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"Hobby Circuits for your Hobby Projects"
Last Updated on:  08/29/2008 02:09:04 PM

AC Current Monitor Circuit
designed by David Johnson, P.E.
The hobby circuit below shows how a small current transformer from Magnetek can be used to monitor AC current to a load.  The AC voltage developed at the secondary of the transformer can be scaled so it can be read by any digital multimeter.  The transformer is rated at 30 amps.  

Click on Schematic below to view PDF version of this Circuit

Circuit Circuit Isolated AC Current Monitor circuit designed by David A. Johnson (January 20, 2001)

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