{"id":221297,"date":"2011-03-16T23:00:00","date_gmt":"2011-03-16T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/controleur-de-del-autonome-isole-a-correction-active-du-facteur-de-puissance-reglage-par-triac-sans-photocoupleur\/"},"modified":"2011-03-16T23:00:00","modified_gmt":"2011-03-16T23:00:00","slug":"controleur-de-del-autonome-isole-a-correction-active-du-facteur-de-puissance-reglage-par-triac-sans-photocoupleur","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/controleur-de-del-autonome-isole-a-correction-active-du-facteur-de-puissance-reglage-par-triac-sans-photocoupleur\/","title":{"rendered":"Contr\u00f4leur de DEL, autonome, isol\u00e9, \u00e0 correction active du facteur de puissance, r\u00e9glage par TRIAC, sans photocoupleur"},"content":{"rendered":"<p>Linear Technology annonce le <a href=\"http:\/\/www.linear.com\/3799\">LT3799<\/a><a name=\"_Hlt284317100\"><\/a>, un contr&ocirc;leur de DEL, isol&eacute;, &agrave; correction active du facteur de puissance (PFC), con&ccedil;u sp&eacute;cialement pour piloter des DEL, &agrave; partir d&rsquo;une gamme de tensions alternatives d&rsquo;entr&eacute;e universelle de 90 V &agrave; 265 V. Le LT3799 est optimis&eacute; pour les applications &agrave; DEL n&eacute;cessitant une puissance de DEL de 4 W &agrave; 100 W, et est aussi compatible avec les gradateurs de lumi&egrave;re, muraux, &agrave; TRIAC standard. Le sch&eacute;ma unique de d&eacute;tection de courant du LT3799 fournit un courant r&eacute;gul&eacute; au secondaire, sans utiliser de photocoupleur. Ceci ne r&eacute;duit pas seulement le co&ucirc;t mais aussi am&eacute;liore la fiabilit&eacute;. Sa conception &agrave; un &eacute;tage r&eacute;gulateur PFC requiert un minimum de composants externes. De plus, son bo&icirc;tier MSOP-16E, &agrave; performances thermiques renforc&eacute;es, assure une solution simple, d&#8217;empreinte compacte, pour les applications autonomes &agrave; DEL.<\/p>\n<p>Le LT3799 pr&eacute;sente un rendement sup&eacute;rieur &agrave; 86%, supprimant le besoin de radiateurs externes pour le circuit int&eacute;gr&eacute; du pilote de DEL, dans la plupart des applications. Un circuit interne, sp&eacute;cial, procure une PFC active jusqu&rsquo;&agrave; 0,977, r&eacute;pondant aux demandes du D&eacute;partement d&rsquo;&eacute;nergie (DOE) de l&rsquo;industrie et respectant la norme IEC 61000-3-2 relative aux harmoniques des &eacute;quipements d&rsquo;&eacute;clairage de classe C. Le LT3799 peut &ecirc;tre utilis&eacute; avec un gradateur de lumi&egrave;re mural standard, &agrave; TRIAC, sans scintillement visible. Une protection en cas de DEL ouverte ou en court-circuit assure une fiabilit&eacute; &agrave; long terme pour une large gamme d&rsquo;applications &agrave; DEL. <\/p>\n<p>Le LT3799EMSE est disponible en bo&icirc;tier MSOP de 16 broches, &agrave; performances thermiques renforc&eacute;es. Il est disponible sur stock. Une version de classe &quot;&nbsp;I&nbsp;&quot;, &agrave; gamme de temp&eacute;ratures plus large, le LT3799IMSE est &eacute;galement disponible sur stock. Pour plus d&rsquo;informations, visiter le site <a href=\"http:\/\/www.linear.com\/\">www.linear.com<\/a><a name=\"_Hlt268590630\"><\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Linear Technology annonce le LT3799, un contr&ocirc;leur de DEL, isol&eacute;, &agrave; correction active du facteur de puissance (PFC), con&ccedil;u sp&eacute;cialement pour piloter des DEL, &agrave; partir d&rsquo;une gamme de tensions alternatives d&rsquo;entr&eacute;e universelle de 90 V &agrave; 265 V. Le LT3799 est optimis&eacute; pour les applications &agrave; DEL n&eacute;cessitant une puissance de DEL de 4 [&hellip;]<\/p>\n","protected":false},"author":22,"featured_media":221298,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1149],"class_list":["post-221297","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Contr\u00f4leur de DEL, autonome, isol\u00e9, \u00e0 correction active du f...<\/title>\n<meta name=\"description\" content=\"Linear Technology annonce le LT3799, un contr&ocirc;leur de DEL, isol&eacute;, &agrave; correction active du facteur de puissance (PFC), con&ccedil;u...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/221297\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Contr\u00f4leur de DEL, autonome, isol\u00e9, \u00e0 correction active du facteur de puissance, r\u00e9glage par TRIAC, sans photocoupleur\" \/>\n<meta property=\"og:description\" content=\"Linear Technology annonce le LT3799, un contr&ocirc;leur de DEL, isol&eacute;, &agrave; correction active du facteur de puissance (PFC), con&ccedil;u sp&eacute;cialement pour piloter des DEL, &agrave; partir d&rsquo;une gamme de tensions alternatives d&rsquo;entr&eacute;e universelle de 90 V &agrave; 265 V. 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