TECHNICAL CONTRIBUTIONS by K. Kit Sum (as of July
2001)
34. Valley-Fill Power Factor Correction Circuit, U.S. Pat. No. 6,141,230,
October 31, 2000.
33. Charging Time Calculation of Class-D LLC Resonant Converter, co-suthored
with P. Greenland, PCIM '99, November 7-11, 1999, Chicago, Illinois.
32. How to Design a Sophisticated 200 Watt to 600 Watt Brick DC-to-DC
Power Converter, co-authored with J. Lau, presented at PCI M '99 Europe,
June 22-24, 1999, Nürnberg, Germany.
31. A Capacitor-Fed Voltage-Step-Down, Single-Phase, Non-Isolated Rectifier,
co-authored with N. O. Sokal, D. C. Hamill, presented at Applied Power
Electronics Conference, The Disneyland Hotel, Anaheim, California February
15 to 19, 1998.
30. Improved Valley-Fill Passive Current Shaper, presented at PowerSystems
World '97, Baltimore, Maryland, Sept. 1997.
29. Flat Transformers for Low Voltage, High Current,High Frequency Power
Converters, co-authored with D. Trevor Holmes, PowerSystems World '96,
Las Vegas, Nevada, September1996.
28. Flat Transformer Power Converter for Low Voltage, High Current Applications,
co-authored with James L. Lau, PowerSystems World '96, Las Vegas, Nevada,
September 1996.
27. The Matrix Transformer - A New Way to Use Ferrites, Interference
Technology Engineer' Master 1996
26. The Self-Oscillating Parallel Resonant Inverter as an Electronic
Fluorescent Lamp Ballast, co-authored with U. Mader, The Second International
Emergency Lighting and Electronic Ballast Design and Control Conference,
High Frequency Power Conversion Conference, San Jose, California, May
1995.
25. Analysis of the Flyback Converter Operating in Current-Mode Pulse-Frequency
Modulation, co-authored with U. Mader, High Frequency Power Conversion
Conference, San Jose, California, April 1994.
24. A Novel Control Method for an Off-Line PFC-PWM Combo Controller,
co-authored with J. Hwang, High Frequency Power Conversion Conference,
San Jose, California, April 1994.
23. ADVANCES IN HIGH POWER FACTOR RECTIFICATION, ed., book completed
for Intertec Communications, Inc., 2472 Eastman Avenue, Bldg. 33-34,
Ventura, California 93003-5774.
22. Design and Application of Matrix Transformers, paper presented at
the High Frequency Power Conversion Conference, Santa Clara, California,
May 1990.
21. Constant Frequency Isolated Flyback Power Converter Design, paper
published in the European issue of the Powerconversion and Intelligent
Motion, March 1990.
20. A Users' Guide to Understanding Power Factor, Invited Paper presented
at the Electric Power Research Institute Power Quality Conference, San
Francisco, California, March 1990.
19. Power Electronics Research In Universities of the United States,
Invited Paper, presented at the Power Electronics Conference, Long Beach,
California, February 1990.
18. Power Factor and Its Effect on Power Quality, presented at the PCIM/Power
Quality Conference, Hotel Queen Mary, Long Beach, California, October
16-19, 1989.
17. Design of Constant Frequency Isolated Flyback Power Converter, co-authored
with B. Sudholt and C. W. T. McLyman, paper presented at the PCIM/Power
Quality Conference, Hotel Queen Mary, Long Beach, California, October,
1989.
16. Design and Application of Matrix Transformers and Inductors, Tutorial
Seminar co-presented with E. Herbert at the High Frequency Power Conversion
Conference, Registry Resort Hotel, Naples, Florida, May 1989.
15. Power Electronics Research In Universities of the United States,
Invited Paper, presented at the Power Electronics Conference, Convention
Center, Santa Clara, California, February 9, 1989.
14. A High Density Power Converter Utilizing a Novel Matrix Transformer,
co-authored with E. Herbert and S. Cebry, presented at the SATECH 88
Conference, Dearborn, Michigan, Oct., 1988. BEST PAPER Award.
13. Novel Low Profile Matrix Transformers for High Density Power Conversion,
co-authored with E. Herbert, paper published in Powerconversion and
Intelligent Motion, September 1988.
12. Trends in High Frequency Power Conversion, co-authored with B. Carsten,
presented at the High Frequency Power Conversion Conference, San Diego,
May 1988.
11. RECENT DEVELOPMENTS IN RESONANT POWER CONVERSION, ed., book published
by Intertec Communications, Inc., 2472 Eastman Avenue, Bldg. 33-34,
Ventura, California 93003-5774, May 1988.
10. Voltage References, paper published in Powerconversion and Intelligent
Motion, February 1988.
9. Let's Improve Linear Regulator ICs, Guest Editorial, Powerconversion
and Intelligent Motion, January 1988.
8. Advances in Power Sources, Invited Paper, published in Powerconversion
and Intelligent Motion, May 1987.
7. On the Design of Constant Frequency Discontinuous Conduction Power
Converters, paper presented at the Power Electronics Design Conference,
San Jose, California, October 1986.
6. Analysis of Switch Mode Power Converter Using HP-15C Calculator,
co-authored with K. Kazem, paper published in Powerconversion and Intelligent
Motion, March 1986.
5. Analysis of Optimum Topology Converter Using HP-41 Calculator, co-authored
with B. Erisman, paper published in Powerconversion and Intelligent
Motion, November 1985.
4. SWITCH MODE POWER CONVERSION - Basic Theory and Design, book published
by Marcel Dekker, Inc., 270 Madison Avenue, New York, N.Y. 10016, October
1984.
3 Wideband Tunnel Diode Frequency Doubler, Proc. IEEE, November 1969.
2. Decoding a Second Harmonic Telemetry System, Canadian Electronic
Engineering, October 1968.
1. Matrix Analysis, Letter, Electronic Engineering, July 1965.
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