{"id":107062,"date":"2018-10-08T14:40:44","date_gmt":"2018-10-08T14:40:44","guid":{"rendered":"https:\/\/\/controleurs-buck-boost-synchrones-bidirectionnels\/"},"modified":"2018-10-08T14:40:44","modified_gmt":"2018-10-08T14:40:44","slug":"controleurs-buck-boost-synchrones-bidirectionnels","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/controleurs-buck-boost-synchrones-bidirectionnels\/","title":{"rendered":"Contr\u00f4leurs Buck-Boost synchrones bidirectionnels"},"content":{"rendered":"

L’ISL81601 a une large plage d’entr\u00e9e de 4,5V \u00e0 60V et produit une sortie de 0,8V \u00e0 60V pour prendre en charge la plupart des batteries industrielles : 12V, 24V, 36V et 48V. La version ISL81401 est \u00e9galement disponible, une version \u00e0 plage d\u2019entr\u00e9e de 4,5V \u00e0 40V et \u00e0 sortie de 0,8V \u00e0 40V, ainsi que son \u00e9quivalent unidirectionnel, l\u2019ISL81401A. Les nouveaux contr\u00f4leurs sont bien adapt\u00e9s aux syst\u00e8mes d’alimentation de secours et aux syst\u00e8mes m\u00e9dicaux, industriels et de t\u00e9l\u00e9communications aliment\u00e9s par batterie.<\/p>\n

La fonction de d\u00e9tection de courant de cr\u00eate bidirectionnelle de l\u2019ISL81601 et de l\u2019ISL81401 \u00e9limine les circuits externes complexes requis pour charger et d\u00e9charger une batterie afin d\u2019alimenter les charges correctement. Leur algorithme exclusif permet des transitions de mode en douceur entre buck, boost et buck-boost, tout en r\u00e9duisant l’ondulation des basses fr\u00e9quences au niveau de Vout, tout en minimisant les perturbations lors des transitoires de ligne ou de charge. L’algorithme assure \u00e9galement une tension d’ondulation pr\u00e9visible dans toutes les conditions. L’ajout d’une protection multicouche contre les surintensit\u00e9s et d’un algorithme de contr\u00f4le de pr\u00e9cision d\u00e9livre un courant constant jusqu’\u00e0 0,1 V au niveau de Vout pour un fonctionnement fiable. Les concepteurs peuvent facilement augmenter la puissance du syst\u00e8me en mettant en parall\u00e8le un nombre illimit\u00e9 de contr\u00f4leurs. Les mod\u00e8les ISL81601 et ISL81401 utilisent deux commutateurs \u00e0 la fois pour minimiser les pertes de puissance et obtenir une efficacit\u00e9 accrue.<\/p>\n

\u00ab Nos nouveaux contr\u00f4leurs buck-boost bidirectionnels \u00e9liminent les circuits de d\u00e9tection additionnels et offrent aux clients un ensemble de fonctionnalit\u00e9s robustes qui pr\u00e9servent la sant\u00e9 de la batterie et une utilisation optimale de l’\u00e9nergie \u00bb, a d\u00e9clar\u00e9 Philip Chesley, vice-pr\u00e9sident de la division commerciale industrielle \u00ab Analog and Power \u00bb de Renesas Electronics Corporation. \u00ab L\u2019exploitation du sch\u00e9ma de modulation et des algorithmes exclusifs de Renesas permet aux syst\u00e8mes hautement int\u00e9gr\u00e9s ISL81601, ISL81401 et ISL81401A d\u2019obtenir les performances de haute fiabilit\u00e9 requises pour les \u00e9quipements aliment\u00e9s par batterie. \u00bb<\/p>\n

Les modules ISL81601 et ISL81401\/A peuvent \u00eatre combin\u00e9s \u00e0 un microcontr\u00f4leur Renesas RL78 (MCU)<\/a> ou \u00e0 d’autres MCU pour programmer les tensions, la fonction de charge \/ d\u00e9charge de la batterie et le flux de puissance bidirectionnel \u00e0 la vol\u00e9e. Les concepteurs peuvent \u00e9galement utiliser l’outil PowerCompass<\/a> pour les aider \u00e0 identifier rapidement d’autres composants d’alimentation r\u00e9pondant aux exigences sp\u00e9cifiques de leur syst\u00e8me. Plusieurs rails d’alimentation peuvent \u00eatre configur\u00e9s et les concepteurs peuvent effectuer une analyse syst\u00e8me de haut niveau et g\u00e9n\u00e9rer des fichiers de conception de r\u00e9f\u00e9rence personnalis\u00e9s en quelques minutes.<\/p>\n

www.renesas.com\/products\/ISL81601<\/a><\/p>\n

Solution int\u00e9gr\u00e9e et ouverte de traitement des signaux d’image<\/a><\/h3>\n

Kit acc\u00e9l\u00e8rant le d\u00e9veloppement de la connectivit\u00e9 IoT LTE Global<\/a><\/h3>\n

Contr\u00f4leurs num\u00e9riques \u00e9volutifs <\/a><\/h3>\n

 <\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Propos\u00e9s par Renesas Electronics Corporation, les contr\u00f4leurs ISL81601 et ISL81401 sont les seuls v\u00e9ritables contr\u00f4leurs bidirectionnels du secteur qui d\u00e9tectent le courant de cr\u00eate en entr\u00e9e ou sortie, et fournissent une limite de courant cycle par cycle dans les deux sens en mode abaisseur (buck) ou \u00e9l\u00e9vateur (boost). Les contr\u00f4leurs g\u00e9n\u00e8rent des conversions de points de charge (POL) et de rails de tension avec un rendement maximal pouvant atteindre 99%.<\/p>\n","protected":false},"author":9,"featured_media":107063,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1141],"class_list":["post-107062","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"Contr\u00f4leurs Buck-Boost synchrones bidirectionnels ...<\/title>\n<meta name=\"description\" content=\"Propos\u00e9s par Renesas Electronics Corporation, les contr\u00f4leurs ISL81601 et ISL81401 sont les seuls v\u00e9ritables contr\u00f4leurs bidirectionnels du secteur qui...\" \/>\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\/107062\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Contr\u00f4leurs Buck-Boost synchrones bidirectionnels\" \/>\n<meta property=\"og:description\" content=\"Propos\u00e9s par Renesas Electronics Corporation, les contr\u00f4leurs ISL81601 et ISL81401 sont les seuls v\u00e9ritables contr\u00f4leurs bidirectionnels du secteur qui d\u00e9tectent le courant de cr\u00eate en entr\u00e9e ou sortie, et fournissent une limite de courant cycle par cycle dans les deux sens en mode abaisseur (buck) ou \u00e9l\u00e9vateur (boost). 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