Battery charging system

Details Battery charging system Battery charging system

1994-11-15

1996-11-19

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 21, 320 35, 320 39, H02J 704, H01M 1044

Patent

active

055766110

ABSTRACT:
A battery charging system which charges a battery in an electric appliance. The battery charging system includes circuitry to supply a charging current from a power supply circuit to the battery which is connected to a load appliance. Also included is a voltage detecting circuit which detects the battery terminal voltage to determine the completion of charging. When the load appliance is operated causing a change in the consumption of electric current, the control circuit suspends operation of the voltage detection circuit. As a result, the change of terminal voltage caused by the change of current consumption is not detected, and erroneous "full-charge" detection is prevented.

REFERENCES:
patent: 5185565 (1993-02-01), Uchida
patent: 5274320 (1993-12-01), Yamaguchi
patent: 5371456 (1994-12-01), Brainard
patent: 5493199 (1996-02-01), Koenck et al.
patent: 5519302 (1996-05-01), Mino et al.

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