{"id":197828,"date":"2016-09-23T07:00:00","date_gmt":"2016-09-23T07:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/simplifier-la-conception-des-convertisseurs-dc-dc\/"},"modified":"2016-09-23T07:00:00","modified_gmt":"2016-09-23T07:00:00","slug":"simplifier-la-conception-des-convertisseurs-dc-dc","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/simplifier-la-conception-des-convertisseurs-dc-dc\/","title":{"rendered":"Simplifier la conception des convertisseurs DC\/DC"},"content":{"rendered":"<p>Ce composant fonctionne sur une gamme de tensions d\u2019entr\u00e9e de 5,5 V \u00e0 100 V, utilise un commutateur de puissance DMOS int\u00e9gr\u00e9 de 0,45 A\/150 V, et peut fournir une puissance de sortie jusqu\u2019\u00e0 5 W. Ces caract\u00e9ristiques le rendent appropri\u00e9 \u00e0 une grande vari\u00e9t\u00e9 d\u2019applications des t\u00e9l\u00e9communications, de transmission de donn\u00e9es, de l\u2019automobile, industrielles, m\u00e9dicales et militaires.<\/p>\n<p align=\"left\">La tension de sortie est fix\u00e9e \u00e0 l\u2019aide d\u2019une seule r\u00e9sistance externe et du rapport du transformateur.&nbsp; Plusieurs transformateurs standard, mentionn\u00e9s dans la fiche de caract\u00e9ristiques, peuvent \u00eatre utilis\u00e9s dans de nombreuses applications.<\/p>\n<p align=\"left\">Ce r\u00e9gulateur fonctionne en mode&nbsp;de conduction critique (boundary mode) qui consiste en un contr\u00f4le en mode intensit\u00e9, \u00e0 d\u00e9coupage et \u00e0 fr\u00e9quence variable, autorisant une r\u00e9gulation de la tension de sortie \u00e0 \u00b1&nbsp;5% typique, en fonction des variations de la tension de ligne, de la charge et de la temp\u00e9rature.<br \/>\nLe fonctionnement en mode boundary permet l\u2019emploi d\u2019un transformateur plus petit que ceux employ\u00e9s dans les conceptions \u00e0 mode conduction continue \u00e9quivalentes. Le haut degr\u00e9 d\u2019int\u00e9gration et l\u2019emploi du fonctionnement en Burst Mode \u00e0 faible ondulation conduisent \u00e0 un produit d\u2019utilisation simple, avec peu de composants, et de haut rendement pour les alimentations isol\u00e9es.<\/p>\n<p align=\"left\">Les caract\u00e9ristiques additionnelles comprennent&nbsp;une protection contre les courts-circuits, un courant de repos \u00e0 vide de 70 \u00b5A, une compensation de boucle interne, une tension de validation pr\u00e9cise et un arr\u00eat avec hyst\u00e9r\u00e9sis.<\/p>\n<p>Les versions de classes industrielle et \u00e0 gamme de temp\u00e9ratures \u00e9tendue fonctionnent avec une temp\u00e9rature de jonction de -40 \u00b0C \u00e0 +125 \u00b0C.<\/p>\n<p><a href=\"http:\/\/www.linear.com\/product\/LT8303\" target=\"_blank\" rel=\"noopener\">www.linear.com\/product\/LT8303<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Encapsul\u00e9 dans un petit bo\u00eetier TSOT-23, le r\u00e9gulateur \u00e0 r\u00e9cup\u00e9ration d&rsquo;\u00e9nergie (flyback) LT8303 de Linear Technology simplifie, de fa\u00e7on significative, la conception des convertisseurs DC\/DC isol\u00e9s. En \u00e9chantillonnant la tension de sortie isol\u00e9e directement \u00e0 partir du signal du primaire, il ne n\u00e9cessite pas de photocoupleur, de LT1431, ni d\u2019un troisi\u00e8me enroulement pour la r\u00e9gulation.<\/p>\n","protected":false},"author":9,"featured_media":197829,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[909,890],"domains":[47],"ppma_author":[1141],"class_list":["post-197828","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","tag-batteries-power-supplies-fr","tag-powermanagement-fr","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Simplifier la conception des convertisseurs DC\/DC ...<\/title>\n<meta name=\"description\" content=\"Encapsul\u00e9 dans un petit bo\u00eetier TSOT-23, le r\u00e9gulateur \u00e0 r\u00e9cup\u00e9ration d&#039;\u00e9nergie (flyback) LT8303 de Linear Technology simplifie, de fa\u00e7on...\" \/>\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\/197828\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Simplifier la conception des convertisseurs DC\/DC\" \/>\n<meta property=\"og:description\" content=\"Encapsul\u00e9 dans un petit bo\u00eetier TSOT-23, le r\u00e9gulateur \u00e0 r\u00e9cup\u00e9ration d&#039;\u00e9nergie (flyback) LT8303 de Linear Technology simplifie, de fa\u00e7on significative, la conception des convertisseurs DC\/DC isol\u00e9s. En \u00e9chantillonnant la tension de sortie isol\u00e9e directement \u00e0 partir du signal du primaire, il ne n\u00e9cessite pas de photocoupleur, de LT1431, ni d\u2019un troisi\u00e8me enroulement pour la r\u00e9gulation.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/197828\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2016-09-23T07:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/sites\/default\/files\/images\/eci8057_linear_lt8303.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1803\" \/>\n\t<meta property=\"og:image:height\" content=\"1288\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Alain Dieul\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" 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