File:Envelope detector circuit.svg
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Size of this PNG preview of this SVG file: 569 × 300 pixels. Other resolutions: 320 × 169 pixels | 640 × 337 pixels | 1,024 × 540 pixels | 1,280 × 675 pixels | 2,560 × 1,350 pixels.
Original file (SVG file, nominally 569 × 300 pixels, file size: 12 KB)
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 |  This diagram was created with Inkscape. |
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
 
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This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
| The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 03:21, 9 May 2017 | | 569 × 300 (12 KB) | wikimediacommons>Chetvorno | Replaced invalid SVG version with "plain SVG" version which passes validation |
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