Ned Mohan is the Oscar A. Schott Professor of Power Electronics at the University of Minnesota, He has numerous patents and publications in this field. He is a Fellow of the IEEE. Tore M. Undeland is a professor in Power Electronics in the Faculty of Information Technology, Mathematics and Electrical Engineering at the Norwegian University of Science and Technology, NTNU, Trondheim, Norway. He is also a scientific advisor to the SINTEF Energy Research. William P. Robbins is a professor in the Department of Electrical and Computer Engineering at the University of Minnesota. Prior to joining the University of Minnesota, he was a research engineer at the Boeing Company.