{"id":216679,"date":"2016-03-30T23:00:00","date_gmt":"2016-03-30T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/controleurs-analogiques-dalimentation-de-led-numeriquement-ameliores\/"},"modified":"2016-03-30T23:00:00","modified_gmt":"2016-03-30T23:00:00","slug":"controleurs-analogiques-dalimentation-de-led-numeriquement-ameliores","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/controleurs-analogiques-dalimentation-de-led-numeriquement-ameliores\/","title":{"rendered":"Contr\u00f4leurs analogiques d\u2019alimentation de LED num\u00e9riquement am\u00e9lior\u00e9s"},"content":{"rendered":"<p>L\u2019efficacit\u00e9 et la long\u00e9vit\u00e9 ont toujours \u00e9t\u00e9 des moteurs pour l\u2019adoption des LED. Cependant, la qualit\u00e9 d\u2019\u00e9clairage reste l\u2019un des crit\u00e8res principaux \u00e0 prendre en compte. La couleur, la luminosit\u00e9 et la facilit\u00e9 de contr\u00f4le sont la base du succ\u00e8s d\u2019un produit d\u2019\u00e9clairage.<br \/>\nAssociant puissance et performance en un seul contr\u00f4leur de type analogique, mais dot\u00e9 de la flexibilit\u00e9 d\u2019une interface num\u00e9rique, ces deux circuits sont des contr\u00f4leurs de modulation en largeur d\u2019impulsion (MLI ou PWM) dot\u00e9s d\u2019un c\u0153ur de microcontr\u00f4leur PIC totalement int\u00e9gr\u00e9, donnant la possibilit\u00e9 de r\u00e9aliser des \u00e9conomies tout en affichant les meilleurs niveaux en termes de fiabilit\u00e9, efficacit\u00e9 et qualit\u00e9 d\u2019\u00e9clairage.<br \/>\nGr\u00e2ce \u00e0 ses possibilit\u00e9s de communication et configuration, cette interface num\u00e9rique autorise la commande et le contr\u00f4le d\u2019\u00e9tat \u00e0 distance par un sous-syst\u00e8me. Cette fonctionnalit\u00e9 est n\u00e9cessaire pour ajouter l\u2019\u00e9clairage \u00e0 de nombreuses applications, en particulier sur les objets connect\u00e9s embarqu\u00e9s et\/ou accessibles \u00e0 distance.<\/p>\n<p>Supportant une tension d\u2019entr\u00e9e allant de 4.5 V \u00e0 42 V, ces deux contr\u00f4leurs sont fonctionnellement \u00e9quivalents, mais le MCP19117 offre plus de GPIO et une interface de d\u00e9bogage.<\/p>\n<p>Une carte d\u2019\u00e9valuation pour ce dernier a \u00e9t\u00e9 d\u00e9velopp\u00e9e en configuration Flyback pour alimenter des charges \u00e0 courant constant jusqu\u2019\u00e0 50&nbsp;V. Elle s\u2019av\u00e8re particuli\u00e8rement adapt\u00e9e pour piloter une cha\u00eene de LED aliment\u00e9e en moyenne tension.<br \/>\nEn outre, la suite compl\u00e8te d\u2019outils de d\u00e9veloppement propri\u00e9taire, comprenant l\u2019environnement de d\u00e9veloppement MPLAB X ainsi qu\u2019un plug-in sp\u00e9cialement con\u00e7u pour ces contr\u00f4leurs analogiques d\u2019alimentation num\u00e9riquement am\u00e9lior\u00e9s, est \u00e9galement propos\u00e9.<\/p>\n<p>Le MCP19116 est livr\u00e9 en bo\u00eetier QFN-24 de&nbsp;4&nbsp;x&nbsp;4 mm tandis que le MCP19117 est en bo\u00eetier QFN-28 de 5&nbsp;x&nbsp;5 mm.<\/p>\n<p><a href=\"http:\/\/www.microchip.com\/MCP19116-032216a\" target=\"_blank\" rel=\"noopener\">www.microchip.com\/MCP19116<\/a><br \/>\n<a href=\"http:\/\/www.microchip.com\/MCP19117-032216b\" target=\"_blank\" rel=\"noopener\">www.microchip.com\/MCP19117<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Con\u00e7us pour les applications d\u2019\u00e9clairage par LED de nouvelle g\u00e9n\u00e9ration, les contr\u00f4leurs analogiques d\u2019alimentation num\u00e9riquement am\u00e9lior\u00e9s MCP19116 et MCP19117 de Microchip augmentent la pr\u00e9cision et fournissent aux utilisateurs un contr\u00f4le pr\u00e9cis des niveaux de sortie de l\u2019\u00e9clairage par LED, sans pour autant sacrifier la couleur ou la qualit\u00e9 d\u2019\u00e9clairage, ceci pour des applications fiables avec une longue dur\u00e9e de vie.<\/p>\n","protected":false},"author":9,"featured_media":216680,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[909,892,890],"domains":[47],"ppma_author":[1141],"class_list":["post-216679","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","tag-batteries-power-supplies-fr","tag-ledlighting-fr","tag-powermanagement-fr","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Contr\u00f4leurs analogiques d\u2019alimentation de LED num\u00e9riquement...<\/title>\n<meta name=\"description\" content=\"Con\u00e7us pour les applications d\u2019\u00e9clairage par LED de nouvelle g\u00e9n\u00e9ration, les contr\u00f4leurs analogiques d\u2019alimentation num\u00e9riquement am\u00e9lior\u00e9s...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" 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