High-frequency switching circuits operable in a natural zero-vol

Details High-frequency switching circuits operable in a natural zero-vol High-frequency switching circuits operable in a natural zero-vol

1996-02-20

1997-01-14

Wong, Peter S.

Electric power conversion systems

Current conversion

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

363131, H02M 3335

Patent

active

055946291

ABSTRACT:
A dc-to-dc power converter, comprising a transformer, a single primary-side power switching device and a parallel combination of a diode and a capacitance, is controlled to operate in a "natural" zero-voltage switching mode such that the power switching device is switched with zero-voltage thereacross. Due to the simplicity of the circuit, i.e., very few components, and its high-frequency capability, it can be implemented using high-density packaging techniques. Such a converter is useful in ultra-high-density point-of-load dc-to-dc converters for distributed power systems.

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Zero voltage switching in high frequency power converters using pulse width modulation, Henze et al. Third Annual IEEE Applied Power Electronics Conference and Exposition, Feb. 1988 pp. 33-40.
"Magnetic and Electromagnetic Circuit Components Having Embedded Magnetic Material in a High Density Interconnect Structure," W A Roshen et al., Ser. No. 08/043,166, (GE Docket No. RD-22,506), filed Apr. 1, 1993.
"Design of the Zero-Voltage-Switching Quasi-Square-Wave Resonant Switch," Dragan Maksimovic, 1993 IEEE Power Electronics Specialists Conference, pp. 323-329.

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