{"id":100632,"date":"2018-12-10T23:00:50","date_gmt":"2018-12-10T23:00:50","guid":{"rendered":"https:\/\/\/chargeur-de-batterie-buck-boost-usb-c-pour-les-systemes-informatiques-portables\/"},"modified":"2018-12-10T23:00:50","modified_gmt":"2018-12-10T23:00:50","slug":"chargeur-de-batterie-buck-boost-usb-c-pour-les-systemes-informatiques-portables","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/chargeur-de-batterie-buck-boost-usb-c-pour-les-systemes-informatiques-portables\/","title":{"rendered":"Chargeur de batterie Buck-Boost USB-C pour les syst\u00e8mes informatiques portables"},"content":{"rendered":"<p>A travers le contr\u00f4le via son micrologiciel, l&rsquo;ISL9241 peut basculer entre les modes NVDC et HPBB, offrant une solution \u00e0 faible co\u00fbt et de petite taille, capable de traiter efficacement une gamme compl\u00e8te de niveaux de puissance. Il utilise la technologie de modulation avanc\u00e9e R3 de Renesas pour une efficacit\u00e9 sup\u00e9rieure des faibles charges et une r\u00e9ponse transitoire ultra-rapide afin de prolonger la dur\u00e9e de vie de la batterie. La compensation interne reconfigurable du chargeur permet l\u2019utilisation d\u2019un plus petit inducteur pour le mode HPBB afin d\u2019obtenir des rendements sup\u00e9rieurs sous diff\u00e9rents niveaux de puissance.<\/p>\n<p>L&rsquo;ISL9241 offre des fonctionnalit\u00e9s de charge, de r\u00e9gulation du bus syst\u00e8me et de protection utilisant des FET canal N pour une efficacit\u00e9 maximale et une optimisation des co\u00fbts de la nomenclature. Le chargeur peut fonctionner avec une batterie, uniquement un adaptateur ou les deux connect\u00e9s en m\u00eame temps. Il utilise l&rsquo;alimentation en courant continu des adaptateurs classiques, des adaptateurs de voyage et des ports d&rsquo;alimentation de type USB (PD), et charge en toute s\u00e9curit\u00e9 les packs batteries Li-ion pouvant contenir jusqu&rsquo;\u00e0 quatre cellules de batteries. En mode NVDC, l&rsquo;ISL9241 s\u00e9lectionne automatiquement l&rsquo;adaptateur ou la batterie comme source d&rsquo;alimentation du syst\u00e8me. Le mode NVDC prend \u00e9galement en charge le mode turbo en activant le BGATE FET pour limiter le courant de l\u2019adaptateur au point de consigne limite fix\u00e9 de l\u2019adaptateur. Le mode NVDC correspond \u00e0 l\u2019\u00e9tat initial de d\u00e9marrage de l\u2019ISL9241 avant que le microprogramme du contr\u00f4leur syst\u00e8me ne modifie la configuration en HPBB. En mode HPBB haute puissance, l&rsquo;ISL9241 prend en charge les modes bypass, bypass plus charge, mode turbo-boost inverse, et mode turbo-boost inverse plus charge.<\/p>\n<p>L&rsquo;ISL9241 fournit au port de l&rsquo;adaptateur (mode OTG) de 5V \u00e0 20V en buck invers\u00e9, boost ou buck-boost invers\u00e9. Cela permet des configurations pour prendre en charge la sortie USB-C PD pour une charge rapide des ports PPS (\u00ab&nbsp;Programmable Power Supply&nbsp;\u00bb). La charge directe de la batterie peut \u00e9galement \u00eatre activ\u00e9e en contournant l\u2019ISL9241 en mode PPS. L\u2019architecture de charge reconfigurable de l\u2019ISL9241 permet \u00e9galement aux concepteurs d\u2019utiliser le chargeur pour des configurations multiport tout en restant totalement conforme \u00e0 la norme USB PD3.0. Plusieurs fonctions de t\u00e9l\u00e9m\u00e9trie num\u00e9rique, de surveillance des pannes et de protection sont fournies. En outre, l&rsquo;ISL9241 comporte \u00e9galement un mode d&rsquo;alimentation suppl\u00e9mentaire qui permet au condensateur de polarisation d&rsquo;entr\u00e9e de stocker de l&rsquo;\u00e9nergie et de la lib\u00e9rer lors d&rsquo;une demande de puissance \u00e9lev\u00e9e.<\/p>\n<p><a href=\"http:\/\/www.renesas.com\/%20\/t%20_blank\">www.renesas.com<\/a><\/p>\n<h3 class=\"title\"><a href=\"http:\/\/www.electronique-eci.com\/news\/renesas-electronics-accelere-la-conception-de-passerelles-de-reseau-de-capteurs\">Renesas Electronics acc\u00e9l\u00e8re la conception de passerelles de r\u00e9seau de capteurs<\/a><\/h3>\n<h3 class=\"title\"><a href=\"http:\/\/www.electronique-eci.com\/news\/solution-integree-et-ouverte-de-traitement-des-signaux-dimage\">Solution int\u00e9gr\u00e9e et ouverte de traitement des signaux d&rsquo;image<\/a><\/h3>\n","protected":false},"excerpt":{"rendered":"<p>Supportant \u00e0 la fois la charge directe \u00e0 plage de tension restreinte (NVDC) et de puissance hybride (HPBB), le chargeur de batterie USB-C Buck-Boost de Renesas peut \u00eatre utilis\u00e9 pour charger les ordinateurs portables, ultrabooks, tablettes et batteries externes \u00e0 l&rsquo;aide du c\u00e2ble de connecteur USB Type-C r\u00e9versible. <\/p>\n","protected":false},"author":9,"featured_media":100633,"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-100632","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Chargeur de batterie Buck-Boost USB-C pour les syst\u00e8mes inform...<\/title>\n<meta name=\"description\" content=\"Supportant \u00e0 la fois la charge directe \u00e0 plage de tension restreinte (NVDC) et de puissance hybride (HPBB), le chargeur de batterie USB-C Buck-Boost de...\" \/>\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\/100632\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Chargeur de batterie Buck-Boost USB-C pour les syst\u00e8mes informatiques portables\" \/>\n<meta property=\"og:description\" content=\"Supportant \u00e0 la fois la charge directe \u00e0 plage de tension restreinte (NVDC) et de puissance hybride (HPBB), le chargeur de batterie USB-C Buck-Boost de Renesas peut \u00eatre utilis\u00e9 pour charger les ordinateurs portables, ultrabooks, tablettes et batteries externes \u00e0 l&#039;aide du c\u00e2ble de connecteur USB Type-C r\u00e9versible.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/100632\/\" \/>\n<meta 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