PFM and current controlled switching regulator

Details PFM and current controlled switching regulator PFM and current controlled switching regulator

2006-03-08

2008-08-26

Patel, Rajnikant B (Department: 2838)

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

C363S080000, C323S222000

Reexamination Certificate

active

07417879

ABSTRACT:
A circuit and method for controlling a switching regulator utilize a combination of variable off-time control (or frequency control) and variable peak current control to achieve high efficiency at a wide range of load conditions. A non-linear control circuit receives an error voltage and generates a first control signal for controlling a frequency control circuit and a second control signal for controlling a peak current control circuit. The frequency control circuit and the peak current control circuit operate in conjunction over the entire range of load conditions with the frequency control dominates at light load (or low power) conditions and the variable peak current control dominates at moderate to heavy load (or high power) conditions. The switching regulator transitions smoothly between frequency control and peak current control with continous loop gain throughout the transition region.

REFERENCES:
patent: 4608625 (1986-08-01), Josephson et al.
patent: 4683529 (1987-07-01), Bucher, II
patent: 5146398 (1992-09-01), Vila-Masot et al.
patent: 5481178 (1996-01-01), Wilcox et al.
patent: 6304067 (2001-10-01), Wrathall
patent: 6809560 (2004-10-01), Wrathall
patent: 6972974 (2005-12-01), Inn et al.

Affiliated with

Also associated with

Rating

PFM and current controlled switching regulator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with PFM and current controlled switching regulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and PFM and current controlled switching regulator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4014799