Wireless Power Transfer System with Series Resonant Inverse Class-E Inverter
Yutaro Komiyama, Wenqi Zhu, Wei Xiuqin, Kien Nguyen, and Hiroo Sekiya
2023 International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP'23), pp.194-197, Mar., 2023. [pdf document]

<Abstract>

This paper proposes the wireless power transfer (WPT) system with the series resonant inverse class-E inverter. The pro- posed WTP system mitigates the switch-voltage stress in the inverter part by achieving the zero-current switching (ZCS) instead of the zero-voltage switching (ZVS). The design procedure for the proposed WPT system is described. The circuit optimization is applied to the proposed system for obtain- ing maximum efficiency. Based on the design and optimization, the prototype of the proposed WPT system was implemented. The implemented system achieved 84.5 % efficiency with 42 W output power at 1 MHz.