Power supply circuit with control switches to voltage...

Details Power supply circuit with control switches to voltage... Power supply circuit with control switches to voltage...

2007-06-06

2010-12-21

Tso, Edward (Department: 2858)

Electricity: battery or capacitor charging or discharging

Battery or cell charging

Pulsed

C320S128000, C363S049000, C363S059000, C323S271000

Reexamination Certificate

active

07855532

ABSTRACT:
A power supply circuit includes a first power supply configured to output a first voltage; a second power supply provided separately from the first power supply to output a second voltage; and a boosting circuit configured to use the first voltage as an input voltage to boost the input voltage toward a target voltage. The target voltage has a voltage width, and when an output voltage of the boosting circuit exceeds an upper limit of the target voltage, the input voltage is switched the first voltage of the first power supply to the second voltage of the second power supply.

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