Multi-stage battery charging system

Details Multi-stage battery charging system Multi-stage battery charging system

1998-09-17

2000-08-15

Tso, Edward H.

Electricity: battery or capacitor charging or discharging

Diverse charging or discharging rates for plural batteries

320136, H01M 1044, H01M 1046

Patent

active

061041653

ABSTRACT:
In a secondary battery charging system and charging apparatus, when using either a step-down method or a constant-current/constant-voltage method of charging a secondary battery, a switching regulator is used to vary the charging current supplied to a secondary battery in accordance with the duty cycle of one pulse, so that a voltage that exceeds a pre-established voltage value is not applied to the secondary battery.

REFERENCES:
patent: 5477130 (1995-12-01), Hashimoto et al.
patent: 5608304 (1997-03-01), Okumura
patent: 5708350 (1998-01-01), Tibbs
patent: 5729115 (1998-03-01), Wakefield
patent: 5818202 (1998-10-01), Miyamoto et al.

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