Philip T. Krein is the Grainger Endowed Chair Professor Emeritus in Electric Machinery and Electromechanics and Director of the Grainger Center for Electric Machinery and Electromechanics at the University of Illinois at Urbana-Champaign. He is also a Distinguished Professor under the China 1,000 Talents Program in the College of Electrical Engineering at Zhejiang University, and Executive Dean of the Zhejiang University–University of Illinois at Urbana-Champaign Institute for engineering in Haining, China. From 2003 to 2014, he was a Founder and Director of SolarBridge Technologies, Inc., Austin, Texas, a developer of long-life integrated inverters for solar energy, and now part of Enphase. His current research interests include all aspects of power electronics, machines, drives, and electric transportation, with an emphasis on nonlinear control approaches. He holds 42 U.S. patents. He is a recipient of the IEEE William E. Newell Award in Power Electronics, a past President of the IEEE Power Electronics Society, and a past Chair of the IEEE Transportation Electrification Community. He is a Fellow of the IEEE, a Fellow of the U.S. National Academy of Inventors, and a member of the U.S. National Academy of Engineering.