{"id":224513,"date":"2012-06-12T22:00:00","date_gmt":"2012-06-12T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/controleur-continu-continu-pour-applications-a-forte-intensite\/"},"modified":"2012-06-12T22:00:00","modified_gmt":"2012-06-12T22:00:00","slug":"controleur-continu-continu-pour-applications-a-forte-intensite","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/controleur-continu-continu-pour-applications-a-forte-intensite\/","title":{"rendered":"Contr\u00f4leur continu-continu pour applications \u00e0 forte intensit\u00e9"},"content":{"rendered":"<p style=\"margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal\" class=\"MsoNormal\">Ce contr&ocirc;leur dispose d&rsquo;une entr&eacute;e de synchronisation et d&rsquo;une fonction clock-out qui assurent une synchronisation &agrave; d&eacute;calage de phase de 180 degr&eacute;s. Cette approche &eacute;limine les fr&eacute;quences de &quot;battement&quot; g&ecirc;nantes et r&eacute;duit la capacit&eacute; d&rsquo;entr&eacute;e du syst&egrave;me lorsque plusieurs dispositifs sont utilis&eacute;s. Par ailleurs, la fonction de suivi autorise un d&eacute;marrage contr&ocirc;l&eacute;. Une s&eacute;quence de d&eacute;marrage simple et robuste peut &ecirc;tre mise en &oelig;uvre en utilisant les fonctions Precision-Enable (entr&eacute;e de pr&eacute;cision) et Power-Good (puissance correcte). Ce circuit peut &ecirc;tre raccord&eacute; en parall&egrave;le pour augmenter le niveau de courant fourni qui peut aller jusqu&rsquo;&agrave; 50&nbsp;A en fonction des FET externes. <\/p>\n<p style=\"margin-bottom:0cm;margin-bottom:.0001pt;line-height:normal\" class=\"MsoNormal\">En mode courant, son architecture d&eacute;tecte le courant pendant la p&eacute;riode de blocage (off) pour am&eacute;liorer l&rsquo;immunit&eacute; au bruit en utilisant la r&eacute;sistance &agrave; l&rsquo;&eacute;tat passant du transistor FET &quot;low side&quot;&nbsp; ou une r&eacute;sistance de d&eacute;tection s&eacute;rie pour atteindre un plus haut niveau de pr&eacute;cision. Une compensation de pente avec r&eacute;glage par composant externe est ajout&eacute;e afin d&rsquo;optimiser les performances en mode courant. Quelques modifications mineures apport&eacute;es aux r&eacute;glages des r&eacute;sistances externes permettent de le configurer en mode tension, en utilisant le contr&ocirc;le par l&rsquo;entr&eacute;e (input line feed-forward) pour assurer une excellente r&eacute;jection en ligne. Il est dot&eacute; d&rsquo;un mode de saut d&rsquo;impulsions (PSM) qui augmente l&rsquo;efficacit&eacute; &eacute;nerg&eacute;tique pendant le fonctionnement &agrave; faible charge. Il dispose &eacute;galement d&rsquo;une limite de courant pr&eacute;cise, ce qui permet de choisir de fa&ccedil;on optimale le dimensionnement des composants externes et d&rsquo;optimiser l&rsquo;espace occup&eacute; sur le circuit imprim&eacute;.<br \/>\nCe composant est con&ccedil;u pour les applications de point de charge &agrave; haut rendement en courant &eacute;lev&eacute; et &agrave; r&eacute;ponse transitoire rapide dans une large gamme d&rsquo;applications de communications en r&eacute;seau, industrielles, m&eacute;dicales et grand public. Il est pr&eacute;sent&eacute; en bo&icirc;tier LFCSP &agrave; 20 contacts et fonctionne sur la plage de temp&eacute;rature de -40 &deg;C &agrave; +125 &deg;C. Pour simplifier son utilisation et r&eacute;duire les d&eacute;lais de conception, il est livr&eacute; avec les outils en ligne ADIsimPower.<\/p>\n<p><a href=\"http:\/\/www.analog.com\/ADP1853\" target=\"_blank\" title=\"www.analog.com\/ADP1853\" rel=\"noopener\">www.analog.com\/ADP1853<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Analog Devices annonce l\u2019ADP1853, un contr\u00f4leur-abaisseur continu-continu synchrone \u00e0 large plage d\u2019entr\u00e9e qui dispose de fonctions de suivi et de synchronisation d\u2019horloge avanc\u00e9e. Polyvalent, il peut \u00eatre configur\u00e9 en contr\u00f4leur op\u00e9rant en mode tension contr\u00f4l\u00e9 par l\u2019entr\u00e9e (input feed-forward) ou op\u00e9rant en mode courant, en fonction de l\u2019application ou des pr\u00e9f\u00e9rences du client.<\/p>\n","protected":false},"author":22,"featured_media":224514,"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-224513","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Contr\u00f4leur continu-continu pour applications \u00e0 forte intensit\u00e9 ...<\/title>\n<meta name=\"description\" content=\"Analog Devices annonce l\u2019ADP1853, un contr\u00f4leur-abaisseur continu-continu synchrone \u00e0 large plage d\u2019entr\u00e9e qui dispose de fonctions de suivi et 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\/224513\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Contr\u00f4leur continu-continu pour applications \u00e0 forte intensit\u00e9\" \/>\n<meta property=\"og:description\" content=\"Analog Devices annonce l\u2019ADP1853, un contr\u00f4leur-abaisseur continu-continu synchrone \u00e0 large plage d\u2019entr\u00e9e qui dispose de fonctions de suivi et de synchronisation d\u2019horloge avanc\u00e9e. 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