Cellular switching mode power supply

Publisher:闻天明Release Time:2020-12-15Number of visits:10

Speaker:    Prof. Xinke Wu 
Time:        14:00-15:30, Dec. 18

Location:  SEM 104

Host:        Haoyu Wang 
Abstract: 
This talk discusses the methods aiming to break through the efficiency and power density restrictions in switching mode power supply fields. The loss models of switching devices in boost power factor correction (PFC) topology and soft-switching DCX topology with multi-level cellular structure are presented. The loss models reveal the inherent limitation of the losses related to the switching devices at MHz high frequency. According to the loss models, the quantitative design methodologies for optimizations of the efficiency and power density of the PFC topology and the isolated DCX topology based on low-voltage devices are obtained.

  
Bio: 
Dr. Xinke Wu is a full professor at Zhejiang University. He graduated from Harbin Institute of Technology with a master's degree in 2002 and a Ph.D. from Zhejiang University in 2006, and was a visiting scholar in the Center for Power Electronics Systems (CPES) of Virginia Tech from 2010 to 2012.

His research area is interested in high-frequency and high-density soft-switching power electronic converters, integration, and applications of the wide-bandgap power devices and power modules. He received the first prize of IEEE TPEL Best Paper award (2019) and tens excellent paper awards of IEEE International Conferences. He received the Delta Young Scholar Award of Delta Environmental and Education Foundation and the Young Scholar Award of China Power Supply Society. He servers as associate editor of IEEE Trans. Power Electron. and CPSS Trans. Power Electron. and Application.

 

SIST Seminar 202011