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More  Comparator Circuits

PRECISION AC PEAK DETECTOR


This unique circuit uses a very inexpensive voltage comparator to form a peak detector. The DC voltage produced tracks the positive peak of the input signal.  It works from about ten millivolts to about 10 volts peak to peak.  The maximum frequency is about 150KHz.

Click on Drawing Below to view PDF version of Schematic

Circuit Broad Band Peak Detector designed by David Johnson, P.E. (Feb 11, 2002)

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