Unity power factor converter for high quality power supply with

Details Unity power factor converter for high quality power supply with Unity power factor converter for high quality power supply with

1996-11-12

1998-01-27

Sterrett, Jeffrey L.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

363 20, H02M 7537

Patent

active

057127808

ABSTRACT:
The present invention provides a high quality power supply, and more particularly to an improved single-ended converter having the high power factor close to unity. In accordance with the present invention, the power supply comprises a power source, a low-pass filter, a rectifier including an inductor, a transformer primary coil, a transformer secondary coil, a ripple energy storing capacitor, a switching controller and an inductance element wound round a core where said transformer primary and secondary coils are wound. The inductance element being coupled to said rectifying means so that compensates a voltage applied to said inductor in said rectifying means with a voltage applied to said transformer primary coil.

REFERENCES:
patent: 4257087 (1981-03-01), Cuk
patent: 4486823 (1984-12-01), Palm
patent: 4675796 (1987-06-01), Gautherin et al.
patent: 5001620 (1991-03-01), Smith
patent: 5224025 (1993-06-01), Divan et al.
patent: 5442536 (1995-08-01), Zimmermann
patent: 5508904 (1996-04-01), Hara
patent: 5600546 (1997-02-01), Ho et al.

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