Interleaved Flyback Converter with GaN Power Devices

Guan Shiun Wang, Tsorng Juu Liang, Jian Hao Lai

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

In this thesis, a high output current DC-DC converter with wide input voltage range based on GaN device is implemented. Generally, the volume of converter can be reduced and power density can be improved with higher switching frequency. However, the switching losses will be increased at the higher switching frequency conditions. Therefore, the characteristic of the wide band-gap device with fast switching is applied to reduce switching losses. The topology of an interleaved flyback converter with leakage inductance energy recycled is selected in this thesis. Two series capacitors are connected with input side and the voltage of each capacitor is half of input voltage. Besides, the energy stored in leakage inductance can be recycled to these two capacitors through the clamp diodes. Moreover, the system efficiency can be improved with the interleaved control method and the synchronous rectification technique. Finally, an interleaved flyback with leakage inductance energy recycled based on GaN device is implemented. The specifications of the input voltage range and output are 18V DC to 60 V DC and 5 V/30 A, respectively. The highest efficiency is 94.2% at the light load condition.

原文English
主出版物標題Proceedings - 2018 IEEE International Power Electronics and Application Conference and Exposition, PEAC 2018
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9781538660539
DOIs
出版狀態Published - 2018 十二月 26
事件2018 IEEE International Power Electronics and Application Conference and Exposition, PEAC 2018 - Shenzhen, China
持續時間: 2018 十一月 42018 十一月 7

出版系列

名字Proceedings - 2018 IEEE International Power Electronics and Application Conference and Exposition, PEAC 2018

Other

Other2018 IEEE International Power Electronics and Application Conference and Exposition, PEAC 2018
國家/地區China
城市Shenzhen
期間18-11-0418-11-07

All Science Journal Classification (ASJC) codes

  • 能源工程與電力技術
  • 電氣與電子工程

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