{"id":170,"date":"2011-11-28T05:44:24","date_gmt":"2011-11-28T05:44:24","guid":{"rendered":"http:\/\/afrotechmods.com\/tutorials\/?p=170"},"modified":"2020-05-28T20:26:42","modified_gmt":"2020-05-28T20:26:42","slug":"peak-detector-circuit-tutorial","status":"publish","type":"post","link":"http:\/\/afrotechmods.com\/tutorials\/2011\/11\/28\/peak-detector-circuit-tutorial\/","title":{"rendered":"Peak detector circuit tutorial"},"content":{"rendered":"<p>Peak detectors are used when you have a rapidly changing AC input signal, and you want to obtain the peak voltage the signal reaches. Peak detectors are really simple to make &#8211; just a diode and a capacitor in their simplest form. In the video I give an example where I use a peak detector to hold on to a peak audio level for several seconds. This video builds on circuits I built in my <a href=\"http:\/\/afrotechmods.com\/tutorials\/2011\/11\/28\/amplifier-tutorial-super-spy-microphone-circuit\/\">amplifier<\/a> and <a href=\"http:\/\/afrotechmods.com\/tutorials\/2011\/11\/28\/op-amp-comparator-tutorial-and-clapper-circuit\/\">comparator tutorials<\/a> so make sure you watch those first.<\/p>\n<style>.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }<\/style>\n<div class=\"embed-container\"><iframe src=\"https:\/\/www.youtube.com\/embed\/ic_yEUV7Y3c\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\" frameborder=\"0\"><\/iframe><\/div>\n<p>Bonus: <a href=\"https:\/\/www.circuitlab.com\/circuit\/y453h7\/precision-active-peak-detector\/\" target=\"_blank\" rel=\"noopener noreferrer\">Here is an online circuit simulation of a peak detector using an op-amp<\/a>. This technique incorporates what is sometimes called an &#8220;active diode&#8221;, &#8220;precision rectifier&#8221; or &#8220;superdiode&#8221;.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Peak detectors are used when you have a rapidly changing AC input signal, and you want to obtain the peak voltage the signal reaches. Peak detectors are really simple to make &#8211; just a diode and a capacitor in their simplest form. In the video I give an example where I use a peak detector [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1339,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5],"tags":[83,85,82],"class_list":["post-170","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-intermediate-tutorials","tag-op-amp","tag-operational-amplifier","tag-peak-detector"],"acf":[],"aioseo_notices":[],"jetpack_featured_media_url":"http:\/\/afrotechmods.com\/tutorials\/wp-content\/uploads\/2020\/05\/peak-detector-circuit-tutorial.jpg","_links":{"self":[{"href":"http:\/\/afrotechmods.com\/tutorials\/wp-json\/wp\/v2\/posts\/170","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/afrotechmods.com\/tutorials\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/afrotechmods.com\/tutorials\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/afrotechmods.com\/tutorials\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/afrotechmods.com\/tutorials\/wp-json\/wp\/v2\/comments?post=170"}],"version-history":[{"count":15,"href":"http:\/\/afrotechmods.com\/tutorials\/wp-json\/wp\/v2\/posts\/170\/revisions"}],"predecessor-version":[{"id":1341,"href":"http:\/\/afrotechmods.com\/tutorials\/wp-json\/wp\/v2\/posts\/170\/revisions\/1341"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/afrotechmods.com\/tutorials\/wp-json\/wp\/v2\/media\/1339"}],"wp:attachment":[{"href":"http:\/\/afrotechmods.com\/tutorials\/wp-json\/wp\/v2\/media?parent=170"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/afrotechmods.com\/tutorials\/wp-json\/wp\/v2\/categories?post=170"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/afrotechmods.com\/tutorials\/wp-json\/wp\/v2\/tags?post=170"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}