Power supply device using a resonance between a leakage componen

Details Power supply device using a resonance between a leakage componen Power supply device using a resonance between a leakage componen

1998-06-03

1999-11-02

Riley, Shawn

Electric power conversion systems

Current conversion

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

H02M 3335

Patent

active

059782340

ABSTRACT:
In a power supply device in which a switching means for controlling power supply to the input winding of a transformer is connected to a resonance capacitor connected to the input winding of the transformer so as to obtain a predetermined DC voltage at an output capacitor connected to the output winding of the transformer in accordance with switching of the switching means, the device has a leakage transformer as the transformer, and a control means for controlling switching of the switching means, and the control means is controlled by the output voltage from the second output winding of the transformer, has a means for producing resonance between the resonance capacitor and a leakage inductance between the input winding and first output winding of the leakage transformer upon switching of the switching means, and delays the rise timing of the terminal voltage of the switching means using that means to reduce losses upon switching of the switching means.

REFERENCES:
patent: 4958268 (1990-09-01), Nagagata et al.
patent: 5392206 (1995-02-01), Peterson et al.

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