Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1994-06-08
1995-10-17
Kincaid, Kristine L.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
H02J 700
Patent
active
054593891
ABSTRACT:
A dual-charging system for a portable electric appliance such as a video camera comprises a rechargeable battery pack having a built-in charge circuit and a separate charger unit. The battery pack is capable of selectively taking a first charging operation with the use of the built-in charge circuit and a second charging operation with the use of a charge circuit of the charger unit. The charge circuit of the charger unit is designed such that a charging rate of the battery pack by the second charging operation is faster than that by the first charging operation. Therefore, when a rapid charging of the battery pack is desired, it is preferred to select the second charging operation. On the other hand, when the electric appliance is used, for example, during a journey, it is preferred to select the first charging operation because the charger unit is inconvenient to carry during a journey.
REFERENCES:
patent: 4922178 (1990-05-01), Matuszewski et al.
patent: 5396162 (1995-03-01), Brilmyer
Fujiwara Mitsuru
Isaka Atsushi
Kincaid Kristine L.
Matsushita Electric & Works Ltd.
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