Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2011-08-02
2011-08-02
Berhane, Adolf (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
C323S288000, C363S044000
Reexamination Certificate
active
07990127
ABSTRACT:
A method and apparatus are disclosed for controlling a buck converter. In one aspect, an integrator is coupled to receive a current sense signal representative of a current in a switch of the buck converter and to integrate the current sense signal to produce a first input signal. A ramp generator is coupled to receive an oscillating signal having a same switching period as the switch, and to generate a piecewise linear ramp signal in response to the oscillating signal. The piecewise linear ramp signal has a delay segment of substantially zero slope followed by a plurality of segments having finite linear slopes within the switching period of the switch. A multiplier multiplies the piecewise linear ramp signal to produce a second input signal and a drive signal generator is coupled to receive a third input signal generated in response to the first and the second input signals to produce a drive signal to be coupled to control the switch to substantially regulate an output voltage of the buck converter.
REFERENCES:
patent: 4357572 (1982-11-01), Andersen et al.
patent: 4816982 (1989-03-01), Severinsky
patent: 5479090 (1995-12-01), Schultz
patent: 5804950 (1998-09-01), Hwang et al.
patent: 6178104 (2001-01-01), Choi
patent: 6191676 (2001-02-01), Gabor
patent: 6448744 (2002-09-01), Malik et al.
patent: 6900995 (2005-05-01), Muegge et al.
patent: 6977824 (2005-12-01), Yang et al.
patent: 7016204 (2006-03-01), Yang et al.
patent: 7054170 (2006-05-01), Yang et al.
patent: 7061225 (2006-06-01), Yang et al.
patent: 7061780 (2006-06-01), Yang et al.
patent: 7259972 (2007-08-01), Yang
patent: 7345464 (2008-03-01), Steele
patent: 7352595 (2008-04-01), Yang et al.
patent: 7391631 (2008-06-01), Shimada
patent: RE40656 (2009-03-01), Yang et al.
patent: 7714554 (2010-05-01), Jacques et al.
patent: 2008/0192514 (2008-08-01), Zhou et al.
patent: WO 2005/043732 (2005-05-01), None
Tang, W.; Lee, F.C.; Ridley, R.B.; Cohen, I.; “Charge control: modeling, analysis, and design,” Power Electronics, IEEE Transactions on, vol. 8, No. 4, pp. 396-403, Oct. 1993; Retrieved on Oct. 6, 2010. doi: 10.1109/63.261009 URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=261009&isnumber=6596.
U.S. Appl. No. 12/477,010, filed Jun. 2, 2009, Saint-Pierre.
U.S. Appl. No. 12/477,052, filed Jun. 2, 2009, Liu et al.
U.S. Appl. No. 12/477,058, filed Jun. 2, 2009, Kung et al.
Berhane Adolf
Blakely , Sokoloff, Taylor & Zafman LLP
Finch, III Fred E
Power Integrations, Inc.
LandOfFree
Method and apparatus for AC to DC power conversion with... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for AC to DC power conversion with..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for AC to DC power conversion with... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2646415