Battery charging system

Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries

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Details

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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