Peak_detector_and_hold

Published:2009/7/17 3:45:00 Author:Jessie | From:SeekIC

This circuit uses both sections of an XR-13600 (Fig. 11- 1B). The peak detector uses A2 to turn on A1 whenever VIN becomes more positive than VO. A1 then charges C to hold VO equal to VIN (peak). Notice that the Darlington used must be on the same side of the package as A2 because the Ay Darlington is turned on and off with A1. Pulling the output of A2 low through D1 serves to turn off A1 so that VO remains constant. EXAP Corporation Databook 1990 p 5 257



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