Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1991-05-16
1995-01-17
Stephan, Steven L.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 35, 307 66, H02J 700
Patent
active
053828933
ABSTRACT:
An AC adapter that allows a lower power rating while still providing the necessary power to a load which is substantially constant over a varying voltage range and to charge a discharged Ni-Cad battery in a desired time. The AC adapter regulates its output power to a maximum level just greater than the maximum of the load rather than providing a controlled current until a predetermined fully charged voltage is attained. In this manner, the output voltage and current are allowed to vary inversely with respect to each other in order to maintain the desired power level, allowing the output current level to be reduced as the voltage level increases. A regulated voltage mode is also provided to keep the output voltage from rising above a predetermined maximum level should the Ni-Cad battery be disconnected. One preferred embodiment includes a regulated current mode wherein the current through the Ni-Cad battery is maintained at the desired trickle level once the battery is fully charged.
REFERENCES:
patent: 3599073 (1971-08-01), Wilson et al.
patent: 4006397 (1977-02-01), Catotti et al.
patent: 4075504 (1978-02-01), Gnaedinger
patent: 4276591 (1981-06-01), Quick
patent: 4433277 (1984-02-01), Carollo et al.
patent: 4503378 (1985-03-01), Jones et al.
patent: 4677363 (1987-06-01), Kopmann
patent: 4933825 (1990-06-01), Allington et al.
patent: 5021679 (1991-06-01), Fairbanks et al.
patent: 5055703 (1991-10-01), Scharnack
patent: 5087870 (1992-02-01), Salesky et al.
patent: 5136231 (1992-08-01), Faulk
Middlebrook, "Input Filter Considerations in Design and Application of Switching Regulators," Advances in Switched-Mode Power Conversion, 1976, pp. 91-107.
Compaq Computer Corporation, "SCH. Pwr Sply. Chopper," Released Sep./1988, pp. 1-2.
Compaq Computer Corporation, "SCH. Primary Contr. Chopper," Released Sep./1988, p. 1-2.
Berhane Adolf
Compaq Computer Corporation
Stephan Steven L.
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