{"id":223019,"date":"2011-11-22T23:00:00","date_gmt":"2011-11-22T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/alimentations-dc-250-350-w-dans-un-format-de-3-x-5\/"},"modified":"2011-11-22T23:00:00","modified_gmt":"2011-11-22T23:00:00","slug":"alimentations-dc-250-350-w-dans-un-format-de-3-x-5","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/alimentations-dc-250-350-w-dans-un-format-de-3-x-5\/","title":{"rendered":"Alimentations DC 250\/350 W dans un format de 3\u2019\u2019 x 5\u2019\u2019"},"content":{"rendered":"

Les alimentations séries EMH250 et EMH350 acceptent une tension d’entrée de 80 à 275 VAC et sont disponibles en quatre modèles couvrant les tensions nominales de sortie de +12, +18, +24 ou +48 VDC. Une fonction Trim permet l’ajustement de la tension à +\/- 10% de la valeur nominale. Tous ces modèles disposent d’une sortie complémentaire +12 VDC \/ 0.6 A pour alimenter un ventilateur. En plus, la version 350 W délivre un +5 VDC \/ 2.0 A standby. La pleine puissance est disponible dès 90 VAC et sans derating jusqu’à +50 °C de température de fonctionnement.
\nMesurant seulement  76.2 x 127 x 36.3 mm (3” x 5” x 1”.43), ces alimentations ne nécessitent que 12 CFM de ventilation pour délivrer leur pleine puissance. Un capot avec ventilateur sur le dessus peut donc être fourni en option et l’EMH350 offre l’option supplémentaire d’un ventilateur à vitesse variable en fonction de la température de l’alimentation. Cette version est aussi disponible avec un circuit de diodes qui permet l’équilibrage des courants pour les configurations à redondance  N+1.
\nUn choix de contrôles analogiques ou digitaux est également proposé. Les signaux analogiques fournissent Power Fail, Inhibit et l’équilibrage du courant. Les signaux digitaux sont accessibles à travers un bus compatible PMBus.<\/p>\n

www.xppower.com<\/a> <\/p>\n","protected":false},"excerpt":{"rendered":"

XP Power annonce des alimentations \u00e0 d\u00e9coupage mono tension haut rendement de puissance respective de 250 et 350 W. 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