Constant Voltage Output Autonomous Wireless Power Transfer System
Yutaro Komiyama, Shuya Matsuhashi, Wenqi Zhu, Kien Nguyen, Takeshi Uematsu, Yuki Ito, Taichi Mishima, and Hiroo Sekiya
2021 IEEE Workshop on Nonlinear Circuit Networks (NCN2021), pp.21-24, Dec., 2021. [pdf document]

<Abstract>

This paper presents an autonomous wireless power transfer (WPT) system whose transmitter is composed of the load-independent inverse class-E oscillator. The proposed circuit operates by self-oscillation, which enables autonomous operation without requiring an external drive circuit. Additionally, the proposed system is designed to have load independence, ensuring the constant output voltage and zero current switching (ZCS) against load variations. The experimental measurement was conducted for the prototype WPT system, which showed the validity and effectiveness of the proposed system.