Method of preventing battery over-discharge and a battery pack w

Details Method of preventing battery over-discharge and a battery pack w Method of preventing battery over-discharge and a battery pack w

1997-07-22

1999-04-27

Tso, Edward H.

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

Regulated discharging

H01M 1044, H01M 1046

Patent

active

058982930

ABSTRACT:
The method of preventing battery over-discharge measures battery voltage with a control circuit, and switches an over-discharge protection switch connected in series with the batteries off with the control circuit when battery voltage drops below a minimum set voltage. Once the over-discharge protection switch turns to an off state, the off voltage at the output side of the switch is measured, and the over-discharge protection switch is held in the off state by this off voltage. When battery voltage rises above the minimum set voltage, return of the over-discharge protection switch to the on state is prevented.

REFERENCES:
patent: 5477124 (1995-12-01), Tamai
patent: 5705911 (1998-01-01), Tamai
patent: 5742148 (1998-04-01), Sudo et al.

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