Haruo Kobayashi is a professor in the Division of Electronics and Informatics, Gunma University, Japan. He received his B.S. and M.S. in information physics from the University of Tokyo in 1980 and 1982, respectively, an M.S. in electrical engineering from the University of California, Los Angeles, in 1989, and a Ph.D. in electrical engineering from Waseda University in 1995. His research interests include analog/mixed-signal integrated circuit design and testing, signal-processing algorithms, charge pump circuits and DC–DC converters.