Current control interface arrangement

Details Current control interface arrangement Current control interface arrangement

G - Physics

05

F

G05F 1/10 (2006.01) H02H 9/00 (2006.01)

Patent

CA 2220742

A current control interface arrangement includes a card circuit and a connector means. The connector means is adapted to generate, from the supply voltage terminals, an enable signal which is directly correlated to the moment of insertion or extraction of the load from the power supply. The card circuit includes an active device to be coupled between a power supply terminal and a load, an enable controlled switch for delivering the correct voltage to the control terminal of the active device for turning on, respectively turning off this device and a time constant means for controlling the rate at which the active device isfurther rendered conductive. A very simple power supply sequencing apparatus including the current control interface arrangement allows for coupling a plurality of supply voltages to a card in descending order starting from the highest supply voltage to the lowest supply voltage.

Dispositif d'interface de commande de courant. Comprend une carte et un connecteur. Le connecteur est adapté pour produire, à partir des bornes de tension d'alimentation, un signal de validation qui est directement corrélé au moment de l'insertion ou de l'extraction de la charge provenant de l'alimentation. La carte comprend un dispositif actif destiné à être couplé entre une borne d'alimentation et une charge, un commutateur à validation pour appliquer à la borne de commande du dispositif actif la tension voulue pour mettre en marche et fermer ce dispositif, et un moyen à constante de temps pour commander la durée nécessaire pour que le dispositif actif devienne conducteur. Un appareil de mise sous tension progressive, comprenant le dispositif d'interface de commande de courant, permet d'appliquer un certain nombre de tensions d'alimentation à une carte suivant un ordre décroissant de valeurs de tension.

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