Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1989-11-07
1993-04-20
Hickey, R. J.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
307150, 320 13, 429 7, 429 99, H02J 700, H01M 1046, H01M 1400, H07M 200
Patent
active
052046087
ABSTRACT:
A housing of a battery pack contains in addition to standard power cell elements a voltage converter. The voltage converter is interposed between the power cell elements and external output contacts of the housing. The voltage converter regulates the output voltage applied to the output contacts of the battery pack, such that the supply voltage of the battery pack remains at a predetermined value which is independent of the voltage supplied by the power cell elements to the voltage converter and does not vary over the discharge cycle of the power cell elements. Excess battery voltage available particularly during the initial portion of the discharge cycle of the power cell elements is efficiently converted to the predetermined output voltage value which reduces the overall current delivered by the power cells to extend the useful life of the battery pack between charges.
REFERENCES:
patent: 3967979 (1976-07-01), Kaye
patent: 4002892 (1977-01-01), Kielinski
patent: 4121115 (1978-10-01), de Mere
patent: 4514477 (1985-04-01), Kobayashi
patent: 4563627 (1986-01-01), Orban
patent: 4724189 (1988-02-01), Chase
Hickey R. J.
Norand Corporation
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