{"id":229456,"date":"2014-03-11T23:00:00","date_gmt":"2014-03-11T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/module-dc-dc-a-plage-de-tension-ultra-large\/"},"modified":"2014-03-11T23:00:00","modified_gmt":"2014-03-11T23:00:00","slug":"module-dc-dc-a-plage-de-tension-ultra-large","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/module-dc-dc-a-plage-de-tension-ultra-large\/","title":{"rendered":"Module DC-DC \u00e0 plage de tension ultra large"},"content":{"rendered":"<p>\nLes concepteurs d&rsquo;alimentations de cartes tireront avantage cette <br \/>\nlarge plage pour l&rsquo;ajuster &agrave; des tensions sp&eacute;cifiques entre 10 et 33 V <br \/>\net r&eacute;duire significativement la nomenclature. Gr&acirc;ce &agrave; elle, le module <br \/>\nr&eacute;pond aux sp&eacute;cifications de l&rsquo;AISG (Antenna Interface Standards Group),<br \/>\norganisme qui recommande une plage d&rsquo;alimentation de 10 &agrave; 30 V pour les<br \/>\nantennes RF et les stations de base. En outre, il est possible de <br \/>\nconnecter plusieurs sorties en parall&egrave;le lorsqu&rsquo;un plus fort courant est<br \/>\nexig&eacute;, ou en s&eacute;rie pour doubler la tension et alimenter les transistors<br \/>\nde puissance de 50 V ou plus. La combinaison d&rsquo;une large plage de <br \/>\nsortie et de la capacit&eacute; de mise en s&eacute;rie simplifient la conception et <br \/>\nacc&eacute;l&egrave;rent la mise sur le march&eacute;. Offrant l&#8217;empreinte standard &quot;seizi&egrave;me<br \/>\nde brique&quot; de 33 x 22,9 mm pour seulement 9,6 mm de hauteur, ce <br \/>\nconvertisseur d&eacute;livre jusqu&rsquo;&agrave; 100 W avec un rendement de 93,1 % &agrave; pleine<br \/>\ncharge pour une sortie de 30 V, ce qui garantit une faible dissipation <br \/>\nd&rsquo;&eacute;nergie et r&eacute;duit la consommation. Il affiche une remarquable <br \/>\nperformance thermique dans les applications o&ugrave; la circulation d&rsquo;air est <br \/>\nlimit&eacute;e. En effet, il peut fournir la pleine puissance jusqu&rsquo;&agrave; 90 &deg;C <br \/>\navec un flux d&rsquo;air &agrave; 3 m\/s, et, dans les pires conditions, d&eacute;livrer la <br \/>\npleine puissance jusqu&rsquo;&agrave; 76 &deg;C avec une convection naturelle.<\/p>\n<hr \/>\n<p>&quot;Alors que les &eacute;quipements orient&eacute;s centraux t&eacute;l&eacute;phoniques sont <br \/>\nprincipalement refroidis par ventilation, les modules RFPA ont recours &agrave;<br \/>\nla conduction thermique et aux techniques de paroi froide pour &eacute;vacuer <br \/>\nla chaleur dans l&rsquo;environnement externe,&quot; commente Patrick Le F&egrave;vre, <br \/>\nDirecteur Marketing et Communication d&rsquo;Ericsson Power Modules. &quot; Cela <br \/>\nexige que tous les composants de l&rsquo;amplificateur de puissance RF soient <br \/>\noptimis&eacute;s pour le refroidissement par conduction. Le layout du PKU4116C <br \/>\nutilise nos techniques avanc&eacute;es pour dissiper la chaleur des composants &agrave;<br \/>\ntravers des ferrites interfac&eacute;es &agrave; la paroi froide.&quot; Avec une plage de <br \/>\ntension d&rsquo;entr&eacute;e de 36 V &agrave; 75 V, ce dispositif est con&ccedil;u en premier lieu<br \/>\npour les applications aliment&eacute;es par un bus centralis&eacute; de 48 V. <br \/>\nCependant, son efficacit&eacute; et sa souplesse, ainsi que sa large plage de <br \/>\ntension de sortie de 10 &agrave; 33 V, lui permettent de r&eacute;pondre &eacute;galement &agrave; <br \/>\nune vari&eacute;t&eacute; d&rsquo;applications dans le domaine industriel et du contr&ocirc;le de <br \/>\nprocessus, comme les &eacute;crans aliment&eacute;s en 28 V ou les bus 12 V couramment<br \/>\nutilis&eacute;s dans les syst&egrave;mes d&rsquo;automatisation.<br \/>\n<a href=\"http:\/\/www.ericsson.com\/powermodules\" target=\"_blank\" title=\"www.ericsson.com\/powermodules\" rel=\"noopener\"><br \/>\nwww.ericsson.com\/powermodules<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Con\u00e7u pour alimenter les applications d\u2019amplificateurs de puissance RF (RFPA), le module convertisseur DC-DC PKU4116C d\u2019Ericsson se caract\u00e9rise par une plage de tension de sortie ultra large, ajustable de 10 \u00e0 33 V. De plus, il peut d\u00e9livrer jusqu\u2019\u00e0 100 W pour une sortie de 3,3 A, ce qui convient pour les applications RFPA \u00e0 technologies de semi-conducteurs LDMOS ou nitrure de Gallium (GaN).<\/p>\n","protected":false},"author":22,"featured_media":229457,"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-229456","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Module DC-DC \u00e0 plage de tension ultra large ...<\/title>\n<meta name=\"description\" content=\"Con\u00e7u pour alimenter les applications d\u2019amplificateurs de puissance RF (RFPA), le module convertisseur DC-DC PKU4116C d\u2019Ericsson se caract\u00e9rise par une...\" \/>\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\/229456\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Module DC-DC \u00e0 plage de tension ultra large\" \/>\n<meta property=\"og:description\" content=\"Con\u00e7u pour alimenter les applications d\u2019amplificateurs de puissance RF (RFPA), le module convertisseur DC-DC PKU4116C d\u2019Ericsson se caract\u00e9rise par une plage de tension de sortie ultra large, ajustable de 10 \u00e0 33 V. De plus, il peut d\u00e9livrer jusqu\u2019\u00e0 100 W pour une sortie de 3,3 A, ce qui convient pour les applications RFPA \u00e0 technologies de semi-conducteurs LDMOS ou nitrure de Gallium (GaN).\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/229456\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2014-03-11T23:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/import\/eci6792_ericsson_e0184_pku4116c-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1819\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"eeNews Europe\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta 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