Current-shunt-amplifier


Posted on Sep 4, 2012

This circuit measures the power -supply current of a circuit without really having a currentshunt resistor: R1 is only 3 em of #20 gauge copper wire. A length of the power distribution wiring can be used for Rl.


Current-shunt-amplifier
Click here to download the full size of the above Circuit.

The MAX420"s CMVR includes its own negative power supply; therefore, it can both be powered by and measure current in the ground line.




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