A novel ZCZVT forward converter with synchronous rectification

Sung Pei Yang; Jong Lick Lin; Shin Ju Chen

doi:10.1109/TPEL.2006.876879

A novel ZCZVT forward converter with synchronous rectification

Sung Pei Yang, Jong Lick Lin, Shin Ju Chen

Department of Engineering Science

Research output: Contribution to journal › Article › peer-review

34 Citations (Scopus)

Abstract

A novel zero-current-zero-voltage transition (ZCZVT) forward converter with synchronous rectification (SR) is presented in this paper. The proposed converter is operating at 300kHz and processes the features of both zero-voltage transition (ZVT) at turn on and zero-current transition (ZCT) at turn off for the main switch. The auxiliary switch also achieves zero-current switching (ZCS). The flux of transformer can be reset without tertiary winding. The steady-state analysis and design considerations are investigated in detail in this work. Moreover, a self-driven synchronous rectification is also added to the ZCZVT forward converter to reduce the conduction losses of the output rectifier. For 48-V input and 12-V 100-W output, a prototype of the proposed converter for 300-kHz switching is built to verify the theoretical analysis. Finally, the power losses are well estimated. The overall efficiency of the proposed converter is achieved at 89% at full load.

Original language	English
Pages (from-to)	912-922
Number of pages	11
Journal	IEEE Transactions on Power Electronics
Volume	21
Issue number	4
DOIs	https://doi.org/10.1109/TPEL.2006.876879
Publication status	Published - 2006 Jul

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

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10.1109/TPEL.2006.876879

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A novel ZCZVT forward converter with synchronous rectification

Abstract

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