{"id":223637,"date":"2012-02-22T23:00:00","date_gmt":"2012-02-22T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/pilote-de-led-pour-applications-declairage-a-haut-rendement\/"},"modified":"2012-02-22T23:00:00","modified_gmt":"2012-02-22T23:00:00","slug":"pilote-de-led-pour-applications-declairage-a-haut-rendement","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/pilote-de-led-pour-applications-declairage-a-haut-rendement\/","title":{"rendered":"Pilote de LED pour applications d\u2019\u00e9clairage \u00e0 haut rendement"},"content":{"rendered":"<p style=\"margin-bottom: 0.0001pt\" class=\"MsoNormal\">La fonction variation de luminosit&eacute; est bas&eacute;e sur un circuit de d&eacute;tection d&rsquo;angle de conduction qui ajuste la brillance et traduit cette information sur la tension de sortie de la lampe LED. Int&eacute;gr&eacute;e dans ce composant, elle permet une r&eacute;duction d&rsquo;environ 40% de la taille du circuit de variation externe par rapport aux conceptions utilisant le pr&eacute;c&eacute;dent R2A20134. Au-del&agrave; d&rsquo;un circuit imprim&eacute; plus compact, le co&ucirc;t du d&eacute;veloppement est &eacute;galement r&eacute;duit car moins de composants externes sont n&eacute;cessaires.<br \/>\nUn changement de la valeur du courant est visible car il se traduit par une modification de la brillance des LED. De ce fait, pour fournir un niveau stable de luminosit&eacute;, les syst&egrave;mes d&rsquo;&eacute;clairage doivent absolument &ecirc;tre soumis &agrave; de faibles variations du courant. Ce pilote minimise la tension de r&eacute;f&eacute;rence pour contr&ocirc;ler le courant, dor&eacute;navant &eacute;gale &agrave; 0,2 V contre 0,6 V dans les pr&eacute;c&eacute;dents produits du catalogue. Ceci r&eacute;duit l&rsquo;instabilit&eacute; de 15% &agrave; 6%. De plus, ce circuit fait appel &agrave; une technologie propri&eacute;taire de contr&ocirc;le MOSFET &quot;high-side&quot; pour g&eacute;rer directement la valeur du courant de la LED. Ces contr&ocirc;les plus pr&eacute;cis contribuent &agrave; l&rsquo;obtention d&rsquo;une brillance plus stable.<br \/>\nLorsque ce pilote est choisi pour un syst&egrave;me d&rsquo;&eacute;clairage LED bas&eacute; sur la m&eacute;thode non-isol&eacute;e, la tol&eacute;rance en tension (VDSS) peut &ecirc;tre r&eacute;duite, ce qui permet aux concepteurs de remplacer le MOSFET de puissance 600 V par un MOSFET de puissance plus &eacute;conomique avec une VDSS inf&eacute;rieure &agrave; 450 V. <br \/>\nEn plus d&rsquo;un bo&icirc;tier identique, Il h&eacute;rite aussi du haut rendement et du fort rapport de puissance de son pr&eacute;d&eacute;cesseur , deux caract&eacute;ristiques critiques pour &eacute;conomiser de l&rsquo;&eacute;nergie dans les syst&egrave;mes d&rsquo;&eacute;clairage LED. Ces compatibilit&eacute;s permettent aux fabricants d&rsquo;installation d&rsquo;&eacute;clairage d&rsquo;&eacute;tendre leur famille de produits plus facilement.<br \/>\nUne carte d&rsquo;&eacute;valuation de contr&ocirc;le de LED, supportant la fonction variateur TRIAC, est propos&eacute;e comme outil de d&eacute;veloppement pour soutenir la conception de syst&egrave;mes incorporant ce composant. Avec un rendement de 85% ou plus en utilisant le variateur TRIAC, un facteur de puissance d&eacute;passant 0,9, et un taux de distorsion harmonique THD inf&eacute;rieur &agrave; 20%, cette carte affiche des performances &eacute;lev&eacute;es et contribue &agrave; un meilleur rendement &eacute;nerg&eacute;tique des syst&egrave;mes d&rsquo;&eacute;clairage LED. Un large portefeuille de produits dont une cinquantaine de composants p&eacute;riph&eacute;riques notamment des MOSFET de puissance dans la gamme de 450 V &agrave; 600 V et des diodes sont propos&eacute;s pour convenir &agrave; ce pilote de LED. \n<\/p>\n<p style=\"margin-bottom:0cm;margin-bottom:.0001pt\" class=\"MsoNormal\">&nbsp;<\/p>\n<p style=\"margin-bottom:0cm;margin-bottom:.0001pt\" class=\"MsoNormal\"><a href=\"http:\/\/www.renesas.eu\" target=\"_blank\" title=\"www.renesas.eu\" rel=\"noopener\">www.renesas.eu<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Renesas Electronics Europe annonce la disponibilit\u00e9 de son pilote de LED, le R2A20135SP, destin\u00e9 aux syst\u00e8mes d\u2019\u00e9clairage haute pr\u00e9cision et \u00e0 fort rendement \u00e9nerg\u00e9tique. Il int\u00e8gre la fonction de variation de luminosit\u00e9 et permet un gain d\u2019environ 40% sur la surface de montage. Il convient donc parfaitement aux fabricants d\u2019\u00e9clairage \u00e0 base de LED. Un portefeuille de MOSFET de puissance haute performance et une carte d\u2019\u00e9valuation sont \u00e9galement propos\u00e9s pour accompagner ce produit dans le pilotage des syst\u00e8mes d\u2019\u00e9clairage LED, offrant ainsi une solution globale r\u00e9unissant les deux types de composants.<\/p>\n","protected":false},"author":22,"featured_media":223638,"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-223637","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Pilote de LED pour applications d\u2019\u00e9clairage \u00e0 haut rendement ...<\/title>\n<meta name=\"description\" content=\"Renesas Electronics Europe annonce la disponibilit\u00e9 de son pilote de LED, le R2A20135SP, destin\u00e9 aux syst\u00e8mes d\u2019\u00e9clairage haute pr\u00e9cision et \u00e0 fort...\" \/>\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\/223637\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pilote de LED pour applications d\u2019\u00e9clairage \u00e0 haut rendement\" \/>\n<meta property=\"og:description\" content=\"Renesas Electronics Europe annonce la disponibilit\u00e9 de son pilote de LED, le R2A20135SP, destin\u00e9 aux syst\u00e8mes d\u2019\u00e9clairage haute pr\u00e9cision et \u00e0 fort rendement \u00e9nerg\u00e9tique. Il int\u00e8gre la fonction de variation de luminosit\u00e9 et permet un gain d\u2019environ 40% sur la surface de montage. Il convient donc parfaitement aux fabricants d\u2019\u00e9clairage \u00e0 base de LED. Un portefeuille de MOSFET de puissance haute performance et une carte d\u2019\u00e9valuation sont \u00e9galement propos\u00e9s pour accompagner ce produit dans le pilotage des syst\u00e8mes d\u2019\u00e9clairage LED, offrant ainsi une solution globale r\u00e9unissant les deux types de composants.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/223637\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2012-02-22T23:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/import\/eci6068_ren0368_renesas_electronics_driver_ic_r2a20135sp_s.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2391\" \/>\n\t<meta property=\"og:image:height\" content=\"1562\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"eeNews Europe\" \/>\n<meta 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