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peak detector

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peak detector

[′pēk di‚tek·tər]
(electronics)
A detector whose output voltage approximates the true peak value of an applied signal; the detector tracks the signal in its sample mode and preserves the highest input signal in its hold mode.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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As the output of the precision rectifier can be the input of the next stage or to power another active element, larger PCE is desired so that next stage gives more DC output voltage with feasible efficiency for its proper operation.
A Self-Biased Active Voltage Doubler for Energy Harvesting Systems
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