{"id":136390,"date":"2017-12-08T01:31:44","date_gmt":"2017-12-08T01:31:44","guid":{"rendered":"https:\/\/\/drivers-de-moteur-ajustant-automatiquement-la-puissance\/"},"modified":"2017-12-08T01:31:44","modified_gmt":"2017-12-08T01:31:44","slug":"drivers-de-moteur-ajustant-automatiquement-la-puissance","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/drivers-de-moteur-ajustant-automatiquement-la-puissance\/","title":{"rendered":"Drivers de moteur ajustant automatiquement la puissance"},"content":{"rendered":"<p>Les TB67S249FTG et TB67S279FTG permettent aux moteurs de se d\u00e9placer avec pr\u00e9cision \u00e0 des vitesses \u00e9lev\u00e9es, sous diff\u00e9rentes conditions de charge, tout en minimisant la consommation, l\u2019\u00e9chauffement et les co\u00fbts syst\u00e8me.&nbsp;Ces drivers sont parfaits pour les applications de robotique, de fabrication de pr\u00e9cision ou d&rsquo;impression 3D, n\u00e9cessitant un contr\u00f4le stable, pr\u00e9cis et rapide.<\/p>\n<p>Ces nouveaux drivers de moteur pas-\u00e0-pas Toshiba int\u00e8grent la technologie \u00ab\u00a0anti-calage\u00a0\u00bb et la technologie AGC (Active Gain Control) propri\u00e9taires de la soci\u00e9t\u00e9, qui \u00e9vitent au moteur de caler et d\u2019\u00eatre endommag\u00e9. La technologie AGC surveille en permanence le couple moteur, et optimise automatiquement le courant moteur, pour s\u2019adapter aux conditions de charge, sans n\u00e9cessiter de microcontr\u00f4leur additionnel. En fonctionnant au courant nominal plut\u00f4t qu\u2019avec des courant \u00e9lev\u00e9s, ces dispositifs r\u00e9duisent jusqu\u2019\u00e0 80% la puissance et l\u2019\u00e9chauffement, par rapport aux produits existants priv\u00e9s de la fonction AGC, tout en maintenant la pr\u00e9cision et le rendement du moteur, sous un large \u00e9ventail de charges et de vitesses.<\/p>\n<p>Avec une tension op\u00e9rationnelle maximale de 50V, le TB67S249FTG produit un impressionnant courant maximal de 4,5A, tandis que le TB67S279FTG fournit un courant nominal de 2,0A. En outre, ces drivers de moteur disposent de la technologie propri\u00e9taire ACDS (Advanced Current Detection System, ou syst\u00e8me de d\u00e9tection de courant avanc\u00e9) brevet\u00e9e par Toshiba, qui \u00e9vite le recours \u00e0 une r\u00e9sistance de d\u00e9tection haute-puissance, \u00e0 la fois encombrante et co\u00fbteuse, ce qui permet de gagner de la place sur le circuit imprim\u00e9 et de r\u00e9duire le co\u00fbt du syst\u00e8me.&nbsp;<\/p>\n<p>Afin de r\u00e9duire le bruit et les vibrations, ces dispositifs sont capables de g\u00e9rer des pas entiers, des demi-pas et des quart de pas, mais aussi des r\u00e9solutions 1\/8,1\/16 et 1\/32 de pas, qui permettent des mouvements rapides et pr\u00e9cis. Ils sont aussi capables d\u2019identifier un certain nombre de conditions d&rsquo;erreur (thermique, surintensit\u00e9, tension insuffisante, et rupture de charge moteur) qui am\u00e9liorent la s\u00e9curit\u00e9 et la fiabilit\u00e9 du syst\u00e8me.<\/p>\n<p>Log\u00e9s en bo\u00eetier QFN48 de 7&nbsp;x&nbsp;7&nbsp;mm optimis\u00e9 thermiquement, ces trois dispositifs sont compatibles au niveau brochage, ce qui permet aux fabricants de concevoir une carte unique pour r\u00e9pondre \u00e0 plusieurs besoins de performance.<\/p>\n<p><a href=\"http:\/\/OX2Z.trk.elasticemail.com\/tracking\/click?msgid=lkNX5AXo7EO-tGlXMVo6rg2&amp;target=http%253a%252f%252fwww.toshiba.semicon-storage.com&amp;v=vB5RIWeZvKvHfU0Nl5oIng2&amp;lc=935125306589741087\">www.toshiba.semicon-storage.com<\/a>.&nbsp; &nbsp;&nbsp;<\/p>\n<p><b>&nbsp;<\/b><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Toshiba Electronics Europe a pr\u00e9sent\u00e9 deux nouveaux drivers de moteur pas-\u00e0-pas capables de d\u00e9tecter une charge excessive sur le moteur, et d\u2019en ajuster automatiquement la puissance pour s&rsquo;adapter \u00e0 cette charge.\u00a0<\/p>\n","protected":false},"author":9,"featured_media":136391,"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-136390","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Drivers de moteur ajustant automatiquement la puissance ...<\/title>\n<meta name=\"description\" content=\"Toshiba Electronics Europe a pr\u00e9sent\u00e9 deux nouveaux drivers de moteur pas-\u00e0-pas capables de d\u00e9tecter une charge excessive sur le moteur, et d\u2019en...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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