Progress in Signals and Telecommunication Engineering Aleksandar Vuchev, Nikolay Bankov, Yasen Madankov and Angel Lichev 11 1 2022 https://www.dline.info/pste/fulltext/v11n1/pstev11n1_2.pdf This paper used the resonant DC-DC converter. We then proposed the determination of the main converter quantities on the basis of a well-known analytical modelling of the resonant tank circuit processes. Finally, we have developed the control characteristics based on normalized load.