PFM-PWM DC-DC converter providing DC offset correction to...

Details PFM-PWM DC-DC converter providing DC offset correction to... PFM-PWM DC-DC converter providing DC offset correction to...

2008-06-03

2008-06-03

Nguyen, Matthew V. (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C323S282000, C361S018000

Reexamination Certificate

active

07382114

ABSTRACT:
To prevent a voltage glitch in the regulated DC output voltage of a PWM/PFM DC-DC converter when switching between PFM and PMW modes, the error amplifier of the converter's PWM regulation path is provided with a DC voltage offset correction mechanism. This mechanism “zeros-out” DC voltage offsets that may be present in the voltage regulation path, thereby enabling the error amplifier to accurately regulate the converter's output voltage. When the converter transitions between PFM and PWM modes, the DC offset correction mechanism establishes initial conditions of the error amplifier that effectively ensure that the converter's regulated output voltage at the beginning of a new “switched-to” PWM mode cycle is DC offset-free.

REFERENCES:
patent: 5548206 (1996-08-01), Soo
patent: 6314007 (2001-11-01), Johnson et al.
patent: 6914418 (2005-07-01), Sung
patent: 7088599 (2006-08-01), Muska et al.
patent: 2007/0085519 (2007-04-01), Xu

Affiliated with

Also associated with

Rating

PFM-PWM DC-DC converter providing DC offset correction to... 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-PWM DC-DC converter providing DC offset correction to..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and PFM-PWM DC-DC converter providing DC offset correction to... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2802295