isolated ac current monitor

Posted on Feb 6, 2014

This circuit uses a small AC current transformer from Magnetek to produce an isolated voltage proportional to the AC current in the primary winding. The transformer contains a single turn primary with a low 0. 001-ohm resistance. It can easily handle 30 amps of AC current and provides at least 500vac of isolation. With the components shown, the out

isolated ac current monitor
Click here to download the full size of the above Circuit.

put AC voltage is scaled so 1 amp of current produces 100mv of AC voltage.

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