Converter with a high power factor using a DC center point volta

Details Converter with a high power factor using a DC center point volta Converter with a high power factor using a DC center point volta

1999-04-12

2000-10-24

Wong, Peter S.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363143, 323282, 323299, H02M 542, H02M 704

Patent

active

061377007

ABSTRACT:
Switching control is remarkably simplified and a DC voltage is boosted, and then, an input power factor is sufficiently improved and harmonics are reduced by connecting a full-wave rectifier circuit to an AC power source through a reactor, and connecting a smoothing capacitor and boosting capacitors, which are connected in series with each other, in parallel between the output terminals of the circuit. In addition, a switching device is connected between the input terminal of the circuit and the connecting point between the boosting capacitors, and a control device is provided to control the switching device so that the switching device can be switched at every half cycle of the power source voltage.

REFERENCES:
patent: 4268899 (1981-05-01), Rokas
patent: 4837672 (1989-06-01), Donze
patent: 4937731 (1990-06-01), Konopka
patent: 5088019 (1992-02-01), Williams et al.
patent: 5162984 (1992-11-01), Castagnet et al.
patent: 5287263 (1994-02-01), Shilo
patent: 5572415 (1996-11-01), Mohan
patent: 5661348 (1997-08-01), Brown
Article entitled Passive Power Factor Correction for DC Power Supplies; IBM Technical Disclosure Bulletin, vol. 30, No. 4, dated Sep. 1987; and.
Article entitled A New Single Phase AC to DC Harmonic Reduction Converter Based on the Voltage-Doubler Circuit, by H.O. Aintablian, and H. W. Hill; dated Sep. 5, 1994.
translated copy of PCT Request.
copy of PCT/IB/304.
copy of PCT/IB/338.

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