Electricity: battery or capacitor charging or discharging – Battery or cell discharging – With charging
Reexamination Certificate
2011-07-19
2011-07-19
Tso, Edward (Department: 2858)
Electricity: battery or capacitor charging or discharging
Battery or cell discharging
With charging
C320S137000, C320S139000, C320S141000, C320S152000
Reexamination Certificate
active
07982431
ABSTRACT:
A detection circuit that reduces circuit scale. A plurality of current amplifiers respectively generate a plurality of detection signals corresponding to current flowing to a plurality of resistors. An error amplifier coupled to the plurality of current amplifiers compares the plurality of detection signals with a plurality of reference signals, respectively, to generate an error signal based on the comparison.
REFERENCES:
patent: 5808444 (1998-09-01), Saeki et al.
patent: 6246215 (2001-06-01), Popescu-Stanesti
patent: 7626371 (2009-12-01), Hoshino et al.
patent: 2002-078228 (2002-03-01), None
Ito Hidenobu
Kokubun Masatoshi
Matsumoto Takashi
Fujitsu Patent Center
Fujitsu Semiconductor Limited
Omar Ahmed
Tso Edward
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