{"id":177595,"date":"2017-04-03T16:03:00","date_gmt":"2017-04-03T16:03:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/controleurs-dalimentation-pwm-integres-et-isoles\/"},"modified":"2017-04-03T16:03:00","modified_gmt":"2017-04-03T16:03:00","slug":"controleurs-dalimentation-pwm-integres-et-isoles","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/controleurs-dalimentation-pwm-integres-et-isoles\/","title":{"rendered":"Contr\u00f4leurs d\u2019alimentation PWM int\u00e9gr\u00e9s et isol\u00e9s"},"content":{"rendered":"

Ces contr\u00f4leurs PWM sont con\u00e7us pour les alimentations AC\/DC (ADP1071) et DC\/DC (ADP1072 et ADP1074) isol\u00e9es que l\u2019on trouve dans des alimentations universelles, industrielles ou de t\u00e9l\u00e9communications. Ils se caract\u00e9risent par l\u2019association unique d\u2019un contr\u00f4leur primaire et secondaire et de la technologie d\u2019isolation iCoupler dans un seul bo\u00eetier facile d\u2019utilisation et avec une r\u00e9gulation au secondaire. Par ailleurs, la technologie iCoupler affiche une bande passante \u00e9lev\u00e9e qui assure une excellente r\u00e9ponse aux transitoires et permet d\u2019utiliser un condensateur de sortie de plus faible valeur.
\nL\u2019int\u00e9gration de plusieurs fonctions telles que la protection contre les surtensions (OVP), le suivi des sorties, le mode \u00e0 faible charge pour une meilleure efficacit\u00e9 \u00e9nerg\u00e9tique, ainsi que des drivers pour la rectification synchrone qui requi\u00e8rent g\u00e9n\u00e9ralement plusieurs composants discrets, permet de r\u00e9duire de 35 % l\u2019espace occup\u00e9 sur la carte et d\u2019accro\u00eetre la fiabilit\u00e9 du syst\u00e8me.<\/p>\n

Les ADP1071-1 et ADP1071-2 sont des contr\u00f4leurs PWM flyback synchrones \u00e0 fr\u00e9quence fixe, mode courant, con\u00e7us respectivement pour des alimentations AC\/DC et DC\/DC isol\u00e9es. La technologie iCoupler int\u00e9gr\u00e9e remplace le volumineux transformateur de puissance et l\u2019optocoupleur tout en r\u00e9duisant la complexit\u00e9 de conception, le co\u00fbt et le nombre de composants et en am\u00e9liorant la fiabilit\u00e9 globale du syst\u00e8me.
\nGr\u00e2ce \u00e0 l\u2019isolation int\u00e9gr\u00e9e et aux drivers primaires et secondaires, ces contr\u00f4leurs PWM permettent une conception syst\u00e8me compacte qui assure un rendement sup\u00e9rieur \u00e0 celui d\u2019un convertisseur flyback \u00e0 redressement asynchrone par diode pour des charges \u00e9lev\u00e9es.
\nLa version indice 1 est compatible avec des applications \u00e0 tension d\u2019entr\u00e9e \u00e9lev\u00e9e de 90 V \u00e0 264 V AC, alors que celle d\u2019indice 2 est utilisable pour des tensions d\u2019entr\u00e9e comprises entre 4.5 V et 60 V DC.
\nEncapsul\u00e9es dans des bo\u00eetiers SOIC large \u00e0 16 contacts, ces deux r\u00e9f\u00e9rences conviennent particuli\u00e8rement \u00e0 la conversion isol\u00e9e DC\/DC et AC\/DC, aux solutions aliment\u00e9es par Ethernet (PoE) et aux commutateurs\/routeurs d\u2019entreprise utilis\u00e9s dans les applications industrielles et de t\u00e9l\u00e9communications.<\/p>\n

