I have 3 power jacks connected to a shared bus via a PCB. Each jack provides 19volts/9.5 amps. On it I have a microprocessor I have programmed. What I would like to do is have the micro sense which jack has been plugged in.
Because of the heat and high amperage diodes don't seem like the best choice, and I have limited space for relays. Anyone have any good suggestions how I would go about doing this?
Mark