Spanik, Pavol, Jozef Kandrac, Michal Frivaldsky, and Peter Drgona. “Verification of Operation Modes of Designed LLC Resonant Converter”. Communications - Scientific letters of the University of Zilina 13, no. 2A (July 31, 2011): 67-73. Accessed April 6, 2026. http://journals.uniza.sk/index.php/communications/article/view/845.