AC to DC boost switching power converters

Details AC to DC boost switching power converters AC to DC boost switching power converters

1995-06-02

1997-04-15

Wong, Peter S.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

323222, 323235, H02M 704

Patent

active

056216319

ABSTRACT:
AC-DC boost switching power conversion apparatus delivers power from a bipolar input voltage source to a load at a unipolar load voltage without including rectifiers directly in the path of the current which is delivered from the input source. By this means the converter exhibits lower power loss in semiconductor diodes and switches than is exhibited by prior art converters which interpose a rectifier between a bipolar source and a DC-DC boost converter. Power processing is performed by circuitry of the kind which includes an inductive element in series with the bipolar input source, shunt paths which include switching elements for recirculating a bipolar shunt current back toward the input source, a controller for turning the switching elements on and off during each of a series of converter operating cycles and rectification elements which are arranged to deliver a unipolar current to the load. The switching elements may be bipolar switches, which can block a voltage of either polarity when on, and conduct a current of either polarity when off. In zero-current switching embodiments the converter includes circuit elements, such as inductors and capacitors, which allow for turning the switching elements on and off at zero current. One class of AC-DC converters, called "fully integrated boost bridge converters," may be used to construct converter arrays of arbitrary size in which each individual converter within the array will share both in the power delivered to the load and in the current withdrawn from, and returned to, the bipolar input source.

REFERENCES:
patent: 4138715 (1979-02-01), Miller
patent: 4437146 (1984-03-01), Carpenter
patent: 4479175 (1984-10-01), Gille et al.
patent: 4542451 (1985-09-01), Hucker
patent: 4648020 (1987-03-01), Vinciarelli
patent: 4677366 (1987-06-01), Wilkinson et al.
patent: 4720667 (1988-01-01), Lee et al.
patent: 4720668 (1988-01-01), Lee et al.
patent: 4829232 (1989-05-01), Erickson, Jr.
patent: 4841220 (1989-06-01), Tabisz et al.
patent: 4894621 (1990-01-01), Koenig et al.
patent: 4949929 (1990-08-01), Kesselman et al.
patent: 5216352 (1993-06-01), Studtman et al.
patent: 5321348 (1994-06-01), Vinciarelli et al.
patent: 5343140 (1994-08-01), Gegner
Liu et al., "Resonant Switches--A Unified Approach to Improve Performances of Switching Converters", IEEE Catalog No. 84CH2073-55, 1984, pp. 344-350.
Enjeti et al., "A Two Quadrant High Power Quality Rectifier", Power Conversion Oct. 1990 Proceedings, pp. 86-91.
Unitrode Application Note U-129, "UC3907 Load Share IC Simplifies Parallel Power Supply Design, Unitrode Product and Applications Handbook", 1993-1994, pp. 9-296-9-305.
Vinciarelli, Patrizio, "High Efficiency Floating Gate Driver Circuit Using Leakage-Inductance Transformer", Ser. No. 07,805,474, filed Dec. 11, 1991, patent application.

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