{"id":168939,"date":"2017-06-19T02:04:09","date_gmt":"2017-06-19T02:04:09","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/controleur-de-led-automobile-evitant-les-compromis-entre-temps-de-reponse-rapide-et-faible-niveau-emi\/"},"modified":"2017-06-19T02:04:09","modified_gmt":"2017-06-19T02:04:09","slug":"controleur-de-led-automobile-evitant-les-compromis-entre-temps-de-reponse-rapide-et-faible-niveau-emi","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/controleur-de-led-automobile-evitant-les-compromis-entre-temps-de-reponse-rapide-et-faible-niveau-emi\/","title":{"rendered":"Contr\u00f4leur de LED automobile \u00e9vitant les compromis entre temps de r\u00e9ponse rapide et faible niveau EMI"},"content":{"rendered":"<p>Id\u00e9al pour la conception de syst\u00e8mes d\u2019\u00e9clairage matriciel, ce contr\u00f4leur de LED permet aux concepteurs d\u2019obtenir des performances \u00e9lev\u00e9es, une grande souplesse de conception, et un \u00ab time-to-market \u00bb rapide. Pour les applications d\u2019\u00e9clairage avanc\u00e9es comme l\u2019\u00e9clairage matriciel, les drivers et les contr\u00f4leurs de LED peuvent provoquer des \u00ab overshoots \u00bb ou des \u00ab undershoots \u00bb \u00e0 cause des commutations rapides de forts courants dans les LEDs. De telles applications sont difficiles \u00e0 concevoir, car elles font appel \u00e0 un grand nombre de LEDs regroup\u00e9es dans un espace tr\u00e8s limit\u00e9 o\u00f9 les parasites \u00e9lectromagn\u00e9tiques sont particuli\u00e8rement difficiles \u00e0 \u00e9liminer. Les constructeurs automobiles d\u00e9pensent ainsi beaucoup de temps, d&rsquo;argent, et d&rsquo;efforts pour r\u00e9duire au maximum les parasites \u00e9lectromagn\u00e9tiques en exp\u00e9rimentant diff\u00e9rentes implantations et diff\u00e9rentes m\u00e9thodes de filtrage.<br \/>\nLa boucle d\u2019asservissement du MAX20078 pr\u00e9sente un temps de r\u00e9ponse ultra-rapide garantissant une excellente r\u00e9ponse du circuit aux transitoires. Tandis qu\u2019il permet de se passer de composants de compensation externes, il offre \u00e9galement un \u00ab&nbsp;ratio dimming&nbsp;\u00bb tr\u00e8s large, ainsi qu\u2019un circuit de surveillance et de protection contre les d\u00e9fauts. Le MAX20078 permet une commutation rapide des LEDs et un faible niveau EMI, ce qui \u00e9vite aux concepteurs d\u2019avoir \u00e0 faire des compromis entre l\u2019un et l&rsquo;autre. Ces avantages, associ\u00e9s \u00e0 une conception simplifi\u00e9e et \u00e0 une grande flexibilit\u00e9 au niveau des fr\u00e9quences de d\u00e9coupage, permettent aux concepteurs de lancer plus rapidement leurs produits sur le march\u00e9.<\/p>\n<p><a href=\"https:\/\/www.maximintegrated.com\/MAX20078\">www.maximintegrated.com\/MAX20078<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le contr\u00f4leur abaisseur synchrone pour LED haute luminosit\u00e9, MAX20078, de Maxim Integrated Products, Inc. est le seul produit sur le march\u00e9 offrant \u00e0 la fois un temps de r\u00e9ponse rapide et un faible niveau EMI (Electro Magnetic Interference) pour les \u00e9clairages ext\u00e9rieurs \u00e0 LED.<\/p>\n","protected":false},"author":9,"featured_media":168940,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1141],"class_list":["post-168939","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Contr\u00f4leur de LED automobile \u00e9vitant les compromis entre temp...<\/title>\n<meta name=\"description\" content=\"Le contr\u00f4leur abaisseur synchrone pour LED haute luminosit\u00e9, MAX20078, de Maxim Integrated Products, Inc. est le seul produit sur le march\u00e9 offrant \u00e0 la...\" \/>\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\/168939\/\" 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