Charging control apparatus

Details Charging control apparatus Charging control apparatus

1996-08-02

1997-12-30

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 32, 320 35, 320 39, 320 48, H02J 700, H01M 1046

Patent

active

057034664

ABSTRACT:
A charging control apparatus for controlling a charging current supplied to a secondary battery has a pre-charge secondary battery status decision circuit for determining a discharged status of the secondary battery when it starts being charged, and a charging pattern control circuit for controlling the charging current supplied to the secondary battery at progressively smaller constant stepwise levels according to a charging pattern based on the discharged status of the secondary battery as determined by the pre-charge secondary battery status decision circuit each time the voltage across the secondary battery reaches a predetermined value, and charging the secondary battery with the charging current which is controlled at the progressively smaller constant stepwise levels.

REFERENCES:
patent: 5367244 (1994-11-01), Rose et al.
patent: 5412306 (1995-05-01), Meadows et al.
patent: 5561360 (1996-10-01), Ayres et al.
patent: 5596259 (1997-01-01), Mino et al.

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