Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1998-09-15
2000-06-27
Tso, Edward H.
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363 17, 363 20, H02M 3335
Patent
active
060814322
ABSTRACT:
A converter comprises a first switch (102) for connecting an input DC voltage to a primary winding (103) of a transformer (104), a second switch (105) for connecting a reset voltage to the transformer, and first and second synchronous rectifiers (109, 110) within a filter circuit (108) for receiving an output voltage waveform from a secondary winding (107) of the transformer and generating therefrom a DC output voltage. The synchronous rectifiers are controlled by the secondary winding. A first one of the synchronous rectifiers (109) couples the secondary winding to an output terminal of the power supply to provide output power during part of the switching cycle. The second synchronous rectifier (110) serves as a "flywheel" for providing load current during a second part of the switching cycle when the first synchronous rectifier is off. The timing of the first and second switches is arranged to prevent simultaneous conduction of the synchronous rectifiers.
REFERENCES:
patent: Re36098 (1999-02-01), Vinciarelli
patent: 4441146 (1984-04-01), Vinciarelli
patent: 4716514 (1987-12-01), Patel
patent: 4788634 (1988-11-01), Schlecht et al.
patent: 4857822 (1989-08-01), Tabisz et al.
patent: 4870555 (1989-09-01), White
patent: 4903189 (1990-02-01), Ngo et al.
patent: 5027264 (1991-06-01), DeDoncker et al.
patent: 5066900 (1991-11-01), Bassett
patent: 5099406 (1992-03-01), Bassett
patent: 5126931 (1992-06-01), Jitaru
patent: 5126938 (1992-06-01), Oda
patent: 5291382 (1994-03-01), Cohen
patent: 5303138 (1994-04-01), Rozman
patent: 5304875 (1994-04-01), Smith
patent: 5430633 (1995-07-01), Smith
patent: 5434768 (1995-07-01), Jitaru et al.
patent: 5528482 (1996-06-01), Rozman
patent: 5708571 (1998-01-01), Shinada
patent: 5742491 (1998-04-01), Bowman et al.
Alexander et al., "MOSFET's Move in On Low Voltage Rectification", Applications Handbook, Siliconix Technology Article, Siliconix Inc., pp. 569-580, 1984; No Month.
Acker, et al., "Current-Controlled Synchronous Rectification", Ninth Annual Applied Power Electronics Conference and Exposition, vol. 1, pp. 185-191, Feb. 13-17, 1994.
Jitaru, et al., "High Efficiency DC-DC Converter", IEEE, Apec '94, ninth Annual Applied Power Electronics Conference and Exposition, vol. 2, pp. 638-644, Feb. 13-17, 1994.
Tarter, "Principles of Solid-State Power Conversion", pp. 544-547, 1985, No Month.
Jitaru, "Constant Frequency, Forward Converter With Resonant Transition", High Frequency Power Conversion 1991 Conference, Proceedings 1, pp. 282-292, Jun. 1991.
Murakami, et al., "A Simple and Efficient Synchronous Rectifier for Forward DC-DC Converters", Apec '93, Eighth Annual Applied Power Electronics Conference and Exposition, pp. 463-468, Mar. 7-11, 1993.
Kagan, et al., "Improving Power Supply Efficiency With MOSFET Synchronous Rectifiers", Proceeding of Powercon 9, Ninth International Solid-State Power Electronics Conference, pp. 1-5, Jul. 13-15, 1982.
Tabisz, et al., "A MOSFET Resonant Synchronous Rectifier For High Frequency DC/DC Converters", PESC '90 Record vol. II, 21 Annual IEEE Power Electronics Specialist Conference, pp. 769-779, 1990, No Month.
Carsten, et al., "Design Tricks And Tribulations at High Conversion Frequencies", HFPC Apr. 1987 Proceedings, pp. 139-152.
Blanc, "Practical Application Of MOSFET Synchronous Rectifiers", Intelec '91, pp. 495-501, (Nov. 1991).
Carsten, "High Power SMPS Require Intrinsic Reliability", PCI '81 Proceedings Conference, Sep. 14-17.
Duigan Joseph
Keane Frank
Rinne Karl
Artesyn Technologies, Inc.
Patel Rajnikant B.
Tso Edward H.
LandOfFree
Active reset forward converter employing synchronous rectifiers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Active reset forward converter employing synchronous rectifiers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Active reset forward converter employing synchronous rectifiers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1789487