Zero-voltage resonant transition switching power converter

Details Zero-voltage resonant transition switching power converter Zero-voltage resonant transition switching power converter

1990-03-12

1991-10-15

Stephan, Steven L.

Electric power conversion systems

Current conversion

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

363 21, H02M 3335

Patent

active

050579860

ABSTRACT:
A single-ended DC-to-DC power converter which is operative at very high switching frequencies with zero-voltage resonant transition switching. A single magnetic element functions as both a storage inductor and a transformer. A charging capacitor is switched to induce a reversal current through the inductor for providing the zero-voltage switching function. Control to output characteristics are identical to those of conventional buck and buck-boost converters. The invention provides efficient, high-frequency operation and isolation of the output from the input power source with minimal component volume. The control system is adaptable to constant frequency pulse width modulation for voltage regulation.

REFERENCES:
patent: 4618919 (1986-10-01), Martin, Jr.
patent: 4857822 (1989-08-01), Tabisz et al.
patent: 4953068 (1990-08-01), Henze
patent: 4975821 (1990-12-01), Lethellier
"Zero-Voltage Switching in High Frequency Power Converters Using Pulse Width Modulation", APEL Record, Feb. 1-5, 1988, Henze et al., pp. 1-8.
"Development of a DC-to-DC Power Converter for Distributed Power Processing", Lo et al., APEC Conference Record, Mar. 13-19, 1989, pp. 1-10.

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