Control of a series resonant converter

Details Control of a series resonant converter Control of a series resonant converter

1986-07-11

1987-03-03

Salce, Patrick R.

Electric power conversion systems

Current conversion

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

363 80, 323235, 323319, H02M 3315

Patent

active

046480170

ABSTRACT:
A series resonant converter is interposed between an unregulated voltage source and an output circuit. The converter employs a pair of power switches each, when on, completing a series resonant circuit from the source to a resonant tank circuit including the primary winding of a transformer coupled to the output circuit. The power switches are alternately turned on and off so that sinusoidal current pulses alternately flow in opposite directions in the primary winding at a frequency dependent on input and output conditions. The current flowing in the resonant circuit is monitored and the power switches are additionally controlled to prevent turn on of one switch and turn off of the other when current is still flowing in the resonant circuit.

REFERENCES:
patent: 4092708 (1978-05-01), Gerding et al.
patent: 4301398 (1981-11-01), Johnson
patent: 4317975 (1982-03-01), Mizukawa et al.
patent: 4342076 (1982-07-01), Rosswurm et al.
patent: 4417199 (1983-11-01), Jones
R. H. Baker, "High Frequency Power Conversion with FET-Controlled Resonant Charge Transfer", PCI, Apr., 1983, pp. 130-133.

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