Abstract
LLC resonant converter is one of the most popular isolated dc/dc converters owning to its advantages of simple control, wide voltage gain regulation capability, and soft switching operation. Nevertheless, high efficiency and high power density are always the goals for LLC converters. To further increase the conversion efficiency, the synchronous rectification (SR) technology is adopted, where the uncontrolled diodes on the secondary side are replaced with SR MOSFETs. Due to the extreme low on-state resistance value for SR MOSFET, considerable secondary rectifier conduction loss reduction can be achieved; thus, the system efficiency is improved. Tremendous SR driving strategies for LLC converter have been proposed. However, comprehensive overview and insight comparisons among these different driving strategies are lacking.
| Original language | English |
|---|---|
| Article number | 9271916 |
| Pages (from-to) | 7264-7280 |
| Number of pages | 17 |
| Journal | IEEE Transactions on Power Electronics |
| Volume | 36 |
| Issue number | 6 |
| DOIs | |
| State | Published - Jun 2021 |
| Externally published | Yes |
Keywords
- LLC converter
- overview
- rectification
- synchronous
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