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File:Envelope detector circuit.svg

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Summary

Description
English: A simple envelope detector circuit, used to demodulate amplitude modulated (AM) radio signals in AM radio receivers. It consists of a semiconductor diode (D) with a bypass capacitor. The diode allows current to pass in only one direction, rectifying the AC radio signal to a pulsing DC current, whose peak value is proportional to the modulation. The capacitor C charges up to the peak value of the pulses, following the envelope of the modulation. It serves as a low pass filter, smoothing the pulsing current, removing the pulses of radio frequency carrier, leaving the audio frequency modulation.
Date
Source Own work
Author Chetvorno
SVG development
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Captions

Circuit of an envelope detector

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depicts

inception

17 April 2017

data size

12,201 byte

media type

image/svg+xml

checksum

1bae0c4da7c7c3a6310dddd220a1ffb92f854d76

determination method or standard: SHA-1

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Date/TimeThumbnailDimensionsUserComment
current02:21, 9 May 2017Thumbnail for version as of 02:21, 9 May 2017569 × 300 (12 KB)ChetvornoReplaced invalid SVG version with "plain SVG" version which passes validation
18:13, 18 April 2017Thumbnail for version as of 18:13, 18 April 2017569 × 300 (17 KB)ChetvornoChanged the colored labels to black; they were distracting
06:04, 18 April 2017Thumbnail for version as of 06:04, 18 April 2017569 × 300 (17 KB)ChetvornoUser created page with UploadWizard

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