Charging battery system for video camera

Details Charging battery system for video camera Charging battery system for video camera

1996-09-04

1997-11-18

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 39, H02J 704, H02M 1044

Patent

active

056891725

ABSTRACT:
An electronic equipment having a rechargeable battery in combination with a power source adapter. A rechargeable battery is detachably mounted in the electronic equipment. The power source adapter is adapted for supplying power to the electronic equipment from outside, and includes a first battery loading unit for loading a rechargeable battery, a charging voltage generating unit for generating a charging voltage for charging both the loaded rechargeable battery and the rechargeable battery mounted in the electronic equipment, a switching unit for switching between supplying the charging voltage to the charging unit and supplying the charging voltage to the electronic equipment, a detection unit for detecting completion of charging of the rechargeable battery loaded on the power source adapter, and a switching control unit for controlling the switching of the switching unit responsive to the output of the detection unit.

REFERENCES:
patent: 4449089 (1984-05-01), Winkler
patent: 4920307 (1990-04-01), Iketani
patent: 5028859 (1991-07-01), Johnson et al.
patent: 5162719 (1992-11-01), Tomura et al.
patent: 5254931 (1993-10-01), Martensson
patent: 5287053 (1994-02-01), Hutchinson
EPO Search Report Patent Abstracts of Japan, JP4279876, May 10, 1992.

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