Prof. En-Chih Chang received his BS degree from Feng-Chia University, Taichung, Taiwan, ROC, in 1999; his MS degree from the National Taiwan Ocean University, Keelung, Taiwan, ROC, in 2001; and his PhD degree from the National Cheng Kung University, Tainan, Taiwan, ROC, in 2008, all in electrical engineering. In August 2009, he joined I-Shou University (ISU), Kaohsiung, Taiwan, where, since 2020, he has been a Professor in the Department of Electrical Engineering. His current research interests include sliding mode control, intelligent control, grey theory and their applications in power electronics systems.