Battery circuit for supplying power to an electronic device

Details Battery circuit for supplying power to an electronic device Battery circuit for supplying power to an electronic device

1996-08-29

1997-11-11

Tso, Edward

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 25, 320 56, H01M 1046

Patent

active

056868146

ABSTRACT:
A battery circuit for use in supplying power to an electronic device comprises a first battery source, a second battery source connected in parallel to the first battery source, a first auxiliary circuit for preventing the first battery source from being charged by the second battery source and for preventing a reverse voltage from being applied by the first battery source to the electronic device and a second auxiliary circuit for preventing the second battery source from being charged by the first battery source and for preventing a reverse voltage from being applied by the second battery source to the electronic device. The first auxiliary circuit includes a first MOSFET which has a first switching state and a second switching state and a first operational amplifier for controlling the switching state of the first MOSFET. The second auxiliary circuit is connected in series to the second battery source and includes a second MOSFET which has a first switching state and a second switching state and a second operational amplifier for controlling the switching state of the second MOSFET.

REFERENCES:
patent: 4754160 (1988-06-01), Ely
patent: 5172045 (1992-12-01), Takeyasu
patent: 5568038 (1996-10-01), Tatsumi

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