李泽元教授 (Fred C. Lee)
美国工程院院士、中国工程院外籍院士、IEEE Fellow
弗尼吉亚理工大学
报告题目：PCB Based Magnetics Integration: Benefits and Limitations

报告摘要：In today’s market, most power electronics products are custom designed with significant nonrecurrent engineering and also subjected to labor-intensive manufacturing processes. The major road blocks are hinged on the ability to integrate large and bulky magnetic components in a form suitable for automation. Suffice it to say that the design practice for magnetic components has remained largely the same for the past five decades.
With recent advances in wide-band-gap (WBG) power semiconductor devices, we have witnessed significant increase in switching frequency while achieving higher efficiency and power density compared to the current practice using silicon counterparts. With significantly higher operating frequency, the integration of magnetic components with embedded windings in the PCB is feasible for wide range of applications. Design trade-offs, previously considered neither practical nor conceivable, can be realized, not only with significant gain in efficiency and power density, but also with drastic improvements of EMI/EMC and manufacturability.
The PCB based magnetics design practices and tradeoffs are quite different from the conventional practice. Certain benefits and limitations will be highlighted in this talk.

报告人简介：Dr. Lee is a University Distinguished Professor Emeritus at Virginia Tech. He is a member of the U.S. National Academy of Engineering, U.S. National Academy of Inventors, an academician of Taiwan’s Academia Sinica, and a foreign member of the Chinese Academy of Engineering, China.   Dr. Lee founded the Center for power electronics and led a program that encompasses research, technology development, educational outreach, industry collaboration, and technology transfer. To date, more than 230 companies worldwide have benefited from this industry partnership program.
Dr. Lee has supervised to completion 89 Ph.D. and 93 M.S. students. He holds over 100 US patents, and has published over 330 journal articles and more than 760 refereed technical papers. His research interests include high-frequency power conversion, magnetics and EMI, distributed power systems, renewable energy, power quality, high-density electronics packaging and integration, and modeling and control.
Dr. Lee is a recipient of the 2015 IEEE Medal in Power Engineering “for contributions to power electronics, especially high-frequency power conversion."