{"id":227322,"date":"2013-06-12T22:00:00","date_gmt":"2013-06-12T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/controleur-a-pont-de-diodes-ideales\/"},"modified":"2013-06-12T22:00:00","modified_gmt":"2013-06-12T22:00:00","slug":"controleur-a-pont-de-diodes-ideales","status":"publish","type":"post","link":"https:\/\/test.ecinews.fr\/fr\/controleur-a-pont-de-diodes-ideales\/","title":{"rendered":"Contr\u00f4leur \u00e0 pont de diodes id\u00e9ales"},"content":{"rendered":"

Les applications basse tension bénéficient ainsi de marges de tensions supplémentaires obtenues par l’économie des deux chutes de tension dans les diodes inhérentes aux ponts de diodes. Par comparaison à une solution traditionnelle, le pont de MOSFET permet une conception de redresseur très rentable quant au volume et à la puissance.
\nLe contrôle du commutateur active, en souplesse, les deux MOSFET appropriés, pendant que les deux autres sont maintenus à l’arrêt pour empêcher les courants inverses. Une pompe de charges intégrée fournit la tension pour le pilotage de la grille des MOSFET canal N externes, à faible résistance à l’état passant, sans nécessiter de condensateurs externes. Le choix des MOSFET procure une grande flexibilité pour les niveaux de puissances qui peut aller de un à des milliers de watts.
\nDécliné en deux options, le LT4320 est conçu pour un redressement de tension du continu à 60 Hz, tandis que le LTC4320-1 supporte du continu jusqu’à 600 Hz. Spécifié pour les gammes de températures industrielles de -40 °C à 85 °C, ce contrôleur est présenté en boîtier DFN 8 broches, de 3 x 3 mm, et en boîtier MSOP 12 broches, avec espacement des broches pour la haute tension. Les cartes d’évaluation associées sont également proposées.<\/p>\n<\/p>\n

www.linear.com\/product\/LT4320<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Pour r\u00e9duire fortement la puissance dissip\u00e9e et accro\u00eetre la tension disponible des syst\u00e8mes aliment\u00e9s de 9 V \u00e0 72 V, Linear Technology pr\u00e9sente son contr\u00f4leur \u00e0 pont de diodes id\u00e9ales LT4320 qui remplace chacune des quatre diodes du pont redresseur deux alternances par un MOSFET canal N \u00e0 faibles pertes. La taille de l\u2019alimentation est r\u00e9duite puisque l\u2019am\u00e9lioration du rendement thermique permet d\u2019\u00e9liminer les radiateurs volumineux.<\/p>\n","protected":false},"author":22,"featured_media":227323,"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-227322","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"Contr\u00f4leur \u00e0 pont de diodes id\u00e9ales ...<\/title>\n<meta name=\"description\" content=\"Pour r\u00e9duire fortement la puissance dissip\u00e9e et accro\u00eetre la tension disponible des syst\u00e8mes aliment\u00e9s de 9 V \u00e0 72 V, Linear Technology pr\u00e9sente son...\" \/>\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\/227322\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Contr\u00f4leur \u00e0 pont de diodes id\u00e9ales\" \/>\n<meta property=\"og:description\" content=\"Pour r\u00e9duire fortement la puissance dissip\u00e9e et accro\u00eetre la tension disponible des syst\u00e8mes aliment\u00e9s de 9 V \u00e0 72 V, Linear Technology pr\u00e9sente son contr\u00f4leur \u00e0 pont de diodes id\u00e9ales LT4320 qui remplace chacune des quatre diodes du pont redresseur deux alternances par un MOSFET canal N \u00e0 faibles pertes. 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