Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1993-12-30
1996-10-08
Nappi, Robert
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 15, 361683, H01M 1044
Patent
active
055634931
ABSTRACT:
A system comprises: a portable computer main body having therein a power source circuit section having a battery pack; and a plurality of auxiliary battery units which are mechanically connected and fixed to a casing of the computer main body and are electrically connected in series to a power source input terminal. A charge/discharge control section is provided for each of the auxiliary battery units. The charge/discharge control section sequentially charges from the auxiliary battery unit locating on the computer main body side when charging. On the contrary, the charge/discharge control section sequentially discharges from the auxiliary battery unit on the opposite side which is farthest from the computer main body when discharging. There is also a system construction having a single auxiliary battery unit.
REFERENCES:
patent: 5162720 (1992-11-01), Lambert
patent: 5162817 (1992-11-01), Hosoi et al.
patent: 5264777 (1993-11-01), Smead
patent: 5420493 (1995-05-01), Hargadon et al.
Matsuda Kouichi
Obitsu Toshiro
Ozawa Hidekiyo
Yamamoto Tetsuo
Yano Hidetoshi
Fujitsu Limited
Nappi Robert
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