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Powering the Future: Developments in High Frequency Power Electronics (2016/8/25 九州大学@博多)

2016/08/31

【科目種別】電気エネルギー講座Ⅱ(英語科目)

■講 師: David J. Perreault
■ご所属: Massachusetts Institute of Technology(米国)
      教授

■演 題: Powering the Future: Developments in High Frequency Power Electronics

■日 時: 平成 28年 8月 25 日(木)15:00~16:30
■場 所: JR博多シティ会議室 9階 No.2

■主 催: 九州大学大学院システム情報科学研究院 電気システム工学部門
■共 催: 九州パワーアカデミー
■協 賛: 電気学会 九州支部
      IEEE Fukuoka Section

■概要
  This talk describes ongoing research that seeks to address the twin challenges of miniaturization and performance of power electronics. New system architectures and circuit designs are introduced that enable dramatic increases in switching frequencies (e.g., into the 3-300 MHz range). Higher frequencies are desirable because they reduce energy storage requirements, but necessitate circuit designs that either compensate for or utilize device parasitics. Furthermore, design approaches for integrated power devices and magnetics are introduced that scale well to small sizes and high frequencies and enable improved integration. Experimental results from power converters operating at frequencies up to 75 MHz are presented to illustrate these emerging technologies.

■Speaker Biography:
  David Perreault received the B.S. degree from Boston University and the S.M. and Ph.D. degrees from the Massachusetts Institute of Technology, all in Electrical Engineering. He is presently Professor and Associate Head of the Department of Electrical Engineering and Computer Science at the Massachusetts Institute of Technology. His research interests include design, manufacturing, and control techniques for power electronic systems and components, and in their use in a wide range of applications. Dr. Perreault is a Fellow of the IEEE. He received the Richard M. Bass Outstanding Young Power Electronics Engineer Award and the R. David Middlebrook Achievement Award from the IEEE Power Electronics Society, the ONR Young Investigator Award, and the SAE Ralph R. Teetor Educational Award. He has co-authored six IEEE prize papers in the area of power electronics, and is also co-founder of Eta Devices, Inc., a startup company focusing on high-efficiency rf power amplifiers for communications.

【学生の関わり様】
 米国MITの電気工学科の教授によるネイティブ英語の講義であり,学生は興味深く講演を聴いていた。MITの簡単な紹介に続き,ノートパソコンなどに用いるACアダプタの小形化に役立つ「高周波パワーエレクトロニクス」に関する先端技術について,多くの写真を用いて詳しく講義された。スイッチングが高周波になると半導体や磁性体の損失が増えるので,その低減技術が重要であること,寄生素子が回路動作に与える影響が大きくなるので注意が必要であること,などが強調された。講義途中の学生からの質問はなかったが,講義の最後や終了後には,日本人や留学生から,いくつかの質問があった。
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