Hello All, Please excuse my lack of jargon. If i knew what the circuit was called i could have googled it and not have had to ask here but i’m at a loss. I have a sensor and one of the wires needs to be grounded except when you want it to perform its task, then it needs 12 volts. How do I accomplish this? Using diodes?
(Excuse my ignorance, I may be an engineer but i like the things that move not the way to power them )
I included the diagram that have for the input circuit. This may give me what i want but i do not understand it. And with the sensor being several thousand dollar, i want to understand it.