I have a 6 volt supply that I need enable/disable using another 3 volt supply.
If I use a PNP Darlington set-up like this:
Then I get just under 6 volts at the Output node.
My problem is that I don't have any PNP transistors but I do have several NPN transistors and I was hoping that setting up a NPN Darlington would give me similar results, but building something like this yields about 2 volts at the Output node:
My question is; is there a circuit I can make using NPN transistors (2N2222 to be exact) what will give me a voltage close to V2 voltage when V1 is enabled?