{"id":227714,"date":"2013-08-11T22:00:00","date_gmt":"2013-08-11T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/circuit-de-commande-moteur-dc-haute-tension\/"},"modified":"2013-08-11T22:00:00","modified_gmt":"2013-08-11T22:00:00","slug":"circuit-de-commande-moteur-dc-haute-tension","status":"publish","type":"post","link":"https:\/\/test.ecinews.fr\/fr\/circuit-de-commande-moteur-dc-haute-tension\/","title":{"rendered":"Circuit de commande moteur DC haute tension"},"content":{"rendered":"

Ce nouveau composant intègre 6 drivers capables de piloter une large gamme de MOSFET ou d’IGBT canal N. Les commandes de grilles sont configurées en trois commandes high-side haute tension et trois commandes low-side. Les 3 commandes high-side sont isolées jusqu’à 600V pour permettre un fonctionnement haute tension des moteurs, et utilisent une capacité de bootstrap pour fournir une tension supérieure à la tension de commande des grilles requise par les MOSFET canal N. Chaque MOSFET peut être contrôlé avec un niveau logique TTL compatible avec les systèmes 3.3V et 5V
\nUne seule tension d’alimentation fournit l’alimentation des grilles et la charge des condensateurs de bootstrap. Un régulateur interne permet d’alimenter la logique interne. L’A4900 intègre des mesures internes pour s’assurer que les tensions grille-source des transistors high-side et low-side sont supérieures à 9V en fonctionnement.
\nLes entrées de commande de l’A4900 fournissent un solution très flexible pour beaucoup d’applications de commande moteur. Chaque MOSFET peut être commandé avec un signal PWM indépendant, permettant d’implémenter toutes les méthodes d’excitation de moteur y compris les commandes en trapèzes et en sinusoïdes.
\nL’A4900KLQTR-T est proposé dans un boîtier QSOP 44 broches.<\/p>\n

www.allegromicro.com\/en\/Products\/Motor-Driver-And-Interface-ICs\/Brushless-DC-Motor-Drivers\/A4900.aspx<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Le nouveau A4900 d’Allegro Microsystems Europe est un circuit contr\u00f4leur de MOSFET haute tension (600V) con\u00e7u pour le pilotage de moteur DC brushless. Ce composant permet notamment le contr\u00f4le de moteur haute tension dans les v\u00e9hicules hybrides et \u00e9lectriques et pour les syst\u00e8mes automobiles fonctionnant avec une batterie de 48V tels que les directions assist\u00e9es \u00e9lectriques, les compresseurs de climatisation, pompes, ventilateurs. L’A4900 est aussi disponible dans une version non automobile pour les applications industrielles.<\/p>\n","protected":false},"author":22,"featured_media":227715,"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-227714","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"Circuit de commande moteur DC haute tension ...<\/title>\n<meta name=\"description\" content=\"Le nouveau A4900 d'Allegro Microsystems Europe est un circuit contr\u00f4leur de MOSFET haute tension (600V) con\u00e7u pour le pilotage de moteur DC brushless. 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