current measurement


Thread Starter


i have seven pieces of resistors by heating. i cotrol resistors current by solid state relays. relays driven by digital outputs. can i measure all different currents with only one analog input?
You could, but why? Anyway, one method that I can think of is to create a sort of multiplex circuit. Connect your seven analog signals to seven relays, all connected to the one analog input. Then energize one relay at a time and take
a measurement.

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you need a multiplexer.
Use TC (Current Transform)and circuit convert CA/CD and multiplexe.
I made a circuit for this use. If you wish, i send you.
I sorry my letter I speek spanish.