DE級送電器とE級整流器を用いた電磁誘導型無線電力伝送システムの設計
井上 一秀, 永島 和治, 関屋大雄, 畑本 浩伸, 清水 聡?
電気学会半導体電力変換研究会, July, 2013. [pdf document]

<Abstract>

This paper presents the wireless power transfer (WPT) system through electromagnetic induction with class-DE transmitter and class-E rectifier along with its numerical design procedure. By applying class-DE transmitter and class-E rectifier for WPT system, it is possible to enhance power-transfer efficiency of the WPT system at high-frequencies because both the transmitter and rectifier satisfy the class-E zero-voltage-switching and zero-derivative-switching (ZVS/ZDS) conditions. Additionally, it is also possible to design WPT system without consideration of complicated impedance matching for achieving class-E ZVS/ZDS conditions by using numerical design procedure. The experimental results show the 90.4 % power-transfer efficiency at 100 V / 1A output and 500 kHz operating frequency.