Voltage boosting circuit and method

Details Voltage boosting circuit and method Voltage boosting circuit and method

2005-06-14

2005-06-14

Riley, Shawn (Department: 2838)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C307S110000

Reexamination Certificate

active

06906577

ABSTRACT:
A voltage boosting circuit, boosting power supply unit and methods thereof are provided. A boosting power supply unit includes a boosting circuit having a small number of externally-mounted capacitors, which generates stepped-up and stepped-down boosted voltages through charging and pumping under two-phase control, so that the simultaneous output of the stepped-up voltage and the stepped-down voltage, the output of only the stepped-up voltage, the output of only the stepped-down voltage, and the cut-off of the output of the stepped-up voltage and the stepped-down voltage can be controlled on the basis of the phase control signal generated from the enable signals of which the logic states are changed in accordance with an amount of load.

REFERENCES:
patent: 5606491 (1997-02-01), Ellis

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