{"id":103444,"date":"2018-11-13T23:01:44","date_gmt":"2018-11-13T23:01:44","guid":{"rendered":"https:\/\/\/capteurs-de-courant-a-effet-hall-offrant-des-performances-et-des-fonctions-de-diagnostic-ameliorees\/"},"modified":"2018-11-13T23:01:44","modified_gmt":"2018-11-13T23:01:44","slug":"capteurs-de-courant-a-effet-hall-offrant-des-performances-et-des-fonctions-de-diagnostic-ameliorees","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/capteurs-de-courant-a-effet-hall-offrant-des-performances-et-des-fonctions-de-diagnostic-ameliorees\/","title":{"rendered":"Capteurs de courant \u00e0 effet Hall offrant des performances et des fonctions de diagnostic am\u00e9lior\u00e9es"},"content":{"rendered":"

Ces deux circuits sont destin\u00e9s aux applications automobiles, en particulier aux applications de surveillance du courant de phase des inverteurs ou de surveillance des liaisons \u00e0 courant continu, pour lesquelles l’effet Hall est la solution pr\u00e9f\u00e9r\u00e9e depuis plus d’une d\u00e9cennie. Outre la commande de moteur de traction, ces dispositifs sont \u00e9galement adapt\u00e9s \u00e0 d’autres applications embarqu\u00e9es comme les convertisseurs continu-continu, les bo\u00eetiers de raccordement de batterie, ou toute application n\u00e9cessitant une mesure de courant (ou de surintensit\u00e9) rapide et tr\u00e8s pr\u00e9cise.<\/p>\n

Le nouveau c\u0153ur CMOS et le nouveau conditionnement d’origine am\u00e9liorent la d\u00e9rive de sensibilit\u00e9 thermique (33%) et la d\u00e9rive d\u2019erreur thermique (50%) par rapport \u00e0 la g\u00e9n\u00e9ration pr\u00e9c\u00e9dente. Ces nouveaux capteurs disposent aussi d\u2019un filtrage embarqu\u00e9 plus complet et sont capables de d\u00e9tecter les courts circuits, pour indiquer un d\u00e9faut dans la distribution \u00e9lectrique. Un meilleur rapport signal\/bruit est obtenu gr\u00e2ce \u00e0 un compromis entre r\u00e9solution, temps de r\u00e9ponse et bande passante du capteur, permis par le filtrage embarqu\u00e9 sur la puce.<\/p>\n

Un bo\u00eetier SIP-4 mince abrite le MLX91217, et permet son int\u00e9gration dans des anneaux de mesure \u00e0 effet Hall conventionnels. Ce bo\u00eetier traversant compact est disponible avec diff\u00e9rentes longueurs et diff\u00e9rentes formes de pattes, ce qui lui permet d’tre compatible avec les cartes en technologie CMS.Le MLX91216 est log\u00e9 dans un bo\u00eetier SO8 classique adapt\u00e9 au placement CMS. Sa technologie IMC simplifie la mesure de courant sans anneau de concentration ferromagn\u00e9tique externe, ce qui facilite le montage, tout en r\u00e9duisant la taille, le poids et le co\u00fbt. Les deux capteurs sont homologu\u00e9s AEC-Q100 Grade 0 pour les applications automobiles, et fonctionnent dans la plage de temp\u00e9rature allant de -40\u00b0C \u00e0 +150\u00b0C.<\/p>\n

www.melexis.com<\/a><\/p>\n

L\u2019Alliance ISELED s’agrandit pour stimuler l’av\u00e8nement du \u00ab\u00a0Digital LED\u00a0\u00bb<\/a><\/h3>\n

Driver de ventilateur \u00e0 faible bruit pour applications automobiles<\/a><\/h3>\n

Les progr\u00e8s de la technologie des capteurs seront d\u00e9terminants pour les projets automobile de nouvelle g\u00e9n\u00e9ration<\/a><\/h3>\n","protected":false},"excerpt":{"rendered":"

Fond\u00e9s sur plus de 20 ans d’exp\u00e9rience dans la technologie \u00e0 effet Hall, ces deux nouveaux capteurs propos\u00e9s par Melexis partagent le m\u00eame c\u0153ur CMOS hautes performances, mais le MLX91217 utilise la technologie Hall conventionnelle, tandis que le MLX91216 fait appel au concentrateur IMC (Integrated Magneto Concentrator, ou concentrateur magn\u00e9tique int\u00e9gr\u00e9) propri\u00e9taire de Melexis.<\/p>\n","protected":false},"author":9,"featured_media":103445,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1141],"class_list":["post-103444","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"Capteurs de courant \u00e0 effet Hall offrant des performances et d...<\/title>\n<meta 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