{"id":7818,"date":"2013-08-23T22:34:51","date_gmt":"2013-08-24T02:34:51","guid":{"rendered":"http:\/\/embedded-lab.com\/blog\/?p=7818"},"modified":"2013-08-23T22:34:51","modified_gmt":"2013-08-24T02:34:51","slug":"h-bridge-to-drive-white-led-arrays-directly-from-the-ac-mains-supply","status":"publish","type":"post","link":"https:\/\/embedded-lab.com\/blog\/h-bridge-to-drive-white-led-arrays-directly-from-the-ac-mains-supply\/","title":{"rendered":"H-Bridge to drive white LED arrays directly from the AC mains supply"},"content":{"rendered":"<p>The classical H-bridge circuit is widely popular in driving DC motors in robotics applications. This <strong><a href=\"http:\/\/www.edn.com\/design\/led\/4418299\/H-bridge-paves-new-ways-for-LED-lighting\" target=\"_blank\">article<\/a><\/strong> talks about a novel application of the H-bridge circuit for driving white-LED arrays directly from the AC mains in full-wave current-limited mode to realize an excellent flicker-free, energy-efficient solid-state lamp. The circuit controls and maintains the LED excitation current in both negative and positive half cycles of the excitation voltage to a constant level by way of electronic switches operating alternately during the positive and negative excursion of the excitation voltage.<\/p>\n<div id=\"attachment_7819\" style=\"width: 560px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/embedded-lab.com\/blog\/wp-content\/uploads\/2013\/08\/Hbridge_ckt.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-7819\" class=\"size-medium wp-image-7819\" title=\"Hbridge_ckt\" src=\"http:\/\/embedded-lab.com\/blog\/wp-content\/uploads\/2013\/08\/Hbridge_ckt-550x348.png\" alt=\"\" width=\"550\" height=\"348\" srcset=\"https:\/\/embedded-lab.com\/blog\/wp-content\/uploads\/2013\/08\/Hbridge_ckt-550x348.png 550w, https:\/\/embedded-lab.com\/blog\/wp-content\/uploads\/2013\/08\/Hbridge_ckt.png 850w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><p id=\"caption-attachment-7819\" class=\"wp-caption-text\">H-bridge circuit for driving white LED arrays<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>The classical H-bridge circuit is widely popular in driving DC motors in robotics applications. This article talks about a novel application of the H-bridge circuit for driving white-LED arrays directly from the AC mains in full-wave current-limited mode to realize an excellent flicker-free, energy-efficient solid-state lamp. The circuit controls and maintains the LED excitation current in both negative and positive half cycles of the excitation voltage to a constant level by way of electronic switches operating alternately during the positive and negative excursion of the excitation voltage.<\/p>\n","protected":false},"author":1,"featured_media":7819,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[227,183],"tags":[124,634,635],"class_list":["post-7818","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-tips-and-tricks","tag-h-bridge","tag-led-array","tag-mains-supply"],"_links":{"self":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts\/7818","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/comments?post=7818"}],"version-history":[{"count":2,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts\/7818\/revisions"}],"predecessor-version":[{"id":7821,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts\/7818\/revisions\/7821"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/media\/7819"}],"wp:attachment":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/media?parent=7818"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/categories?post=7818"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/tags?post=7818"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}