Step-down circuit, power supply circuit, and semiconductor...

Details Step-down circuit, power supply circuit, and semiconductor... Step-down circuit, power supply circuit, and semiconductor...

2006-08-29

2006-08-29

Sterrett, Jeffrey (Department: 2838)

Electric power conversion systems

Current conversion

With voltage division by storage type impedance

Reexamination Certificate

active

07099167

ABSTRACT:
A step-down circuit is provided that comprises a clock control circuit which provides a plurality of clock signals having a frequency determined based on a control signal; a charge pump circuit which reduces a first potential applied to a first terminal and then provides a second potential from a second terminal by switching the connection of a plurality of capacitors in sync with a plurality of the clock signals output from the clock control circuit; and a comparator which produces the control signal to be supplied to the clock control circuit by comparing the second potential to a reference potential.

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