Abstract
A zero-voltage-switching (ZVS) synchronous buck converter with improved light load efficiency and ripple-free current is proposed in this paper. An auxiliary circuit is added to a conventional buck converter. The auxiliary circuit provides a ripple-free current and ZVS feature. Due to the ZVS feature, the switching loss is significantly reduced. However, the conduction loss due to the auxiliary circuit increases. Especially at light loads, the conduction loss is much larger than the switching loss. Therefore, by disabling the synchronous switch at light loads, the circulating current in the auxiliary circuit is reduced and the efficiency at light loads is improved. The operation principle and steady-state analysis of the proposed converter are provided. A prototype of the proposed converter is developed, and its experimental results are presented for validation.
| Original language | English |
|---|---|
| Title of host publication | Advances in Multimedia, Software Engineering and Computing Vol.1 |
| Subtitle of host publication | Proceedings of the 2011 MSEC International Conference on Multimedia, Software Engineering and Computing, November 26-27, Wuhan, China |
| Editors | David Jin, Sally Lin |
| Pages | 93-96 |
| Number of pages | 4 |
| DOIs | |
| State | Published - 2011 |
Publication series
| Name | Advances in Intelligent and Soft Computing |
|---|---|
| Volume | 128 |
| ISSN (Print) | 1867-5662 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Buck converter
- Ripple-free
- Synchronous buck converter
- Zero-voltage-switching
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