{"id":226810,"date":"2013-04-09T22:00:00","date_gmt":"2013-04-09T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/controleur-a-pont-et-modulation-de-phase-en-classe-h\/"},"modified":"2013-04-09T22:00:00","modified_gmt":"2013-04-09T22:00:00","slug":"controleur-a-pont-et-modulation-de-phase-en-classe-h","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/controleur-a-pont-et-modulation-de-phase-en-classe-h\/","title":{"rendered":"Contr\u00f4leur \u00e0 pont et modulation de phase en classe H"},"content":{"rendered":"

La technique de commande ajustable au zéro de tension de ce circuit est réalisée en mesurant la tension sur le pont de MOSFET et la tension d’entrée, ce qui permet au convertisseur de s’adapter à toute variation du courant dans la charge, de la température, des tolérances du composant, du retard des circuits de commande ou de la tension d’entrée. Les caractéristiques complémentaires incluent un contrôle à mode courant et fréquence fixe, le réglage de la limite d’intensité, la programmation d’annulation du front montant, un démarrage progressif, une protection contre les courts-circuits et une compensation de pente programmable. Un régulateur 5 V, précis et à faible tension de déchet, fournit jusqu’à 15 mA pour l’alimentation des circuits auxiliaires.
\nProposée en boîtier SSOP-24, cette version de classe H fonctionne avec une température de jonction de -40 °C à +150 °C, alors que la température de jonction des versions de classes E et I est au maximum de 85 °C. Testé et garanti pour 150 °C, ce contrôleur classe H convient particulièrement aux applications de l’automobile et de l’industrie qui sont soumises à de fortes températures ambiantes. <\/p>\n<\/p>\n

www.linear.com\/product\/LTC3722<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Disposant d\u2019une commande manuelle ou ajustable de la commutation au z\u00e9ro de tension ZVS, le contr\u00f4leur DC\/DC \u00e0 pont et \u00e0 modulation de phase LTC3722-1 de Linear Technology est d\u00e9sormais propos\u00e9 en version de classe H. Le contr\u00f4le du retard de la fonction ZVS et le r\u00e9glage du redressement synchrone optimisent le fonctionnement tout en r\u00e9duisant la taille du transformateur et le niveau des interf\u00e9rences \u00e9lectromagn\u00e9tiques, ce qui permet d\u2019utiliser ce composant pour des applications isol\u00e9es de forte puissance, jusqu\u2019\u00e0 plusieurs kilowatts.<\/p>\n","protected":false},"author":22,"featured_media":226811,"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-226810","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"Contr\u00f4leur \u00e0 pont et modulation de phase en classe H ...<\/title>\n<meta name=\"description\" content=\"Disposant d\u2019une commande manuelle ou ajustable de la commutation au z\u00e9ro de tension ZVS, le contr\u00f4leur DC\/DC \u00e0 pont et \u00e0 modulation de phase LTC3722-1...\" \/>\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\/226810\/\" \/>\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 et modulation de phase en classe H\" \/>\n<meta property=\"og:description\" content=\"Disposant d\u2019une commande manuelle ou ajustable de la commutation au z\u00e9ro de tension ZVS, le contr\u00f4leur DC\/DC \u00e0 pont et \u00e0 modulation de phase LTC3722-1 de Linear Technology est d\u00e9sormais propos\u00e9 en version de classe H. 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