Bo Deadly
Well-known member
UPDATE: Previous circuits posted here did not work in one way or another. I have since devised the following circuit that simulates well and seems to function properly so I removed the original question text and associated circuits.
The following untested circuit should allow switching in/out the load of a bipolar power supply (batteries in this case) using a single control pin (grounding the "enable" pin). The trick is to adjust the resistors connected to the mosfets to get properly above and below the particular mosfet Vgs(th).
The following untested circuit should allow switching in/out the load of a bipolar power supply (batteries in this case) using a single control pin (grounding the "enable" pin). The trick is to adjust the resistors connected to the mosfets to get properly above and below the particular mosfet Vgs(th).