3-300 MHz Wide-Range Switched-Mode

Power Conversion and Wireless Transmission

Abstract:

3-300 MHz switched-mode power amplifiers capable of wide operating ranges, including resistive load range, reactive load range, and/or a wide range of power levels, while maintaining high-power and high-efficiency operation are needed for wireless power transfer, plasma generation, and induction heating. Zero voltage switching (ZVS) is required for high-frequency operation to avoid high-frequency switching loss. There are some design trade-offs to consider in order to maintain ZVS while achieving wide-range, high-power, and high-efficiency operation. In this seminar, we will investigate three types of switched-mode power amplifiers and their corresponding applications, including a wide-range voltage-mode class D power amplifier, a 100 MHz symmetric current-mode class D wireless power transfer system, and a three-phase current-mode power amplifier, for ZVS conditions and corresponding wide-range, high-power, and high-frequency operation, aiming to overcome these trade-offs.

In general, the field of power conversion and wireless transmission in the 3-300 MHz range represents uncharted territory with the potential for significant opportunities and rewards, awaiting explorers and pioneers to venture forth and discover its potential fortunes.

Biography:

Xin Zan received a B.E. degree in electrical engineering and automation from Tsinghua University, Beijing, China, in 2016, and a Ph.D. degree from the University of Michigan, Ann Arbor, MI, USA, in 2022. He was a Postdoc Associate with the Massachusetts Institute of Technology. Currently, he is an assistant professor at the Department of Electrical and Computer Engineering at the University of Maryland, College Park. His research interests include 3-300 MHz Power Conversion and Wireless Transmission, and Pulse Power Electronics. 

Dr. Zan was the recipient of IEEE IAS Renewable and Sustainable Energy Conversion Systems Conference First Prize Paper Award in 2022, IEEE PELS Best ECCE Paper on Emerging Technology Award Oral Presentation in 2019, the Richard F. and Eleanor A. Towner Prize for Distinguished Academic Achievement from the University of Michigan in 2019, IEEE PELS ECCE Best Student Project Demonstration on Emerging Technology Second Place Award in 2018.