{"id":225358,"date":"2012-10-14T22:00:00","date_gmt":"2012-10-14T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/puces-dalimentation-a-decoupage-off-line\/"},"modified":"2012-10-14T22:00:00","modified_gmt":"2012-10-14T22:00:00","slug":"puces-dalimentation-a-decoupage-off-line","status":"publish","type":"post","link":"https:\/\/test.ecinews.fr\/fr\/puces-dalimentation-a-decoupage-off-line\/","title":{"rendered":"Puces d\u2019alimentation \u00e0 d\u00e9coupage off-line"},"content":{"rendered":"<p class=\"MsoNormal\">Le rendement de plus de 70 % &agrave; 5 % de la charge permet de se conformer aux s&eacute;v&egrave;res sp&eacute;cifications europ&eacute;ennes de consommation de veille qui entreront en vigueur en 2013 et la consommation sans charge de moins de 30 mW &agrave; 230 Vac satisfait aux exigences actuelles d&rsquo;&eacute;conomies d&rsquo;&eacute;nergie. La protection contre les surcharges par ligne de compensation est tr&egrave;s utile dans les applications comme les PC et les appareils en veille o&ugrave; la charge est susceptible d&rsquo;appeler un courant inhabituellement &eacute;lev&eacute;, ce qui peut indiquer une faute. Une prompte r&eacute;action de l&rsquo;alimentation permettra de limiter le courant &agrave; une valeur maximum pr&eacute;d&eacute;finie et d&rsquo;&eacute;viter d&rsquo;endommager le circuit, am&eacute;liorant la s&eacute;curit&eacute; et la fiabilit&eacute; du syst&egrave;me. La limite de courant du MOSFET est s&eacute;lectionnable via la broche BP\/M, afin d&rsquo;optimiser la puissance d&eacute;livr&eacute;e et le rendement selon l&rsquo;impl&eacute;mentation physique. Une fonction d&rsquo;extension du temps &agrave; l&rsquo;&eacute;tat &quot;ON&quot; o&ugrave; le courant minimum de r&eacute;gulation est abaiss&eacute;, permet de respecter les sp&eacute;cifications de temps de maintien de l&rsquo;alimentation avec de plus faibles capacit&eacute;s d&rsquo;entr&eacute;e. Le circuit comporte une protection par verrouillage contre les surtensions de sortie (OVP), configurable pour une r&eacute;initialisation rapide de l&rsquo;alimentation AC en connectant la r&eacute;sistance de la broche EN\/UV &agrave; la ligne d&rsquo;entr&eacute;e AC. La fonction Auto-restart est am&eacute;lior&eacute;e et limite la puissance d&eacute;livr&eacute;e durant une faute de sortie &agrave; moins de 3% de la valeur nominale &agrave; pleine charge.<br \/>\n&quot;Le nom TinySwitch-4 est synonyme d&rsquo;excellent rendement en mode veille et de facilit&eacute; de conception,&quot; commente&nbsp; Chris Lee, directeur de marketing produit chez Power Integrations. &quot;Le haut niveau d&rsquo;int&eacute;gration et le jeu tr&egrave;s complet de protections syst&egrave;me des puces TinySwitch-4 permet de cr&eacute;er des alimentations ultra simples qui se conforment ais&eacute;ment aux sp&eacute;cifications de s&eacute;curit&eacute;, aussi bien qu&rsquo;&agrave; tous les standards d&rsquo;efficacit&eacute; &eacute;nerg&eacute;tique actuels et &agrave; venir, comme Energy Star EPS v2.0 et la directive europ&eacute;enne d&rsquo;&eacute;coconception des produits li&eacute;s &agrave; l&rsquo;&eacute;nergie (ErP Ecodesign Directive Tier 2). Point important, les puces TinySwitch-4 sont compatibles au niveau du brochage avec les TinySwitch-III, ce qui simplifie la migration.&quot;<br \/>\nCes puces d&rsquo;alimentation couvrent une large gamme de puissances allant jusqu&rsquo;&agrave; 36,5&nbsp;W et s&rsquo;adressent &agrave; des applications d&rsquo;alimentations de veille de PC ou autres alimentations auxiliaires basse consommation des secteurs domestiques, industriels, compteurs &eacute;nerg&eacute;tiques, chargeurs, etc. Elles sont propos&eacute;es en bo&icirc;tiers standard PDIP et SOIC, ainsi qu&rsquo;en bo&icirc;tier CMS derni&egrave;re g&eacute;n&eacute;ration eSOP qui permet d&rsquo;&eacute;liminer les drains thermiques externes en utilisant les surfaces de cuivre de la carte pour la dissipation de chaleur.<\/p>\n<p class=\"MsoNormal\"><a title=\"www.powerint.com\/en\/products\/tinyswitch-family\/tinyswitch-4\" target=\"_blank\" href=\"http:\/\/www.powerint.com\/en\/products\/tinyswitch-family\/tinyswitch-4\" rel=\"noopener\">www.powerint.com\/en\/products\/tinyswitch-family\/tinyswitch-4<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Int\u00e9grant une protection contre les surcharges par ligne de compensation, les puces d\u2019alimentation \u00e0 d\u00e9coupage off-line TinySwitch-4 de Power Integrations r\u00e9duisent spectaculairement la surpuissance maximum susceptible d\u2019\u00eatre d\u00e9livr\u00e9e \u00e0 la charge \u00e0 travers la plage de tension d\u2019entr\u00e9e alternative. Leur MOSFET de 725 V supporte ais\u00e9ment un derating de 80 % pour les concepts \u00e0 tension r\u00e9fl\u00e9chie ou tension de bus \u00e9lev\u00e9es.<\/p>\n","protected":false},"author":22,"featured_media":225359,"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-225358","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Puces d\u2019alimentation \u00e0 d\u00e9coupage off-line ...<\/title>\n<meta name=\"description\" content=\"Int\u00e9grant une protection contre les surcharges par ligne de compensation, les puces d\u2019alimentation \u00e0 d\u00e9coupage off-line TinySwitch-4 de Power...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/test.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/225358\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Puces d\u2019alimentation \u00e0 d\u00e9coupage off-line\" \/>\n<meta property=\"og:description\" content=\"Int\u00e9grant une protection contre les surcharges par ligne de compensation, les puces d\u2019alimentation \u00e0 d\u00e9coupage off-line TinySwitch-4 de Power Integrations r\u00e9duisent spectaculairement la surpuissance maximum susceptible d\u2019\u00eatre d\u00e9livr\u00e9e \u00e0 la charge \u00e0 travers la plage de tension d\u2019entr\u00e9e alternative. 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