Battery charging apparatus, battery pack, battery charging...

Details Battery charging apparatus, battery pack, battery charging... Battery charging apparatus, battery pack, battery charging...

2011-08-09

2011-08-09

Tso, Edward (Department: 2858)

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With individual charging of plural batteries or cells

C320S116000, C320S139000, C320S142000, C320S160000

Reexamination Certificate

active

07994754

ABSTRACT:
A battery pack charging method and battery charging apparatus including: a plurality of charge units which charge respective battery cells of the battery pack, by outputting pulse currents, generated from a supplied DC voltage, in response to enable signal; and a plurality of signal detection units to detect a falling edge of the pulse currents and to output the enable signals to the charge units.

REFERENCES:
patent: 6281661 (2001-08-01), Kaite et al.
patent: 7554292 (2009-06-01), Veselic

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