Active clamped ZVS forward converter with soft-switched synchronous rectifier for high efficiency, low output voltage applications

Date

2003-03-01

Author

Acik, A
Cadirci, I

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The analysis, design, and implementation of an active clamped ZVS forward converter equipped with a soft-switched synchronous rectifier (ACFC-SR), proposed for high-efficiency low output voltage DC-DC converter applications, is presented. The converter efficiency is maximised due to soft switching of the main, active clamp, synchronous rectifier, and freewheeling MOSFET switches. The operating principles of the ACFC-SR are analysed in detail, and the converter performance is compared with that of alternative forward converter schemes employed in low output voltage DC-DC converters, in view of their power conversion efficiency. Experimental results are presented for a 50 W ACFC-SR converter with a DC input voltage of 48 V, an output voltage of 5 V, and operating at a switching frequency of 120 kHz. In general, good agreement is observed between the theoretical and experimental results.

Subject Keywords

Electrical and Electronic Engineering

URI

https://hdl.handle.net/11511/65351

Journal

IEE PROCEEDINGS-ELECTRIC POWER APPLICATIONS

DOI

https://doi.org/10.1049/ip-epa:20030151

Collections

Department of Electrical and Electronics Engineering, Article

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Citation Formats

A. Acik and I. Cadirci, “Active clamped ZVS forward converter with soft-switched synchronous rectifier for high efficiency, low output voltage applications,” IEE PROCEEDINGS-ELECTRIC POWER APPLICATIONS, pp. 165–174, 2003, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/65351.