\n

L\u2019ADP1074 est un contr\u00f4leur forward synchrone \u00e0 clamp actif fonctionnant \u00e0 fr\u00e9quence fixe en mode courant, \u00e9galement con\u00e7u pour les alimentations DC\/DC isol\u00e9es. La technologie iCoupler int\u00e9gr\u00e9e remplace le volumineux transformateur de puissance et l\u2019optocoupleur qui transmet un signal au travers de barri\u00e8re d\u2019isolation. Avec les isolateurs int\u00e9gr\u00e9s et les drivers de MOSFET primaires et secondaires, ce mod\u00e8le permet une conception compacte au niveau syst\u00e8me avec un rendement sup\u00e9rieur \u00e0 celui d\u2019un convertisseur forward asynchrone pour des charges \u00e9lev\u00e9es.
\nPropos\u00e9 en bo\u00eetier SOIC large \u00e0 24 contacts, ce composant est bien adapt\u00e9 \u00e0 la conversion DC\/DC dans de nombreuses applications telles que la g\u00e9n\u00e9ration de tension de bus interm\u00e9diaire, l\u2019alimentation RF des stations de base et de l\u2019antenne, les p\u00e9riph\u00e9riques aliment\u00e9s par Ethernet (PoE), les commutateurs-routeurs d\u2019entreprise et les modules de puissance utilis\u00e9s dans les \u00e9quipements industriels et de t\u00e9l\u00e9communications.<\/p>\n

analog.com\/ADP1071-1<\/a><\/p>\n

analog.com\/ADP1071-2<\/a><\/p>\n

analog.com\/ADP1074<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Pour simplifier la conception et am\u00e9liorer la fiabilit\u00e9 au niveau syst\u00e8me, Analog Devices introduit une s\u00e9rie de trois contr\u00f4leurs \u00e0 modulation de largeur d’impulsions PWM avec une isolation int\u00e9gr\u00e9e jusqu\u2019\u00e0 5 kV utilisant la technologie propri\u00e9taire iCoupler. Les ADP1071-1 et ADP1071-2 sont des contr\u00f4leurs flyback synchrones isol\u00e9s, tandis que l\u2019ADP1074 est un contr\u00f4leur forward synchrone \u00e0 clamp actif et isol\u00e9.<\/p>\n","protected":false},"author":9,"featured_media":177596,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[890],"domains":[47],"ppma_author":[1141],"class_list":["post-177595","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","tag-powermanagement-fr","domains-electronique-eci"],"acf":[],"yoast_head":"Contr\u00f4leurs d\u2019alimentation PWM int\u00e9gr\u00e9s et isol\u00e9s ...<\/title>\n<meta name=\"description\" content=\"Pour simplifier la conception et am\u00e9liorer la fiabilit\u00e9 au niveau syst\u00e8me, Analog Devices introduit une s\u00e9rie de trois contr\u00f4leurs \u00e0 modulation de...\" \/>\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\/177595\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Contr\u00f4leurs d\u2019alimentation PWM int\u00e9gr\u00e9s et isol\u00e9s\" \/>\n<meta property=\"og:description\" content=\"Pour simplifier la conception et am\u00e9liorer la fiabilit\u00e9 au niveau syst\u00e8me, Analog Devices introduit une s\u00e9rie de trois contr\u00f4leurs \u00e0 modulation de largeur d'impulsions PWM avec une isolation int\u00e9gr\u00e9e jusqu\u2019\u00e0 5 kV utilisant la technologie propri\u00e9taire iCoupler. Les ADP1071-1 et ADP1071-2 sont des contr\u00f4leurs flyback synchrones isol\u00e9s, tandis que l\u2019ADP1074 est un contr\u00f4leur forward synchrone \u00e0 clamp actif et isol\u00e9.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/177595\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2017-04-03T16:03:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/sites\/default\/files\/images\/eci8473_analog_adp107x-rgb-850x850-title-web.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"850\" \/>\n\t<meta property=\"og:image:height\" content=\"850\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Alain Dieul\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" 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