Parasitic Parameters Analysis and Design of Snubber Circuit on PCB for High-frequency Wireless Power Transfer

This paper presents an analysis of the PCB pattern, which is for a high-frequency inverter circuit. In a high-frequency inverter circuit, the design of the snubber circuit, which suppresses surge voltage, is essential to achieve kilowatt operation. The authors are aiming to simulate a surge voltage in order to decide the parameters of the snubber circuit. In this paper, the surge voltage is simulated using the analysis result of the PCB and the models of the passive components. Furthermore, the surge voltage with changing the snubber capacitor is evaluated in order to make the relationship between the surge voltage and the snubber circuit parameters as the first step of the parameters design by using simulation.