Abstract
This paper proposed a novel topology for stepup/down converter based on the concept of partial power processing, which improves efficiency as well as power density. The unified modulation strategy achieves the auto transition between two operating modes without requiring any additional control. The operating principle is analyzed in detail, from which it is found that diode reverse recovery of Si MOSFETs reduces the voltage regulation range in step-down operation mode. Therefore, SiC MOSFET is employed in the high voltage side to avoid duty cycle loss. The SPICE simulations based on the SiC and Si devices have been built, and the simulation results verify the effect of using SiC devices. A 400V prototype based on SiC MOSFET has been built. Measurement results confirm the high efficiency in overall voltage range, and the maximum efficiency exceeds 99%.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of IEEE Workshop on Wide Bandgap Power Devices and Applications |
| Publisher | IEEE |
| Publication date | 2021 |
| Pages | 264-269 |
| ISBN (Print) | 9781665418515 |
| DOIs | |
| Publication status | Published - 2021 |
| Event | IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia - Virtual event, Wuhan, China Duration: 25 Aug 2021 → 27 Aug 2021 https://wipda-asia2021.aconf.org/ |
Conference
| Conference | IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia |
|---|---|
| Location | Virtual event |
| Country/Territory | China |
| City | Wuhan |
| Period | 25/08/2021 → 27/08/2021 |
| Internet address |
Keywords
- Step-up/down voltage regulation
- Partial power processing
- Unified modulation strategy
- SiC devices
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Dive into the research topics of 'An Efficient Voltage Step-up/down Partial Power Converter (SUD-PPC) using Wide Bandgap devices'. Together they form a unique fingerprint.Prizes
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Best Presentation Award at WiPDA-Asia 2021
Andersen, M. A. E. (Recipient), 27 Aug 2021
Prize: Prizes, scholarships, distinctions