Automatic backup battery connection

Details Automatic backup battery connection Automatic backup battery connection

H - Electricity

02

J

H02J 9/00 (2006.01) G11C 5/14 (2006.01) H01R 31/08 (2006.01) H02J 9/06 (2006.01) H05K 1/00 (2006.01) H05K 1/11 (2006.01)

Patent

CA 2089994

A method and apparatus are described for selectively activating a secondary power source, such as a backup battery, for an electronic device, such as dynamic RAM. A connector is described in conjunction with a circuit board including a first contact coupled to the backup battery, and a second contact coupled to the corresponding input for backup power associated with an electronic device. In this state, an open circuit is presented such that the battery is isolated from the electronic device. A socket is described for cooperating with the connector, which includes mating contacts corresponding to the first and second contacts previously described, and means for establishing electrical continuity between these mating contacts. In this manner, a completed circuit is established between the battery and the electronic circuit device when the socket is attached. A bypass connection is also described for maintaining connection between the battery and the electronic device independent of the socket, so that the circuit board may later be removed without threatening loss of accumulated memory contents.

L'invention est une méthode et un appareil servant à activer de façon sélective une source d'alimentation secondaire, telle qu'une pile de secours, pour un dispositif électronique, tel qu'une RAM dynamique. Un connecteur est associé à une carte de circuit portant un premier contact couplé à la pile de secours et un second contact couplé à l'entrée correspondante de l'alimentation de secours du dispositif électronique. Dans cette configuration, la pile est isolée du dispositif électronique par un circuit ouvert. L'appareil porte une prise associée au connecteur qui comporte des contacts adaptés au premier et au second contact mentionnés précédemment, ainsi qu'un dispositif de réalisation de la continuité électrique entre ces contacts adaptés. De cette façon, un circuit fermé est établi entre la pile et le dispositif électronique quand la connexion à la prise est faite. Une connexion en dérivation permet de maintenir la connexion entre la pile et le dispositif électronique indépendamment de la prise, de sorte que la carte de circuit peut être extraite sans risque de perte du contenu de la mémoire.

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