Javier Sebastián was born in Madrid, Spain, in 1958. He received an M.Sc. degree from the Technical University of Madrid (UPM), Madrid, Spain, and a Ph.D. degree from the University of Oviedo, Gijon, Spain, in 1981 and 1985, respectively, both in industrial engineering. He was an Assistant Professor and an Associate Professor with UPM and the University of Oviedo. Since 1992, he has been with the University of Oviedo, where he is currently a Professor. His research interests include switching-mode power supplies, modeling of DC/DC converters, single-phase high-power factor rectifiers, LED drivers, DC/DC converters for envelope tracking techniques and visible light communication (VLC), and the use of wide-bandgap semiconductors in power supplies.