Charging-and-discharging device, constant-voltage and constant-c

Details Charging-and-discharging device, constant-voltage and constant-c Charging-and-discharging device, constant-voltage and constant-c

1997-01-17

1999-05-18

Tso, Edward H.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With individual charging of plural batteries or cells

320122, H01M10/46

Patent

active

059053615

ABSTRACT:
A charging-and-discharging device in an electronic apparatus includes a rechargeable battery and a charging device for charging the battery. The charging-and-discharging device includes a switching circuit electrically isolating one terminal side of the battery from a ground side of the electronic apparatus. The charging-and-discharging device further includes a charge control section controlling the isolating of the one terminal side of the battery from the ground side of the electronic apparatus by turning off the switching circuit during charging of the battery. In the charging-and-discharging device, the one terminal side of the battery is isolated from the ground side of the electronic apparatus by the switching circuit during charging of the battery and a closed loop including the charging device and the battery is established to charge the battery.

REFERENCES:
patent: 4061955 (1977-12-01), Thomas et al.
patent: 4313078 (1982-01-01), Bilsky et al.
patent: 4433277 (1984-02-01), Carollo et al.
patent: 5218285 (1993-06-01), Carlton et al.
patent: 5254930 (1993-10-01), Daly
patent: 5264777 (1993-11-01), Smead
patent: 5371454 (1994-12-01), Marek
patent: 5486749 (1996-01-01), Brainard
patent: 5847775 (1996-08-01), Eguchi et al.

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