Reduced-resonant-current zero-voltage-switched forward converter

Details Reduced-resonant-current zero-voltage-switched forward converter Reduced-resonant-current zero-voltage-switched forward converter

1992-10-19

1994-09-20

Sterrett, Jeffrey L.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 97, 363131, H02M 3335

Patent

active

053495144

ABSTRACT:
A resonant forward converter comprises a saturable inductor connected in series to a primary winding of a transformer and a switching device. The saturable inductor has a predetermined value of inductance in a light current region and a small value of inductance at a predetermined integral voltage due to magnetic saturation.

REFERENCES:
patent: 4399376 (1983-08-01), Onodera et al.
patent: 4417153 (1983-11-01), Onodera et al.
patent: 4435746 (1984-03-01), Barnett
patent: 4977493 (1990-12-01), Smith
patent: 5079689 (1992-01-01), Gidon et al.
patent: 5086381 (1992-02-01), Kameyama et al.
patent: 5126931 (1992-06-01), Jitaru
Hua et al., "An Improved Zero-Voltage-Switched PWM Converter Using a Saturable Inductor" 22nd Annual IEEE Power Electronics Specialists Conference, Apr. 1991
"Reduced-Resonant-Current Zero-Voltage-Switched Forward Converter with Unsaturated-Region Resonance of Saturable Inductor", by Ryoji Saito, Feb. 1992.

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