I have a device that turns on 12v solenoids with mosfets. I am out of pins on my multiplexer and thought it would just be easier to bridge the relays 12v activation pin to the solenoids so when a solenoid is on, so is the relay.
I dont want both solenoids on at same time. Could I just use a diode on each of the solenoid wires. I want to add a jumper wire to each solenoid power wire and run them both to the relays 12v activation pin. If I use a diode on each of the solenoid wires would this prevent one solenoid fro. activating the other?
Aka twist the diodes together instead of the solenoid wires.
A schematic of your proposed circuit would be much better than a written description. The schematic diagram is the language that we use to describe electronic circuits. A hand drawn, photographed and posted schematic is perfectly acceptable.