Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2006-03-28
2006-03-28
Patel, Rajnikant B. (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
C323S284000, C323S222000
Reexamination Certificate
active
07019502
ABSTRACT:
A multiphase synthetic ripple voltage generator for a multiphase DC-DC regulator including a master clock circuit that generates a master clock signal, sequence logic and a ripple regulator for each phase. The DC-DC regulator includes multiple switching circuits, each responsive to a corresponding PWM signal to switch input voltages via a phase node through an output inductor to develop an output voltage. The sequence logic sets each PWM signal in sequential order based on the master clock signal. Each ripple generator includes a transconductance amplifier, a ripple capacitor and a comparator. The transconductance amplifier has an input coupled to a corresponding output inductor and an output coupled to a corresponding ripple capacitor. The comparator has a first input coupled to the ripple capacitor, a second input receiving an error voltage, and an output coupled to the sequence logic for resetting a corresponding PWM signal.
REFERENCES:
patent: 4413224 (1983-11-01), Krupka et al.
patent: 4521726 (1985-06-01), Budnik
patent: 4658204 (1987-04-01), Goodwin
patent: 5399958 (1995-03-01), Iyoda
patent: 5705919 (1998-01-01), Wilcox
patent: 5731694 (1998-03-01), Wilcox et al.
patent: 5747977 (1998-05-01), Hwang
patent: 6147478 (2000-11-01), Skelton et al.
patent: 6307360 (2001-10-01), Kajiwara et al.
patent: 6433525 (2002-08-01), Muratov et al.
patent: 6456050 (2002-09-01), Agiman
patent: 6495995 (2002-12-01), Groom et al.
patent: 6583610 (2003-06-01), Groom et al.
patent: 3343883 (1984-06-01), None
patent: 42 06 478 (1993-09-01), None
patent: 0 650 250 (1995-04-01), None
patent: 0 883 051 (1998-12-01), None
patent: 1 073 187 (2001-01-01), None
patent: 2 610 149 (1988-07-01), None
Jochum Thomas A.
Li Xuening
Walters Michael M.
Intersil America's Inc.
Patel Rajnikant B.
Stanford Gary R.
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