to positive supply turns the transistor off. That is the normal way to wire a P channel enhancement mode MOSFET so that it is off.
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