专用集成电路与系统国家重点实验室
讲座信息

题 目:Enabling High-Performance High-Voltage Power Conversion Integrated Circuits
报告人:Professor Hoi Lee(University of Texas at Dallas)
时 间:2016年6月14日上午10:00-11:30
地 点:张江校区微电子楼389室

Abstract
Nowadays, high-voltage power conversion integrated circuits have found wide applications in automotive systems, industrial and telecom systems, and renewable energy systems. Innovation in the high-voltage power converter design through miniaturization is important as it can lead to significant system cost reduction. However, state-of-the-art high-voltage power converters typically require the use of large-value bulky passive components due to the limitation of low-frequency hard-switching operation. In this talk, we will first examine different power losses of state-of-the-art high-voltage power converters and explore high-frequency zero-voltage switching technique for improving the converter power efficiency and reducing required values of passive components. We will then discuss both closed-loop automatic dead-time control and high-speed level shifting technique in high-voltage on-chip gate drivers to enable high-frequency reliable zero-voltage switching in high-voltage power converters. With above techniques, the designs of a high-voltage DC-DC based dimmable LED driver with a CMOS power train and an isolated DC-DC converter with eGaN power FETs will finally be presented as design examples.

Biography
Dr. Hoi Lee received the Ph.D. degree in Electrical and Electronic Engineering at the Hong Kong University of Science and Technology in Aug. 2004. In Jan. 2005, he joined the Department of Electrical Engineering, University of Texas at Dallas, Richardson, TX, where he is currently a Full Professor. His research interests include power management integrated circuits; soft-switching techniques, power converter topologies and control methodologies; wireless power and energy harvesting technologies; and low-power analog circuits.

Dr. Lee is an Associate Editor of the IEEE Transactions on Circuits and Systems-I. He is also a technical program committee member of the IEEE International Solid-State Circuits Conference (ISSCC) and the Chair of Power Management Technical Committee in the IEEE Custom Integrated Circuits Conference (CICC). He was an Associate Editor of IEEE Transactions on Circuits and Systems-II from 2007 to 2009 and has served again from 2014 to 2015. Dr. Lee is a senior member of IEEE. He received 2011 National Science Foundation CAREER Award and the Best Student Paper Award in the 2002 IEEE Custom Integrated Circuits Conference. He is also a co-recipient of the Best in Session Award twice in the 2013 and 2015 Annual SRC TECHCON conference.

联系人:周电
 
 
 
 

 

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