Switching regulator

Details Switching regulator Switching regulator

2007-12-20

2009-06-16

Han, Jessica (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C323S283000

Reexamination Certificate

active

07548049

ABSTRACT:
A switching regulator is provided with: a comparator producing a comparison signal by comparing a feedback voltage commensurate with an output voltage with a predetermined reference voltage; an oscillator producing a clock signal at a predetermined frequency; a latch circuit producing a pulse width modulation signal with a desired duty factor based on the comparison signal and the clock signal; an output transistor for which switching control is performed based on the pulse width modulation signal, the output transistor having one end from which a switching voltage in the form of a rectangular wave is outputted; and a phase compensation circuit connected between an output terminal of the latch circuit and a feedback voltage input terminal of the comparator.

REFERENCES:
patent: 6465993 (2002-10-01), Clarkin et al.
patent: 6987410 (2006-01-01), Suda et al.
patent: 7230406 (2007-06-01), Huang et al.
patent: 2007/0296389 (2007-12-01), Chen et al.
patent: 2006-033958 (2006-02-01), None
patent: 2006-246626 (2006-09-01), None

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