{"id":216498,"date":"2016-04-01T07:00:00","date_gmt":"2016-04-01T07:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/circuit-de-commutation-de-securite-900-v-fonctionnant-meme-en-presence-de-surtensions\/"},"modified":"2016-04-01T07:00:00","modified_gmt":"2016-04-01T07:00:00","slug":"circuit-de-commutation-de-securite-900-v-fonctionnant-meme-en-presence-de-surtensions","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/circuit-de-commutation-de-securite-900-v-fonctionnant-meme-en-presence-de-surtensions\/","title":{"rendered":"Circuit de commutation de s\u00e9curit\u00e9 900 V fonctionnant m\u00eame en pr\u00e9sence de surtensions"},"content":{"rendered":"<p>Ce circuit 900 V offre un rendement particuli\u00e8rement efficace de typiquement 85% pour une conception 18 W \u00e0 deux sorties. Il n&rsquo;adonc pas besoin de dissipateurs thermiques et autorise la mise en \u0153uvre d&rsquo;alimentations au format tr\u00e8s compact.<\/p>\n<p>\u00ab\u00a0Les concepteurs de syst\u00e8mes \u00e0 haute tension ont souvent \u00e0 leur disposition, des m\u00e9gawatts de puissance \u00e0 partir desquels ils doivent se procurer quelques milliwatts pour alimenter un syst\u00e8me \u00e0 microprocesseur basse-tension, ou quelques dizaines de watts pour des commandes de grille inverseur,\u00a0\u00bb explique David Chen, Director of applications engineering chez Power Integrations. \u00ab\u00a0Les nouveaux dispositifs 900 V InnoSwitch-EP simplifient radicalement la conception d&rsquo;alimentations robustes extr\u00eamement fiables qui fonctionnent \u00e0 partir des tensions industrielles habituelles.\u00a0\u00bb<\/p>\n<p>Cette famille de circuits de commutation emploie la technologie propri\u00e9taire de couplage magn\u00e9to-inductif de s\u00e9curit\u00e9 FluxLink et exploite un redressement synchrone avec une r\u00e9gulation pr\u00e9cise au secondaire. Il en r\u00e9sulte des circuits d&rsquo;alimentation hautement efficaces et extr\u00eamement fiables qui ne n\u00e9cessitent pas d&rsquo;optocoupleur.<\/p>\n<p>Cette derni\u00e8re version int\u00e8gre un MOSFET de puissance 900 V augment\u00e9 qui donne une marge de fonctionnement importante pour les syst\u00e8mes industriels 450 VAC, en am\u00e9liore la fiabilit\u00e9 et en prolonge la dur\u00e9e de vie. Fonctionnant en continu avec jusqu&rsquo;\u00e0 450 VAC de tension d&rsquo;entr\u00e9e, ce circuit b\u00e9n\u00e9ficie, en option, d&rsquo;une couche de protection sous-tensions\/surtensions du secteur qui l&#8217;emp\u00eache de commuter et le prot\u00e8ge jusqu&rsquo;\u00e0 650 VAC. Cette souplesse est un avantage consid\u00e9rable pour les concepteurs d&rsquo;alimentations devant s&rsquo;adapter \u00e0 toutes les installations dans le monde entier.<\/p>\n<p>Ce dispositif &nbsp;900 V am\u00e9liore la fiabilit\u00e9 des alimentations en ne n\u00e9cessitant qu&rsquo;un petit nombre de composants pour la nomenclature et en \u00e9liminant la n\u00e9cessit\u00e9 d&rsquo;utiliser des optocoupleurs qui se d\u00e9gradent avec le temps. Il surpasse les exigences des normes d&rsquo;efficacit\u00e9 \u00e9nerg\u00e9tique telles que l\u2019ENERGY STAR, les codes de conduite (CoC)) de la commission \u00e9nerg\u00e9tique de Californie et de l&rsquo;Union Europ\u00e9enne, la directive ErP Directive et les normes du Department of Energy aux \u00c9tats-Unis. Il est accr\u00e9dit\u00e9 par les normes de s\u00e9curit\u00e9 UL1577 et TUV (EN60950) et conforme aux normes EN61000-4-8 (100 A\/m) et EN61000-4-9 (1000 A\/m).<\/p>\n<p><a href=\"http:\/\/www.power.com\/innoswitch-ep\" target=\"_blank\" rel=\"noopener\">www.power.com\/innoswitch-ep<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>La famille de circuits de commutation flyback hors ligne \u00e0 tension constante\/courant constant (CV\/CC) InnoSwitch-EP de Power Integrations s\u2019\u00e9tend avec une version 900 V. Celle-ci cible les alimentations \u00e9lectriques des compteurs, \u00e9nergies renouvelables ou standards qui, \u00e0 partir de sources continues \u00e0 haute tension et de sources triphas\u00e9es industrielles, doivent fonctionner en continu, m\u00eame en pr\u00e9sence de surtensions. <\/p>\n","protected":false},"author":9,"featured_media":216499,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[909,890],"domains":[47],"ppma_author":[1141],"class_list":["post-216498","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","tag-batteries-power-supplies-fr","tag-powermanagement-fr","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Circuit de commutation de s\u00e9curit\u00e9 900 V fonctionnant m\u00eame e...<\/title>\n<meta name=\"description\" content=\"La famille de circuits de commutation flyback hors ligne \u00e0 tension constante\/courant constant (CV\/CC) InnoSwitch-EP de Power Integrations s\u2019\u00e9tend avec...\" \/>\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\/216498\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Circuit de commutation de s\u00e9curit\u00e9 900 V fonctionnant m\u00eame en pr\u00e9sence de surtensions\" \/>\n<meta property=\"og:description\" content=\"La famille de circuits de commutation flyback hors ligne \u00e0 tension constante\/courant constant (CV\/CC) InnoSwitch-EP de Power Integrations s\u2019\u00e9tend avec une version 900 V. Celle-ci cible les alimentations \u00e9lectriques des compteurs, \u00e9nergies renouvelables ou standards qui, \u00e0 partir de sources continues \u00e0 haute tension et de sources triphas\u00e9es industrielles, doivent fonctionner en continu, m\u00eame en pr\u00e9sence de surtensions.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/216498\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2016-04-01T07:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/sites\/default\/files\/images\/eci7771_power_integrations_pi_innoswitch_900v.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2100\" \/>\n\t<meta property=\"og:image:height\" content=\"1500\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Alain Dieul\" \/>\n<meta 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