Power factor correction circuit and method therefor

Details Power factor correction circuit and method therefor Power factor correction circuit and method therefor

2008-07-15

2008-07-15

Riley, Shawn (Department: 2838)

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

C363S021070, C363S021100, C323S207000

Reexamination Certificate

active

11479198

ABSTRACT:
In one embodiment, a power factor correction circuit is configured to use a stored value of a feedback signal to assist in regulating the value of an output voltage and to bypass the sample and hold circuit if the output voltage increase to an upper limit or decreases to a lower limit.

REFERENCES:
patent: 5006975 (1991-04-01), Neufeld
patent: 5134355 (1992-07-01), Hastings
patent: 5359281 (1994-10-01), Barrow et al.
patent: 5502370 (1996-03-01), Hall et al.
patent: 6198638 (2001-03-01), Lee
patent: 6535400 (2003-03-01), Bridge
patent: 6756771 (2004-06-01), Ball et al.
“NCP165X High-efficiency Single Stage Power Factor Correction with Ultra Fast Transient Response”, On Semiconductor Engineering Data Sheet, Sep. 19, 2005, 8 pages.

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