Switching power supply circuit

Details Switching power supply circuit Switching power supply circuit

2007-11-27

2007-11-27

Berhane, Adolf (Department: 2838)

Electric power conversion systems

Current conversion

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

C363S131000

Reexamination Certificate

active

11338280

ABSTRACT:
An abnormal operation in which a current flows through a switching device before the end of an off period of the switching device at medium load is eliminated by setting the coupling coefficient of an isolated converter transformer to about 0.7 or lower. A primary side parallel resonance frequency and a secondary side series resonance frequency are set so as to obtain favorable power conversion efficiency characteristics.

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