Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1998-01-23
1999-12-07
Nguyen, Matthew
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363131, H02M 3335
Patent
active
059994177
ABSTRACT:
A power converter nearly losslessly delivers energy and recovers energy from capacitors associated with controlled rectifiers in a secondary winding circuit, each controlled rectifier having a parallel uncontrolled rectifier. First and second primary switches in series with first and second primary windings, respectively, are turned on for a fixed duty cycle, each for approximately one half of the switching cycle. Switched transition times are short relative to the on-state and off-state times of the controlled rectifiers. The control inputs to the controlled rectifiers are cross-coupled from opposite secondary transformer windings.
REFERENCES:
patent: 3663941 (1972-05-01), Pasciutti
patent: 4788634 (1988-11-01), Schlecht et al.
patent: 5179512 (1993-01-01), Fisher et al.
patent: 5274543 (1993-12-01), Loftus, Jr.
patent: 5303138 (1994-04-01), Rozman
patent: 5528482 (1996-06-01), Rozman
patent: 5625541 (1997-04-01), Rozman
patent: 5726869 (1998-03-01), Yamashita et al.
patent: 5774350 (1998-06-01), Notaro et al.
patent: 5870299 (1999-02-01), Rozman
patent: 5872705 (1999-02-01), Loftus, Jr. et al.
Casey, Leo Francis, "Circuit Design For 1-10 MHZ DC-DC Conversion, " MIT Doctoral Thesis, Jan. 1989, pp. 1-216.
Ferencz, Andrew, "A 250 W High Density Point-of-Load Converter," MIT Master of Science Thesis, Sep. 1989, pp. 1-117.
Mohandes, Bijan, MOSFET Synchronous Rectifiers Achieve 90% Efficiency--Part I and Part II, PCIM, Jun. 1991, pp. 10-13 & 55-61.
Cobos, J.A., et al., "Resonant Reset Forward Topologies for Low Output Voltage On Board Converters," IEEE, 1994, pp. 703-708.
Tabisz, W.A., et al., "A MOSFET Resonant Synchronous Rectifier for High-Frequency DC/DC Converters," Proceedings of the Power Electronics Specialists Conference, San Antonio, TX, Jun. 10-15, 1990, pp. 769-779.
Wiegman, H.L.N., et al., "A Dual Active Bridge SMPS Using Synchronous Rectifiers," HFPC May 1990 Proceedings, pp. 336-346.
Shoyama, Masahito, et al., "Zero-Voltage-Switching Realized by Magnetizing Current of Transformer in Push-Pull Current-Fed DC-DC Converter," IEEE, 1993, pp. 178-184.
Shoyama, Masahito, et al., "Zero-Voltage-Switched Push-Pull DC-DC Converter," IEEE, 1991, pp. 223-239.
Xiao, Li, et al, "Soft Switched PWM DC/DC Converter with Synchronous Rectifiers," IEEE 1996, pp. 476-484.
Blanchard, Richard, et al., "The Design of a High Efficiency, Low Voltage Power Supply Using MOSFET Synchronous Rectification and Current Mode Control," IEEE, 1985, pp. 355-361.
Jitaru, Ionel Dan, et al, "High Efficiency DC-DC Converter," IEEE, 1994, pp. 638-644.
Harper, D.J., et al., "Controlled Synchronous Rectifier," HFPC May 1988 Proceedings, pp. 165-172.
Acker, Brian, et al., "Current-Controlled Synchronous Rectification," IEEE 1994, pp. 185-191.
Casey, Leo F., et al., "A High Frequency, Low Volume, Point-of-Load Power Supply for Distributed Power Systems," IEEE 1987, pp. 439-450.
Murakami, Naoki, et al., "A High-Efficiency 30-W Board Mounted Power Supply Module," IEEE 1991, pp. 122-127.
Schlecht, Martin F., "Research Results from the Study of A High Efficiency, Highly Manufacturable DC-DC Converter," unpublished, pp. 1-32.
Gachora, John Mburu, "Design of a Four-Phase Switchmode High Efficiency Power Supply," MIT Master of Engineering Thesis, 1994, pp. 1-66.
Blanchard R., et al., "MOSFETs Move In on Low Voltage Rectification," Official Proceedings of the Ninth International PCI '84 Conference, Oct. 29-31, 1984, pp. 213-222.
Garcia, O. et al., "Zero Voltage Switching in the PWM Half Bridge Topology With Complementary Control And Synchronous Rectification," Record of the Annual Power Electronics Specialist Conference, Pesc, Atlanta, Jun. 12-15, 1995, vol. 1, No. CONF. 26, Jun. 12, 1995, IEEE, pp. 286-291.
Fische, LLC
Nguyen Matthew
LandOfFree
High efficiency power converter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High efficiency power converter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High efficiency power converter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-831303