A Novel Quasi-Resonant Snubber-Assisted ZCS-PWM DC-DC Converter with High Frequency Link

Khairy Fathy; Soon-Kurl Kwon

A Novel Quasi-Resonant Snubber-Assisted ZCS-PWM DC-DC Converter with High Frequency Link

Khairy Fathy

Soon-Kurl Kwon

Vol. 7, No. 2, pp. 124-131, Apr. 2007

10.6113/JPE.2007.7.2.124

DC-DC converter

series capacitor compensated transformer leakage inductance

auxiliary lossless snubbing inductor

Switched capacitor

zero current soft switching

and auxiliary edge resonant snubber

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Abstract

In this paper, a novel type of auxiliary switched capacitor assisted edge resonant soft switching PWM resonant DC-DC converter with two simple auxiliary commutation lossless inductor snubbers is presented. The operation principle of this converter is described using the switching mode equivalent circuits. This newly developed multi resonant DC-DC converter can regulate its DC output AC power under a principle of constant frequency edge-resonant soft switching commutation by an asymmetrical PWM duty cycle control scheme. The high frequency power regulation and actual power characteristics of the proposed soft switching PWM resonant DC-DC converter are evaluated and discussed. The operating performances of the newly proposed soft switching inverter are represented based on simulation results from an applications point of view.

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Cite this article

[IEEE Style]

K. Fathy and S. Kwon, "A Novel Quasi-Resonant Snubber-Assisted ZCS-PWM DC-DC Converter with High Frequency Link," Journal of Power Electronics, vol. 7, no. 2, pp. 124-131, 2007. DOI: 10.6113/JPE.2007.7.2.124.

[ACM Style]

Khairy Fathy and Soon-Kurl Kwon. 2007. A Novel Quasi-Resonant Snubber-Assisted ZCS-PWM DC-DC Converter with High Frequency Link. Journal of Power Electronics, 7, 2, (2007), 124-131. DOI: 10.6113/JPE.2007.7.2.124.