{"id":229536,"date":"2014-03-19T23:00:00","date_gmt":"2014-03-19T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/regulateurs-buck-boost-et-boost-haut-rendement\/"},"modified":"2014-03-19T23:00:00","modified_gmt":"2014-03-19T23:00:00","slug":"regulateurs-buck-boost-et-boost-haut-rendement","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/regulateurs-buck-boost-et-boost-haut-rendement\/","title":{"rendered":"R\u00e9gulateurs Buck-Boost et Boost haut rendement"},"content":{"rendered":"<p>Les r&eacute;gulateurs &agrave; d&eacute;coupage buck-boost IISL91110 et ISL91108 sont utilis&eacute;s dans les dispositifs mobiles tels que les Smartphones et tablettes, pour alimenter le circuit int&eacute;gr&eacute; de gestion d&rsquo;alimentation syst&egrave;me (PMIC), l&rsquo;amplificateur de puissance Wi-Fi ou RF et d&rsquo;autres p&eacute;riph&eacute;riques comme les interfaces cam&eacute;ra et m&eacute;moire. Le convertisseur boost ISL91117 convient pour les impl&eacute;mentations d&rsquo;USB &quot;on-the-go&quot; qui exigent un fort courant et un haut rendement. Il existe en versions &agrave; tension de sortie fixe de 5 V ou &agrave; tension ajustable.<br \/>\nCette famille est bas&eacute;e sur une architecture propri&eacute;taire enti&egrave;rement synchrone &agrave; quatre commutateurs. Celle-ci rend possible une transition en douceur du mode abaisseur (buck) au mode &eacute;l&eacute;vateur (boost), et fournit un courant de sortie atteignant 2,5 A &agrave; partir des plus faibles tensions de batteries LI mono-cellule, ce qui am&eacute;liore notablement l&rsquo;efficacit&eacute; &eacute;nerg&eacute;tique, augmente la dur&eacute;e de la batterie et &eacute;vite les surchauffes dans les dispositifs mobiles.<br \/>\nLa s&eacute;rie offre une r&eacute;ponse ultra rapide aux transitoires afin de g&eacute;rer les forts appels de courant lors des pointes de consommation sans subir de perturbations notables en sortie. Il en r&eacute;sulte un fonctionnement fiable du syst&egrave;me sous toutes les conditions de charge, sans impulsions parasites ni bruits, et une fonctionnalit&eacute; sans heurts pour une meilleure exp&eacute;rience utilisateur. Ainsi, les concepteurs peuvent exploiter une plus large plage de tension de batterie gr&acirc;ce &agrave; la capacit&eacute; de ces r&eacute;gulateurs &agrave; s&rsquo;adapter &agrave; toute la palette des mat&eacute;riaux chimiques les plus avanc&eacute;s des batteries LI.<br \/>\nCon&ccedil;ue en pensant aux applications &agrave; fortes contraintes d&rsquo;espace, cette famille peut fonctionner avec de tr&egrave;s petits condensateurs et inductances, ce qui la rend bien adapt&eacute;e pour les dispositifs mobiles. Sa fr&eacute;quence de commutation de 2,6 MHz r&eacute;duit encore la taille de la solution d&rsquo;alimentation. Encapsul&eacute;e au niveau de la tranche dans un bo&icirc;tier-puce avanc&eacute; CSP, elle offre une empreinte de seulement 2,34 x 1,72 mm. De plus, chaque r&eacute;gulateur &agrave; d&eacute;coupage ne n&eacute;cessite qu&rsquo;une seule inductance et tr&egrave;s peu de composants externes, minimisant les besoins globaux en espace.\n<\/p>\n<hr \/>\n<p>\n&quot;Intersil est &agrave; l&rsquo;origine d&rsquo;une grande partie des plus importantes avanc&eacute;es en gestion d&rsquo;&eacute;nergie pour syst&egrave;mes informatiques. Nous appliquons ces technologies propri&eacute;taires &eacute;prouv&eacute;es au march&eacute; mobile, o&ugrave; les syst&egrave;mes gagnent en complexit&eacute; et deviennent &eacute;nergivores,&quot; d&eacute;clare Andrew Cowell, senior vice-pr&eacute;sident, Mobile Power Products chez Intersil. &quot;Notre nouvelle famille de r&eacute;gulateurs buck-boost &agrave; d&eacute;coupage est l&rsquo;un des blocs de base que nous exploitons pour d&eacute;velopper des puces de gestion d&rsquo;&eacute;nergie haute int&eacute;gration et haute performance qui am&eacute;liorent fondamentalement le rendement des dispositifs mobiles.&quot; <\/p>\n<\/p>\n<p><a href=\"http:\/\/www.intersil.com\/products\/ISL91110\" target=\"_blank\" title=\"www.intersil.com\/products\/ISL91110\" rel=\"noopener\">www.intersil.com\/products\/ISL91110<\/a><a href=\"http:\/\/www.intersil.com\/products\/ISL91108\" target=\"_blank\" title=\"www.intersil.com\/products\/ISL91108\" rel=\"noopener\"><br \/>\nwww.intersil.com\/products\/ISL91108<\/a><a href=\"http:\/\/www.intersil.com\/products\/ISL91117\" target=\"_blank\" title=\"www.intersil.com\/products\/ISL91117\" rel=\"noopener\"><br \/>\nwww.intersil.com\/products\/ISL91117<\/a>\n<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Int\u00e9gr\u00e9e dans un minuscule bo\u00eetier-puce CSP, la famille de r\u00e9gulateurs \u00e0 d\u00e9coupage fort courant buck-boost et boost ISL91110, ISL91108 et ISL91117 d\u2019Intersil offre un haut rendement, jusqu\u2019\u00e0 96%, et une transition douce du mode abaisseur au mode \u00e9l\u00e9vateur. Ils \u00e9tendent la dur\u00e9e de la batterie et \u00e9vitent les bruits et la surchauffe dans les produits portables aliment\u00e9s par mono-cellules lithium ion (LI). <\/p>\n","protected":false},"author":22,"featured_media":229537,"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-229536","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>R\u00e9gulateurs Buck-Boost et Boost haut rendement ...<\/title>\n<meta name=\"description\" content=\"Int\u00e9gr\u00e9e dans un minuscule bo\u00eetier-puce CSP, la famille de r\u00e9gulateurs \u00e0 d\u00e9coupage fort courant buck-boost et boost ISL91110, ISL91108 et ISL91117...\" \/>\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\/229536\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"R\u00e9gulateurs Buck-Boost et Boost haut rendement\" \/>\n<meta property=\"og:description\" content=\"Int\u00e9gr\u00e9e dans un minuscule bo\u00eetier-puce CSP, la famille de r\u00e9gulateurs \u00e0 d\u00e9coupage fort courant buck-boost et boost ISL91110, ISL91108 et ISL91117 d\u2019Intersil offre un haut rendement, jusqu\u2019\u00e0 96%, et une transition douce du mode abaisseur au mode \u00e9l\u00e9vateur. 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