An Efficient Voltage Step-up/down Partial Power Converter (SUD-PPC) using Wide Bandgap devices

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

12 Downloads (Pure)

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 languageEnglish
Title of host publicationProceedings of IEEE Workshop on Wide Bandgap Power Devices and Applications
Number of pages6
PublisherIEEE
Publication statusAccepted/In press - 2021
EventIEEE Workshop on Wide Bandgap Power Devices and Applications in Asia - Virtual event, Wuhan, China
Duration: 25 Aug 202127 Aug 2021
https://wipda-asia2021.aconf.org/

Conference

ConferenceIEEE Workshop on Wide Bandgap Power Devices and Applications in Asia
LocationVirtual event
Country/TerritoryChina
CityWuhan
Period25/08/202127/08/2021
Internet address

Keywords

  • Step-up/down voltage regulation
  • Partial power processing
  • Unified modulation strategy
  • SiC devices

Fingerprint

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.

Cite this