Charging and discharging control circuit and charging type...

Details Charging and discharging control circuit and charging type... Charging and discharging control circuit and charging type...

2007-08-07

2010-06-15

Tso, Edward (Department: 2858)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

Reexamination Certificate

active

07737663

ABSTRACT:
Provided is a charging and discharging protection circuit realizing low current consumption in an overcurrent detection state, easy calculation of an automatic return impedance, and high usability. A pull-down circuit for pulling down an overcurrent detection terminal to a VSS terminal is connected in series between the overcurrent detection terminal and a switching circuit. The switching circuit is connected in series between the pull-down circuit and the VSS terminal.

REFERENCES:
patent: 5959436 (1999-09-01), Takashina et al.
patent: 6316915 (2001-11-01), Fujiwara et al.
patent: 6501248 (2002-12-01), Fujiwara
patent: 6504345 (2003-01-01), Sakurai et al.
patent: 2001/0052759 (2001-12-01), Sakurai et al.
patent: 2002-34163 (2002-01-01), None
patent: 2002-238173 (2002-08-01), None
patent: 2006-121900 (2006-05-01), None

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