{"id":172501,"date":"2017-05-17T02:00:00","date_gmt":"2017-05-17T02:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/controleur-analogique-dalimentation-depa\/"},"modified":"2017-05-17T02:00:00","modified_gmt":"2017-05-17T02:00:00","slug":"controleur-analogique-dalimentation-depa","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/controleur-analogique-dalimentation-depa\/","title":{"rendered":"Contr\u00f4leur analogique d\u2019alimentation DEPA"},"content":{"rendered":"<p>Le microcontr\u00f4leur PIC int\u00e9gr\u00e9 dans ce composant peut ajuster de mani\u00e8re dynamique la fr\u00e9quence de fonctionnement, les niveaux de verrouillage en cas de surtensions et de sous-tensions, les limites de courant, le d\u00e9marrage progressif, les valeurs de consigne des sorties de tension ou de courant et le cycle de service maximum. Ce niveau de configurabilit\u00e9 offre de nombreux avantages pour les applications. Par exemple, ce circuit peut ajuster de mani\u00e8re dynamique la sortie de tension pour qu\u2019elle corresponde aux exigences de la technologie USB-PD (USB Power Delivery), tout en ajustant \u00e9galement le niveau de verrouillage en cas de surtension en sortie afin de maintenir des limites de protection \u00e9troites qui correspondent \u00e0 chaque niveau de tension de sortie.<\/p>\n<p>Ce contr\u00f4leur Buck offre de nombreuses capacit\u00e9s sp\u00e9cifiques, y compris un amplificateur programmable \u00e0 entr\u00e9es diff\u00e9rentielles utilis\u00e9 pour optimiser les performances et minimiser les erreurs de tension du syst\u00e8me. Gr\u00e2ce \u00e0 ces capacit\u00e9s, il permet une large plage de tensions de sortie telle qu\u2019on en trouve couramment sur les applications aliment\u00e9es par USB et celles de chargement de batterie.<\/p>\n<p>En am\u00e9liorant l\u2019int\u00e9gration sur les plus gros syst\u00e8mes, ce circuit peut se synchroniser avec une horloge et une r\u00e9f\u00e9rence de tension externes, ou fournir une horloge syst\u00e8me et une r\u00e9f\u00e9rence internes afin de se synchroniser avec d\u2019autres composants. Sur les serveurs et \u00e9quipements de communication, cela assure une mise sous tension id\u00e9ale et un suivi pr\u00e9cis de la consommation \u00e9nerg\u00e9tique sur l\u2019ensemble de la carte.<\/p>\n<p>Pour les applications haute puissance, de nombreuses sorties peuvent fonctionner en parall\u00e8le, offrant une redondance syst\u00e8me qui en am\u00e9liore la fiabilit\u00e9.<br \/>\nCombin\u00e9 \u00e0 la capacit\u00e9 de diagnostic et de d\u00e9tection des pannes, int\u00e9gr\u00e9e et programmable, sans \u00e9quivalent \u00e0 ce jour sur le march\u00e9, ce contr\u00f4leur se r\u00e9v\u00e8le particuli\u00e8rement adapt\u00e9 pour les applications d\u2019alimentation intelligente ultra performantes. Il offre \u00e9galement une excellente pr\u00e9cision pour une alimentation \u00e0 sortie ajustable. En l\u2019impl\u00e9mentant, il est possible de maintenir une pr\u00e9cision de la tension de sortie initiale de 0,5&nbsp;%, voire davantage.<\/p>\n<hr \/>\n<p>En plus d\u2019une \u00e9troite r\u00e9gulation de tension, ce dispositif est con\u00e7u pour offrir une mesure de courant \u00e0 la pointe de la technologie en utilisant une m\u00e9thode de d\u00e9tection de courant avec inducteur sans perte et calibrages internes sp\u00e9cialis\u00e9s des mesures. Ainsi, il peut accepter directement un signal de mode commun jusqu\u2019\u00e0 16&nbsp;V et reporter le courant de charge dans une marge de pr\u00e9cision de 5 % pour la plupart des applications, gr\u00e2ce \u00e0 un contr\u00f4le du mode de courant moyen \u00e9mul\u00e9 permettant une limitation mat\u00e9rielle du courant cycle par cycle.<\/p>\n<p>Le MCP19122 est conditionn\u00e9 en bo\u00eetier QFN-24 de 4&nbsp;x&nbsp;4 mm, alors que le MCP19123 est, quant \u00e0 lui, propos\u00e9 en bo\u00eetier QFN-28 de 5&nbsp;x&nbsp;5 mm. Les deux versions sont compatibles avec la suite d\u2019outils de programmation et de d\u00e9veloppement propri\u00e9taire, y compris l\u2019environnement de d\u00e9veloppement MPLAB X et le compilateur MPLAB XC8.<\/p>\n<p><a href=\"http:\/\/www.microchip.com\/wwwproducts\/en\/MCP19123\" target=\"_blank\" rel=\"noopener\">www.microchip.com\/MCP19123<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>D\u2019une flexibilit\u00e9 in\u00e9gal\u00e9e \u00e0 ce jour, le contr\u00f4leur abaisseur (Buck) analogique d\u2019alimentation num\u00e9riquement am\u00e9lior\u00e9 (DEPA) MCP1922\/3 de Microchip est con\u00e7u pour superviser les convertisseurs DC-DC. Cette solution mono puce supporte une entr\u00e9e haute tension jusqu\u2019\u00e0 42 V tout en r\u00e9gulant simultan\u00e9ment une large plage de tensions de sortie allant de 0,3 V \u00e0 16 V, sans aucun composant ou pilote externe.<\/p>\n","protected":false},"author":9,"featured_media":172502,"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-172501","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>Contr\u00f4leur analogique d\u2019alimentation DEPA ...<\/title>\n<meta name=\"description\" content=\"D\u2019une flexibilit\u00e9 in\u00e9gal\u00e9e \u00e0 ce jour, le contr\u00f4leur abaisseur (Buck) analogique d\u2019alimentation num\u00e9riquement am\u00e9lior\u00e9 (DEPA) MCP1922\/3 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\/172501\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Contr\u00f4leur analogique d\u2019alimentation DEPA\" \/>\n<meta property=\"og:description\" content=\"D\u2019une flexibilit\u00e9 in\u00e9gal\u00e9e \u00e0 ce jour, le contr\u00f4leur abaisseur (Buck) analogique d\u2019alimentation num\u00e9riquement am\u00e9lior\u00e9 (DEPA) MCP1922\/3 de Microchip est con\u00e7u pour superviser les convertisseurs DC-DC. Cette solution mono puce supporte une entr\u00e9e haute tension jusqu\u2019\u00e0 42 V tout en r\u00e9gulant simultan\u00e9ment une large plage de tensions de sortie allant de 0,3 V \u00e0 16 V, sans aucun composant ou pilote externe.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/172501\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2017-05-17T02:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/sites\/default\/files\/images\/eci8545_microchip_mc1382_-_mcp_19123_r.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2100\" \/>\n\t<meta property=\"og:image:height\" content=\"1381\" \/>\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 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