A single-stage phase-shifted full-bridge AC/DC converter with variable frequency control
✍ Scribed by Huang-Jen Chiu; Yu-Kang Lo; Ting-Peng Lee; Ching-Chun Chuang; Shann-Chyi Mou
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 610 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0098-9886
- DOI
- 10.1002/cta.598
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✦ Synopsis
Abstract
This letter presents a single‐stage soft‐switched full‐bridge AC/DC converter for low‐voltage/high‐current output applications. A phase‐shifted method with a variable frequency control is used to regulate the DC bus voltage and the output voltage of the single‐stage AC/DC converter. The proposed circuit topology and control scheme exhibit superior performances (i.e. high power factor, high‐efficiency, and ring‐free features). Correspondingly, a laboratory prototype, 500 W 5V/100A AC/DC converter, is implemented to verify the feasibility of the proposed design. Copyright © 2009 John Wiley & Sons, Ltd.