Abstract
A zero-voltage-switching (ZVS) asymmetrical full-bridge buck converter is proposed. In the proposed converter, a clamping capacitor is connected across the 2nd bridge instead of the DC-blocking capacitor in the conventional asymmetric full-bridge buck converter. The output stage consists of a full-bridge diode rectifier and a LC output filter. The ZVS operation of all power switches is achieved. Therefore, switching losses are significantly reduced and high-efficiency is obtained. Also, the drawbacks of the conventional asymmetric full-bridge buck converter such as the limited maximum duty cycle and narrow input voltage range are overcome. Steady-state analysis of the proposed converter is presented. A laboratory prototype of the proposed converter is developed, and its experimental results are presented for validation.
| Original language | English |
|---|---|
| Pages (from-to) | 5359-5364 |
| Number of pages | 6 |
| Journal | International Review of Electrical Engineering |
| Volume | 7 |
| Issue number | 5 |
| State | Published - 2012 |
Keywords
- Buck converter
- DC-DC converter
- Full-bridge buck converter
- Zero- voltage - switching