Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Patent
1993-11-24
1995-12-26
Wong, Peter S.
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
323285, 323288, 323351, G05F 156
Patent
active
054790905
ABSTRACT:
A DC to DC, fixed frequency, Buck family power converter having a first feedback control loop for regulating output current or output voltage depending on the operational mode selected, a second feedback control loop for current mode control and a third feedback control loop for providing improved dynamic response for all conditions of line and load. The third feedback control loop senses the output voltage and generates a variable ramp signal having a slope (M) which is proportional to the converter output voltage. By maintaining as a constant (K) a ratio of the variable ramp slope (M) to the falling slope (M.sub.2) of a voltage representation of the inductor current in an LC network of the Buck regulator or K=M/M.sub.2, improved dynamic operation of the power converter results for a plurality of output voltages particularly improving output ripple rejection and minimizing effects of injected noise in the current mode control loop.
REFERENCES:
patent: 3781653 (1973-12-01), Marini
patent: 3913002 (1975-10-01), Steigerwald et al.
patent: 4146832 (1979-03-01), McConnell
patent: 4278930 (1981-07-01), Rogers
patent: 4631470 (1986-12-01), Bingley
patent: 4862057 (1989-08-01), Contartese et al.
patent: 5013998 (1991-05-01), Varga et al.
patent: 5122728 (1992-06-01), Ashley
patent: 5192906 (1993-03-01), Nathan
patent: 5253155 (1993-10-01), Yamamoto
patent: 5302889 (1994-04-01), Marsh
"Synthesis of Zero-Admittance Converter," N. A. Losic, L. D. Varga and Z. D. Popovic, Power Conversion, October 1993 Proceedings, pp. 330-339.
"A New Integrated Circuit for Current-Mode Control," Application Note, Unitrode Corporation, Lexington, Mass., U-93, pp. 210-218.
"Modelling and Analysis of Switching DC-to-DC Converters in Constant-Frequency Current-Programmed Mode," Shi-Ping Hsu, A. Brown, L. Rensink and R. D. Middlebrook, IEEE 1979, pp. 284-301.
"Current Mode control for High Frequency Switchmode," B. Carston, Oltronics Canada Ltd., PCIM Apr. 1986, pp. 61-65.
"State Space Analysis of Buck Regulated DC-DC Converters for Inductive Focusing Coils," C. P. Schultz, Power Conversion, Oct. 1989 Proceedings, pp. 502-516.
Mofford Donald F.
Raytheon Company
Riley Shawn
Wong Peter S.
LandOfFree
Power converter having optimal dynamic operation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power converter having optimal dynamic operation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power converter having optimal dynamic operation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1371176