H - Electricity – 02 – J
Patent
H - Electricity
02
J
H02J 9/06 (2006.01)
Patent
CA 2543412
Systems and methods for switching to a back-up power supply are provided. One such system includes a threshold detector circuit (102); a first switching circuit (108-2) for enabling access to a first power source, the first switching circuit comprising at least a first transistor; and a second switching circuit (108-1) for enabling access to a second power source, the second switching circuit comprising at least a second transistor; wherein the threshold detector is configured to cause the second switching circuit to enable access to the second power supply responsive to a voltage provided by the first power supply dropping below a predetermined threshold.
L'invention concerne des systèmes et des procédés pour la commutation sur une alimentation de secours. On décrit un système comprenant un circuit détecteur de seuil ; un premier circuit de commutation permettant l'accès à une première source d'alimentation, qui comporte au moins un premier transistor ; et un second circuit de commutation permettant l'accès à une seconde source d'alimentation, qui comporte au moins un second transistor. Le circuit détecteur de seuil est conçu pour amener le second circuit de commutation à permettre l'accès à la seconde source alimentation, suite à l'abaissement d'une tension fournie par la première source alimentation au-dessous d'un seuil préétabli.
Anderson John D.
Duggan Michael P.
Gowling Lafleur Henderson Llp
Scientific-Atlanta Inc.
LandOfFree
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