Circuit Properties of Zero-Voltage-Transition PWM Converters

Amir Ostadi; Xing Gao; Gerry Moschopoulos

Circuit Properties of Zero-Voltage-Transition PWM Converters

Amir Ostadi

Xing Gao

Gerry Moschopoulos

Vol. 8, No. 1, pp. 35-50, Jan. 2008

10.6113/JPE.2008.8.1.35

Zero-voltage transition

PWM converters/Switch-mode power supplies/High-frequency converters

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Abstract

A zero-voltage-transition (ZVT) pulse width modulated (PWM) converter is a PWM converter with a single main power switch that has an auxiliary circuit to help it turn on with zero-voltage switching (ZVS). There have been many ZVT-PWM converters proposed in the literature as they are the most popular type of ZVS-PWM converters. In this paper, the properties and characteristics of several types of ZVT-PWM converters are reviewed. A new type of ZVT-PWM converter is then introduced, and the operation of a sample converter of this type is explained and analyzed in detail. A procedure for the design of the converter is presented and demonstrated experimentally. The feasibility of the new converter is confirmed with results obtained from an experimental prototype. Conclusions on the performance of ZVT-PWM converters in general are made based on the efficiency results obtained from the experimental prototypes of various ZVT-PWM converters of different types.

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Cite this article

[IEEE Style]

A. Ostadi, X. Gao, G. Moschopoulos, "Circuit Properties of Zero-Voltage-Transition PWM Converters," Journal of Power Electronics, vol. 8, no. 1, pp. 35-50, 2008. DOI: 10.6113/JPE.2008.8.1.35.

[ACM Style]

Amir Ostadi, Xing Gao, and Gerry Moschopoulos. 2008. Circuit Properties of Zero-Voltage-Transition PWM Converters. Journal of Power Electronics, 8, 1, (2008), 35-50. DOI: 10.6113/JPE.2008.8.1.35.