Battery cell balancing system

Details Battery cell balancing system Battery cell balancing system

2005-01-18

2005-01-18

Tibbits, Pia (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

Reexamination Certificate

active

06844703

ABSTRACT:
A battery cell balancing system (12) for a battery (30) having a plurality of cells (32) is provided. The system (12) includes a power supply (38) and a plurality of transformer/rectifier circuits (34) electrically coupled to the cells (32). Preferential charging occurs for a cell with the lowest state of charge. At least one current limiting device (36) is electrically coupled to the transformer/rectifier circuits (34) and the power supply (38). The current limiting device (36) buffers a source voltage from a reflected voltage of at least one of the plurality of cells (32). A method of performing the same is also provided.

REFERENCES:
patent: 5477132 (1995-12-01), Canter et al.
patent: 5614847 (1997-03-01), Kawahara et al.
patent: 5982143 (1999-11-01), Stuart
patent: 6369546 (2002-04-01), Canter

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