Battery control apparatus and method for preventing...

Details Battery control apparatus and method for preventing... Battery control apparatus and method for preventing...

2007-02-20

2009-12-15

Tso, Edward (Department: 2858)

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

Reexamination Certificate

active

07633264

ABSTRACT:
A battery pack control apparatus for a battery pack that includes a plurality of unit cells electrically connected in series prevents overdischarging based on the total voltage of the battery pack, as opposed to being based on the separate voltages of the individual unit cells. When a total voltage of the battery pack corresponds to a lowest voltage of one of the plurality of unit cells decreasing to a predetermined threshold at which overdischarging would begin to occur, power supply to a load from the battery pack is at least partially restricted.

REFERENCES:
patent: 5132606 (1992-07-01), Herbert
patent: 2002/0024319 (2002-02-01), Haraguchi et al.
patent: 2004-166367 (2004-06-01), None

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