Charging-and-discharging control device, a battery pack, and an

Details Charging-and-discharging control device, a battery pack, and an Charging-and-discharging control device, a battery pack, and an

1997-01-17

1998-09-01

Tso, Edward

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

Regulated discharging

H01M 1046

Patent

active

058015140

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: 4132942 (1979-01-01), Yamamoto
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: 5304915 (1994-04-01), Sampei et al.
patent: 5397974 (1995-03-01), Tamai et al.
patent: 5477130 (1995-12-01), Hashimoto et al.
patent: 5526215 (1996-06-01), Higashijima et al.
patent: 5547775 (1996-08-01), Eguchi et al.
patent: 5617010 (1997-04-01), Higashijima et al.

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