Peter Drgona, Rastislav Stefun, Slavomir Kascak and Jan Morgos 2020. Demonstration of a System Identification on Real Step-Down Power Converters. Communications - Scientific letters of the University of Zilina. 22, 4 (Oct. 2020), 128-133. DOI:https://doi.org/10.26552/com.C.2020.4.128-133.