Battery state monitoring circuit and battery device

Details Battery state monitoring circuit and battery device Battery state monitoring circuit and battery device

2006-12-07

2009-06-23

Tso, Edward (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

Reexamination Certificate

active

07550947

ABSTRACT:
Provided are a battery state monitoring circuit in which charging of a secondary battery in an over-charge detection state is prevented to improve safety, and a battery device including the battery state monitoring circuit. A circuit for consuming a leakage current is provided in the battery state monitoring circuit to prevent the secondary battery from being charged with the leakage current.

REFERENCES:
patent: 5949233 (1999-09-01), Mashiko
patent: 2002/0109486 (2002-08-01), Tange et al.

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