{"id":235162,"date":"2015-12-16T23:00:00","date_gmt":"2015-12-16T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/controleur-dc-dc-quatre-quadrants-a-sortie-bipolaire\/"},"modified":"2015-12-16T23:00:00","modified_gmt":"2015-12-16T23:00:00","slug":"controleur-dc-dc-quatre-quadrants-a-sortie-bipolaire","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/controleur-dc-dc-quatre-quadrants-a-sortie-bipolaire\/","title":{"rendered":"Contr\u00f4leur DC\/DC quatre quadrants, \u00e0 sortie bipolaire"},"content":{"rendered":"<p>Fonctionnant sur une gamme de la tension d&rsquo;entr&eacute;e de 4,5 V &agrave; 80 V, ce dispositif g&eacute;n&egrave;re une tension de sortie ind&eacute;pendante du choix des composants externes. Il peut fonctionner en tant que source de puissance et en tant que charge ne respectant pas la polarit&eacute; de la tension. Son contr&ocirc;leur et gestionnaire de courant, &agrave; sortie rail-&agrave;-rail, lui permet d&rsquo;&ecirc;tre configur&eacute; en source d&rsquo;intensit&eacute;. Ce circuit poss&egrave;de une fonction innovante sur la broche EN pour les signaux d&rsquo;entr&eacute;e &agrave; variation lente. Une tension externe, appliqu&eacute;e sur la broche de contr&ocirc;le, fixe la tension de sortie.<br \/>\nLa fr&eacute;quence de fonctionnement fixe peut &ecirc;tre s&eacute;lectionn&eacute;e de 100 kHz &agrave; 750 kHz et synchronis&eacute;e &agrave; une horloge externe. Le composant comprend un indicateur de tension &eacute;tablie pour signifier si la tension de sortie est sup&eacute;rieure ou inf&eacute;rieure &agrave; la tension r&eacute;gul&eacute;e d&eacute;termin&eacute;e. Un contr&ocirc;le en mode courant procure une excellente r&eacute;gulation en fonction de la ligne et de la charge. Les caract&eacute;ristiques suppl&eacute;mentaires comprennent une protection contre les surintensit&eacute;s, un arr&ecirc;t en cas de sous-tension et un d&eacute;marrage progressif.<br \/>\nCe contr&ocirc;leur est propos&eacute; en bo&icirc;tier TSSOP de 20 broches en classes E et I. Ses applications comprennent les sources de courant bidirectionnelles, les syst&egrave;mes de test, l&rsquo;amplification de signaux basse fr&eacute;quence et de forte puissance, la polarisation du substrat, les refroidisseurs thermo&eacute;lectriques (TEC) et la coloration &eacute;lectronique d&rsquo;une fen&ecirc;tre.<\/p>\n<\/p>\n<p><a title=\"www.linear.com\/product\/LT8714\" target=\"_blank\" href=\"http:\/\/www.linear.com\/product\/LT8714\" rel=\"noopener\">www.linear.com\/product\/LT8714<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Supportant jusqu\u2019\u00e0 80 V en entr\u00e9e, le contr\u00f4leur DC\/DC PWM synchrone LT8714 de Linear Technology offre une sortie bipolaire \u00e0 quatre quadrants. Il assure une transition nette aux passages au z\u00e9ro de tension, tout en pouvant g\u00e9n\u00e9rer et absorber un courant jusqu\u2019\u00e0 5 A, ind\u00e9pendamment de la polarit\u00e9 de la tension de sortie, ce qui le rend appropri\u00e9 \u00e0 la r\u00e9gulation de tensions positives, n\u00e9gatives ou nulles. <\/p>\n","protected":false},"author":22,"featured_media":235163,"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-235162","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Contr\u00f4leur DC\/DC quatre quadrants, \u00e0 sortie bipolaire ...<\/title>\n<meta name=\"description\" content=\"Supportant jusqu\u2019\u00e0 80 V en entr\u00e9e, le contr\u00f4leur DC\/DC PWM synchrone LT8714 de Linear Technology offre une sortie bipolaire \u00e0 quatre quadrants. Il...\" \/>\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\/235162\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Contr\u00f4leur DC\/DC quatre quadrants, \u00e0 sortie bipolaire\" \/>\n<meta property=\"og:description\" content=\"Supportant jusqu\u2019\u00e0 80 V en entr\u00e9e, le contr\u00f4leur DC\/DC PWM synchrone LT8714 de Linear Technology offre une sortie bipolaire \u00e0 quatre quadrants. Il assure une transition nette aux passages au z\u00e9ro de tension, tout en pouvant g\u00e9n\u00e9rer et absorber un courant jusqu\u2019\u00e0 5 A, ind\u00e9pendamment de la polarit\u00e9 de la tension de sortie, ce qui le rend appropri\u00e9 \u00e0 la r\u00e9gulation de tensions positives, n\u00e9gatives ou nulles.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/235162\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2015-12-16T23:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/import\/eci7554_linear_lt8714.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1945\" \/>\n\t<meta property=\"og:image:height\" content=\"1389\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"eeNews Europe\" \/>\n<meta name=\"twitter:card\" 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