A New PWM DC/DC Converter with Isolated Dual Output Using Single Power Stage

Dong-Yun Lee; Dong-Seok Hyun; Ick Choy

A New PWM DC/DC Converter with Isolated Dual Output Using Single Power Stage

Dong-Yun Lee

Dong-Seok Hyun

Ick Choy

Vol. 2, No. 4, pp. 312-324, Oct. 2002

10.6113/JPE.2001.02.4.312

Dual output power

Single power stage

Single secondary winding

Zero-Voltage-Transition (ZVT)

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Abstract

This paper presents a new PWM DC/DC converter with dual output power using single power stage, which has the isolation characteristics between each dual output. The proposed converter topology consists of two switches (SB and SF) and only single secondary winding. Therefore, the proposed converter has better advantages of not only low cost and small size but also high power density because of using minimum components and devices compared with conventional methods which use multi winding transformers or several converters. The operating principle of the proposed converter topology, which includes the conventional auxiliary ZVT (Zero-Voltage-Transition) circuit to implement soft switching of the main switch, is illustrated in detail and the validity of the proposed converter is verified through several simulated and experimental results.

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Cite this article

[IEEE Style]

D. Lee, D. Hyun, I. Choy, "A New PWM DC/DC Converter with Isolated Dual Output Using Single Power Stage," Journal of Power Electronics, vol. 2, no. 4, pp. 312-324, 2002. DOI: 10.6113/JPE.2001.02.4.312.

[ACM Style]

Dong-Yun Lee, Dong-Seok Hyun, and Ick Choy. 2002. A New PWM DC/DC Converter with Isolated Dual Output Using Single Power Stage. Journal of Power Electronics, 2, 4, (2002), 312-324. DOI: 10.6113/JPE.2001.02.4.312.