{"id":224381,"date":"2012-05-28T22:00:00","date_gmt":"2012-05-28T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/modules-compacts-pour-amplificateurs-audio\/"},"modified":"2012-05-28T22:00:00","modified_gmt":"2012-05-28T22:00:00","slug":"modules-compacts-pour-amplificateurs-audio","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/modules-compacts-pour-amplificateurs-audio\/","title":{"rendered":"Modules compacts pour amplificateurs audio"},"content":{"rendered":"<p class=\"MsoNormal\" style=\"margin-bottom:0cm;margin-bottom:.0001pt\">Ces composants embarquent un contr&ocirc;leur PWM et deux MOSFET de puissance audio num&eacute;rique dans un seul bo&icirc;tier, et constituent une solution compacte &agrave; fort rendement qui permet de limiter le nombre de composants, r&eacute;duire la taille du circuit imprim&eacute; jusqu&rsquo;&agrave; 70 % et simplifier la conception des amplificateurs audio en classe D. Combiner un circuit de commande audio avanc&eacute; et des MOSFET enti&egrave;rement optimis&eacute;s pour l&rsquo;audio, permet d&rsquo;am&eacute;liorer le rendement, la distorsion harmonique totale (THD) et les &eacute;missions &eacute;lectromagn&eacute;tiques (EMI). Ces modules peuvent ainsi fonctionner sans dissipateur m&eacute;canique sur une large gamme de puissances, dans le cadre d&rsquo;une alimentation simple ou s&eacute;par&eacute;e. L&rsquo;immunit&eacute; au bruit et la tenue en tension &eacute;lev&eacute;e assurent un fonctionnement fiable dans des conditions d&rsquo;utilisation vari&eacute;es.<br \/>\nLe composant monocanal IR4301M et celui &agrave; deux canaux IR4302M constituent des solutions flexibles et adapt&eacute;es &agrave; la conception d&rsquo;amplificateurs st&eacute;r&eacute;o et multicanaux dans diverses configurations de canaux. Leurs bo&icirc;tiers PQFN de respectivement 5 x 6 mm et 7 x 7 mm offrent l&rsquo;avantage de permettre des topologies d&rsquo;amplification en classe D plus compactes.<br \/>\nParmi les autres fonctionnalit&eacute;s essentielles de cette famille figurent une protection en surintensit&eacute;, une coupure thermique, une coupure interne\/externe et une entr&eacute;e flottante diff&eacute;rentielle. La version deux canaux offre &eacute;galement la d&eacute;tection de saturation (clipping). Ces composants sont qualifi&eacute;s MSL2 pour l&rsquo;industrie et conformes RoHS. Des cartes d&rsquo;&eacute;valuation sont disponibles pour simplifier davantage leur mise en &oelig;uvre.<\/p>\n<p class=\"MsoNormal\" style=\"margin-bottom:0cm;margin-bottom:.0001pt\">&nbsp;<\/p>\n<p class=\"MsoNormal\" style=\"margin-bottom:0cm;margin-bottom:.0001pt\"><a title=\"www.irf.com\" target=\"_blank\" href=\"http:\/\/www.irf.com\" rel=\"noopener\">www.irf.com<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>International Rectifier vient de lancer la famille PowIRaudio IR43xxM, des modules de puissance int\u00e9gr\u00e9s, destin\u00e9s aux syst\u00e8mes home cin\u00e9ma et aux amplificateurs audio automobiles de hautes performances.<\/p>\n","protected":false},"author":22,"featured_media":224382,"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-224381","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Modules compacts pour amplificateurs audio ...<\/title>\n<meta name=\"description\" content=\"International Rectifier vient de lancer la famille PowIRaudio IR43xxM, des modules de puissance int\u00e9gr\u00e9s, destin\u00e9s aux syst\u00e8mes home cin\u00e9ma et aux...\" \/>\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\/224381\/\" \/>\n<meta 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