Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – Switchable to parallel connection
Patent
1997-04-09
1998-09-15
Tso, Edward
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
Switchable to parallel connection
320139, H01M 1046
Patent
active
058084444
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: 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
Kubo Takeshi
Ozawa Hidekiyo
Saeki Mituo
Fujitsu Limited
Tso Edward
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