Rechargeable battery protection circuit

Details Rechargeable battery protection circuit Rechargeable battery protection circuit

1997-03-24

1998-06-09

Tso, Edward

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

320136, H01M 1046

Patent

active

057640335

ABSTRACT:
The rechargeable battery protection circuit of this invention is provided with a switching system connected in series with the rechargeable battery, a current detection system to measure charging current flowing through the rechargeable battery, and a control system to control the switching system on and off depending on measurement results from the current detection system. The control system puts the switching system in the off state when charging current greater than a specified value flows through the rechargeable battery. This prevents rechargeable battery charging with excessive current.

REFERENCES:
patent: 5397974 (1995-03-01), Tamai et al.
patent: 5477124 (1995-12-01), Tamai
patent: 5477130 (1995-12-01), Hashimoto et al.
patent: 5493197 (1996-02-01), Eguchi et al.
patent: 5526215 (1996-06-01), Higashijima et al.
patent: 5585994 (1996-12-01), Tamai et al.

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