Electronics > Projects, Designs, and Technical Stuff
How to measure the voltage across a potentiometer ratiometrically
jbb:
Sorry, was that 1000 Ohm max or 5k max?
I think we can do this without analog multiplier chips or choppers. The scheme I’m thinking of will drive the sensor with a constant current that is proportional to the supply rail.
Do you have any maximum current or voltage or power specs for the sensor (variable resistor)?
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