Power supply for battery powered devices

Details Power supply for battery powered devices Power supply for battery powered devices

H - Electricity

02

J

H02J 7/00 (2006.01)

Patent

CA 2642153

An auxiliary power supply (150) includes an auxiliary battery (152), power supply circuitry (154), and a connector (108b). The power supply circuitry (154) supplies an output which provides electrical energy for powering the electrical circuitry (102) of a battery powered device (100) and for recharging a battery (104) associated therewith. In one embodiment, the power supply circuitry (154) supplies an output current which is a function of the charge state of the auxiliary battery (152) and a load current presented by the electrical circuitry (102).

L'invention concerne un bloc d'alimentation auxiliaire (150), qui comprend un accumulateur de réserve (152), des circuits d'alimentation électrique (154) et un connecteur (108b). Les circuits d'alimentation électrique (154) produisent une sortie fournisant une énergie électrique destinée à alimenter les circuits électriques (102) d'un dispositif alimenté par accumulateur (100) et à recharger un accumulateur (104) associé. Dans un mode de réalisation, les circuits d'alimentation électrique (154) produisent un courant de sortie en fonction de l'état de charge de l'accumulateur de réserve (152) et d'un courant de charge fourni par les circuits électriques (102).

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