{"id":224881,"date":"2012-08-02T22:00:00","date_gmt":"2012-08-02T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/convertisseur-dc-dc-generant-une-tension-regulee-positive-ou-negative\/"},"modified":"2012-08-02T22:00:00","modified_gmt":"2012-08-02T22:00:00","slug":"convertisseur-dc-dc-generant-une-tension-regulee-positive-ou-negative","status":"publish","type":"post","link":"https:\/\/test.ecinews.fr\/fr\/convertisseur-dc-dc-generant-une-tension-regulee-positive-ou-negative\/","title":{"rendered":"Convertisseur DC\/DC g\u00e9n\u00e9rant une tension r\u00e9gul\u00e9e positive ou n\u00e9gative"},"content":{"rendered":"<p style=\"line-height:normal\" class=\"MsoBodyText\">Ce composant peut g&eacute;n&eacute;rer une tension de sortie r&eacute;gul&eacute;e positive ou n&eacute;gative gr&acirc;ce &agrave; ses deux amplificateurs d&rsquo;erreur et &agrave; ses tensions de r&eacute;f&eacute;rence. Un bloc amplificateur g&eacute;n&egrave;re les tensions positives en sortie et l&rsquo;autre bloc les tensions de sortie n&eacute;gatives, les deux sorties ayant une seule broche de boucle de retour. Avec une fr&eacute;quence fixe programmable ou pouvant &ecirc;tre synchronis&eacute;e de 100kHz &agrave; 1MHz, les utilisateurs peuvent choisir parmi une grande vari&eacute;t&eacute; d&rsquo;inductances et de condensateurs pour optimiser la taille du circuit imprim&eacute;, les performances et le co&ucirc;t. Le contr&ocirc;le &agrave; mode courant assure un fonctionnement stable sur une large gamme de tensions d&rsquo;alimentation et de sortie. Des conceptions utilisant que des condensateurs &agrave; di&eacute;lectrique c&eacute;ramique sont possibles pour une r&eacute;alisation de plus petite taille. Un d&eacute;marrage progressif, un blocage r&eacute;glable en cas de sous tension en entr&eacute;e et une broche d&rsquo;indication de tension &eacute;tablie compl&egrave;tent ses caract&eacute;ristiques. Encapsul&eacute; dans un bo&icirc;tier QFN-36 de 5 x 6 mm, ce circuit fonctionne sur la gamme de temp&eacute;ratures de -40 &deg;C &agrave; +125 &deg;C.<\/p>\n<p style=\"line-height:normal\" class=\"MsoBodyText\"><a href=\"http:\/\/www.linear.com\/product\/LT3959\" target=\"_blank\" title=\"www.linear.com\/product\/LT3959\" rel=\"noopener\">www.linear.com\/product\/LT3959<\/a><span style=\"font-size:12.0pt;line-height:150%\"><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Linear Technology annonce le LT3959, un convertisseur DC\/DC \u00e0 usage multiple, pour alimentations en mode \u00e9l\u00e9vateur, SEPIC ou inverseur. Il fonctionne \u00e0 partir d\u2019une gamme de tensions d\u2019entr\u00e9e de 2,5 V \u00e0 40 V, poss\u00e8de un commutateur de puissance 6 A \/ 40 V int\u00e9gr\u00e9 et peut r\u00e9aliser des rendements jusqu\u2019\u00e0 96%. Ainsi, il convient bien aux applications industrielles, de l\u2019automobile, m\u00e9dicales et des t\u00e9l\u00e9communications.<\/p>\n","protected":false},"author":22,"featured_media":224882,"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-224881","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Convertisseur DC\/DC g\u00e9n\u00e9rant une tension r\u00e9gul\u00e9e positive o...<\/title>\n<meta name=\"description\" content=\"Linear Technology annonce le LT3959, un convertisseur DC\/DC \u00e0 usage multiple, pour alimentations en mode \u00e9l\u00e9vateur, SEPIC ou inverseur. Il fonctionne \u00e0...\" \/>\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\/224881\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Convertisseur DC\/DC g\u00e9n\u00e9rant une tension r\u00e9gul\u00e9e positive ou n\u00e9gative\" \/>\n<meta property=\"og:description\" content=\"Linear Technology annonce le LT3959, un convertisseur DC\/DC \u00e0 usage multiple, pour alimentations en mode \u00e9l\u00e9vateur, SEPIC ou inverseur. Il fonctionne \u00e0 partir d\u2019une gamme de tensions d\u2019entr\u00e9e de 2,5 V \u00e0 40 V, poss\u00e8de un commutateur de puissance 6 A \/ 40 V int\u00e9gr\u00e9 et peut r\u00e9aliser des rendements jusqu\u2019\u00e0 96%. 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