Simultaneous Wireless Data and Power Transfer System Utilizing Frequency Characteristics of Magnetic Resonance with Output Power Fluctuation Suppressed

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2022/01/01

タイトル(英語): Simultaneous Wireless Data and Power Transfer System Utilizing Frequency Characteristics of Magnetic Resonance with Output Power Fluctuation Suppressed

著者名: Takahiro Fujita (Graduate School of Science and Technology, Meiji University), Kazuyuki Wada (Graduate School of Science and Technology, Meiji University)

著者名(英語): Takahiro Fujita (Graduate School of Science and Technology, Meiji University), Kazuyuki Wada (Graduate School of Science and Technology, Meiji University)

キーワード: wireless power transfer，magnetic resonance，simultaneous data and power transfer，frequency shift keying，zero reactance frequency，phase locked loop

要約(英語): A circuit of simultaneous data and power transfer systems exploiting frequency shift keying (FSK) in the magnetic resonance wireless power transfer (MR-WPT) circuit is proposed. The proposed circuit attains FSK based on the frequency characteristics of the MR-WPT circuits known as frequency splitting phenomenon and contains a frequency control circuit using a phase-locked loop to enhance robustness against a fluctuation of a load and a coupling coefficient between transfer coils. The proposed circuit is implemented on the designed printed circuit board with off-the-shelf integrated circuits. In addition, an FSK demodulator using an FPGA is also presented and implemented. Experiments reveal the feature of output power insensitive to the space between coils. The proposed circuit achieved transmitting data at a bit rate of 57.6 kbps and delivering 0.60-W power with 32.4% efficiency at the coupling coefficient between transfer coils of 0.36 for the 1.01-Ω ohmic load.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.142 No.1 （2022） 特集：電子回路関連技術

本誌掲載ページ: 2023/06/14 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/142/1/142_6/_article/-char/ja/