High frequency switched mode resonant commutation power supply

Details High frequency switched mode resonant commutation power supply High frequency switched mode resonant commutation power supply

1989-10-10

1990-12-04

Wong, Peter S.

Electric power conversion systems

Current conversion

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

363 97, 363 56, H02M 3335

Patent

active

049758217

ABSTRACT:
A forward switched mode converter power supply of a resettable type, in which leakage inductance in the input circuit, the parallel inductance of the transformer and the parasitic capacitance of the switching means provides a resonant circuit for recirculating commutation energy, so that the voltage across the switching means is reduced essentially to zero at the beginning of each switching cycle to prevent loss of the commutation energy.

REFERENCES:
patent: 4007413 (1977-02-01), Fisher et al.
patent: 4253136 (1981-02-01), Nanko
patent: 4318164 (1982-03-01), Onodera et al.
patent: 4642750 (1987-02-01), Raets
patent: 4648016 (1987-03-01), Peruth et al.
patent: 4788634 (1988-11-01), Schlecht et al.

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