{"id":223351,"date":"2012-01-08T23:00:00","date_gmt":"2012-01-08T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/circuit-encodeur-12-bits-rapide-universel\/"},"modified":"2012-01-08T23:00:00","modified_gmt":"2012-01-08T23:00:00","slug":"circuit-encodeur-12-bits-rapide-universel","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/circuit-encodeur-12-bits-rapide-universel\/","title":{"rendered":"Circuit encodeur 12 bits rapide universel"},"content":{"rendered":"<p>L&rsquo;iC-MH8 int&egrave;gre une matrice de capteurs &agrave; effet Hall avec commande d&rsquo;amplification du signal, deux interpolateurs pour signal incr&eacute;mental (ABZ, 12&nbsp;bits) et signal de commutation (UVW), des sorties diff&eacute;rentielles sinus\/cosinus (1&nbsp;VPP pour 100&nbsp;&#8486;), des drivers de ligne RS422, et une interface s&eacute;rie SSI\/BiSS.<br \/>\nL&rsquo;iC-MH8 est typiquement utilis&eacute; dans l&rsquo;industrie, l&rsquo;automobile, ou le m&eacute;dical, pour les applications suivantes&nbsp;:<br \/>\n&#8211; commande rapide de moteur&nbsp; &agrave; capteur de faible latence<br \/>\n&#8211; contr&ocirc;le de positionnement rapide pour robots &agrave; contraintes s&eacute;curit&eacute;<br \/>\n&#8211; contr&ocirc;le de vitesse jusqu&rsquo;&agrave; 120&nbsp;000&nbsp;tours\/mn avec une r&eacute;solution de 12&nbsp;bits<br \/>\n&#8211; d&eacute;tection et mesure absolue d&rsquo;angles de rotation<br \/>\n&#8211; encodeurs absolus universels (avec options sinus\/cosinus et SSI\/BiSS)<br \/>\n&#8211; r&eacute;solveurs de remplacement, ou encodeurs optiques absolus.<\/p>\n<p>La r&eacute;solution angulaire est programmable jusqu&rsquo;&agrave; 4096&nbsp;pas par tour. Gr&acirc;ce aux 8&nbsp;MHz maxi de la fr&eacute;quence du signal de sortie incr&eacute;mental ABZ, des vitesses de rotation jusqu&rsquo;&agrave; 120&nbsp;000&nbsp;tours\/mn peuvent &ecirc;tre enregistr&eacute;es. 360&nbsp;000&nbsp;tours\/mn peuvent &ecirc;tre obtenus avec une r&eacute;solution de 10&nbsp;bits.<br \/>\nLa commutation UVW est possible pour les moteurs &agrave; courant continu &agrave; 2, 4 ou 8&nbsp;p&ocirc;les. Pour les applications de s&eacute;curit&eacute;, les sorties diff&eacute;rentielles sinus\/cosinus permettent une&nbsp; saisie et une transmission redondantes de la position angulaire, sous forme d&rsquo;une tension 1&nbsp;VPP &agrave; 100&nbsp;&#8486;. Les sorties sinus\/cosinus, ABZ, et UVW ont &eacute;t&eacute; implant&eacute;es sous forme de drivers de ligne RS422 configurables, ce qui permet d&rsquo;adapter parfaitement le circuit, quels que soient la longueur et de d&eacute;bit de la ligne.<br \/>\nUne interface s&eacute;rie SSI\/BiSS-C bidirectionnelle ou synchrone est &eacute;galement int&eacute;gr&eacute;e pour fournir les donn&eacute;es. La r&eacute;solution, l&rsquo;hyst&eacute;r&eacute;sis, la distance de bord, les positions z&eacute;ro des signaux ABZ et UVW, et la direction de rotation de l&rsquo;iC-MH8 peuvent &eacute;galement &ecirc;tre configur&eacute;e par l&rsquo;interm&eacute;diaire de l&rsquo;interface BiSS-C. Ces param&egrave;tres peuvent &ecirc;tre stock&eacute;s de mani&egrave;re permanente en m&eacute;moire OTP-ROM.<br \/>\nUn r&eacute;gulateur de gain automatique compense les variations des signaux du capteur &agrave; effet Hall, induites par les fluctuations de temp&eacute;rature ambiante ou les variations de distance de l&rsquo;aimant.L&rsquo;iC-MH8 fonctionne sous une&nbsp; tension d&rsquo;alimentation de +5 V (&plusmn;10%), dans une plage de temp&eacute;rature de fonctionnement de -40&deg;C &agrave; +125&deg;C.<\/p>\n<p><a href=\"http:\/\/www.ichaus.com\/mh8\" target=\"_blank\" rel=\"noopener\">www.ichaus.com\/mh8<\/a><\/p>\n<p><strong>A propos d&rsquo;iC-Haus<\/strong><br \/>\nIC-Haus Gmbh est une soci&eacute;t&eacute; de semiconducteur bas&eacute;e en Allemagne qui se positionne comme un leader&nbsp; de la fabrication de circuits int&eacute;gr&eacute;s standards&nbsp; (ASSP) et sur mesure (ASIC). Les biblioth&egrave;ques de cellules iC-Haus en technologies CMOS, bipolaire, et BCD, sont parfaitement adapt&eacute;es &agrave; la conception d&rsquo;ASICs pour des applications capteurs, laser\/opto, ou actuateurs.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Propos\u00e9 par IC-Haus Gmbh, l&rsquo;iC-MH8 est une solution tr\u00e8s int\u00e9gr\u00e9e, destin\u00e9e aux commandes de moteur \u00e0 capteur magn\u00e9tique. Associ\u00e9 \u00e0 un aimant permanent magn\u00e9tis\u00e9 diam\u00e9tralement, ce circuit (bo\u00eetier QFN28 5&#215;5) permet de cr\u00e9er un encodeur universel robuste, pour la commutation et le positionnement d&rsquo;un moteur.<\/p>\n","protected":false},"author":22,"featured_media":223352,"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-223351","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Circuit encodeur 12 bits rapide universel ...<\/title>\n<meta name=\"description\" content=\"Propos\u00e9 par IC-Haus Gmbh, l&#039;iC-MH8 est une solution tr\u00e8s int\u00e9gr\u00e9e, destin\u00e9e aux commandes de moteur \u00e0 capteur magn\u00e9tique. 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