{"id":224181,"date":"2012-04-29T22:00:00","date_gmt":"2012-04-29T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/circuit-frontal-analogique-de-mesure-de-lenergie\/"},"modified":"2012-04-29T22:00:00","modified_gmt":"2012-04-29T22:00:00","slug":"circuit-frontal-analogique-de-mesure-de-lenergie","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/circuit-frontal-analogique-de-mesure-de-lenergie\/","title":{"rendered":"Circuit frontal analogique de mesure de l&rsquo;\u00e9nergie"},"content":{"rendered":"<p>Le MCP3911 pouvant s&rsquo;accommoder d&rsquo;une alimentation de 2,7 &agrave; 3,6 V pour ses sections analogique et num&eacute;rique, l&rsquo;interface est simplifi&eacute;e car elle fonctionne sur le m&ecirc;me rail d&rsquo;alimentation que le microcontr&ocirc;leur. La conception de syst&egrave;mes de mesure et de surveillance de l&rsquo;&eacute;nergie est facilit&eacute;e gr&acirc;ce &agrave; une tension de r&eacute;f&eacute;rence interne &agrave; faible coefficient de temp&eacute;rature et &agrave; la pr&eacute;sence d&rsquo;amplificateurs de gain programmables (PGA) sur chaque canal. Tandis que les infrastructures de mesure de l&rsquo;&eacute;nergie se modernisent dans le monde entier et que le march&eacute; de la surveillance de la consommation &eacute;lectrique se d&eacute;veloppe, les d&eacute;veloppeurs de syst&egrave;mes de mesure de l&rsquo;&eacute;nergie et autres applications d&rsquo;acquisition de signaux cherchent de nouveaux moyens d&rsquo;am&eacute;liorer les performances tout en minimisant les co&ucirc;ts. Microchip r&eacute;pond &agrave; ces attentes avec les AFE les plus pr&eacute;cis du march&eacute; qui, gr&acirc;ce &agrave; leur mode faible consommation, r&eacute;duisent la consommation &eacute;lectrique&nbsp;; comme ils permettent, en plus, de limiter le nombre de rails d&rsquo;alimentation et le nombre de composants externes, les co&ucirc;ts syst&egrave;me sont &eacute;galement minimis&eacute;s.<br \/>\nMicrochip annonce &eacute;galement le lancement d&rsquo;un nouvel outil permettant de d&eacute;velopper avec ce nouvel AFE&nbsp;: la carte d&rsquo;&eacute;valuation MCP3911 pour microcontr&ocirc;leurs 16&nbsp;bits (ADM00398), disponible d&egrave;s &agrave; pr&eacute;sent sur le site, au prix de 79,99&nbsp;USD.<\/p>\n<p><a href=\"http:\/\/www.microchip.com\/get\/XA2A\" target=\"_blank\" title=\"www.microchip.com\/get\/XA2A\" rel=\"noopener\">www.microchip.com\/get\/XA2A<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Microchip annonce le lancement de son circuit frontal analogique (ou AFE pour Analogue Front End) de mesure de l&rsquo;\u00e9nergie de derni\u00e8re g\u00e9n\u00e9ration, le MCP3911, dot\u00e9 de deux CAN delta-sigma 24 bits fonctionnant \u00e0 3 V, affichant une pr\u00e9cision in\u00e9gal\u00e9e pour un rapport SINAD (signal+bruit+distorsion) de 94,5 dB et un taux de distorsion harmonique THD de 106,5 dB. Gr\u00e2ce \u00e0 ces caract\u00e9ristiques, depuis le courant de seuil jusqu&rsquo;au courant maximum, la pr\u00e9cision du compteur d&rsquo;\u00e9nergie et de la surveillance de consommation \u00e9lectrique est am\u00e9lior\u00e9e, et le temps de calibration en production est r\u00e9duit. \u00c9quip\u00e9s de quatre modes d&rsquo;alimentation diff\u00e9rents, ils permettent de cr\u00e9er des syst\u00e8mes tr\u00e8s peu \u00e9nergivores, consommant 0,8 mA par canal, tout comme des syst\u00e8mes pour signaux \u00e0 vitesse \u00e9lev\u00e9e ou \u00e0 couverture harmonique \u00e9tendue. <\/p>\n","protected":false},"author":22,"featured_media":224182,"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-224181","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Circuit frontal analogique de mesure de l&#039;\u00e9nergie ...<\/title>\n<meta name=\"description\" content=\"Microchip annonce le lancement de son circuit frontal analogique (ou AFE pour Analogue Front End) de mesure de l&#039;\u00e9nergie de derni\u00e8re g\u00e9n\u00e9ration, le...\" \/>\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\/224181\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Circuit frontal analogique de mesure de l&#039;\u00e9nergie\" \/>\n<meta property=\"og:description\" content=\"Microchip annonce le lancement de son circuit frontal analogique (ou AFE pour Analogue Front End) de mesure de l&#039;\u00e9nergie de derni\u00e8re g\u00e9n\u00e9ration, le MCP3911, dot\u00e9 de deux CAN delta-sigma 24 bits fonctionnant \u00e0 3 V, affichant une pr\u00e9cision in\u00e9gal\u00e9e pour un rapport SINAD (signal+bruit+distorsion) de 94,5 dB et un taux de distorsion harmonique THD de 106,5 dB. Gr\u00e2ce \u00e0 ces caract\u00e9ristiques, depuis le courant de seuil jusqu&#039;au courant maximum, la pr\u00e9cision du compteur d&#039;\u00e9nergie et de la surveillance de consommation \u00e9lectrique est am\u00e9lior\u00e9e, et le temps de calibration en production est r\u00e9duit. \u00c9quip\u00e9s de quatre modes d&#039;alimentation diff\u00e9rents, ils permettent de cr\u00e9er des syst\u00e8mes tr\u00e8s peu \u00e9nergivores, consommant 0,8 mA par canal, tout comme des syst\u00e8mes pour signaux \u00e0 vitesse \u00e9lev\u00e9e ou \u00e0 couverture harmonique \u00e9tendue.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/224181\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2012-04-29T22:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/import\/eci3287_microchip.jpg\" 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