3D Wireless Power Transfer with Noise Cancellation Technique for –62dB Noise Suppression and 90.1% Efficiency

📋 论文概要

本文提出了一种三维无线功率传输（3D WPT）技术，结合噪声消除技术，实现了-62dB的噪声抑制和90.1%的效率，解决了传统单线圈发射机在接收机角度偏移时功率传输受限的问题。

💡 主要创新点

• 提出三维无线功率传输架构，支持接收机在大角度偏移下高效传输功率
• 集成噪声消除技术，实现-62dB的噪声抑制，提升系统信噪比
• 实现90.1%的峰值效率，兼顾高空间自由度与高效率

🏷 关键词

📄 原文摘要

Shao-Chang Huang1, Yi-Hsiang Kao1, Ke-Horng Chen1, Kuo-Lin Zheng1,2, Ying-Hsi Lin3, Shian-Ru Lin3, Tsung-Yen Tsai3 National Yang Ming Chiao Tung University, Hsinchu, Taiwan Chip-GaN Power Semiconductor, Hsinchu, Taiwan 3 Realtek Semiconductor, Hsinchu, Taiwan 1 2 Compared with the inductive wireless power transfer (WPT), the resonant WPT has more spatial freedom due to its advantage of long distance power transfer [1]. However, a single coil transmitter (TX) has its limitation in one dimension in Fig. 30.8.1, if the receiver (RX) has an angle θ with respect to the TX [2]. When θ increases to 90°, the grade of coupling expressed by the coupling factor k decreases to zero. At the same time, the communication strength is weakened between the RX and the TX sense coil, which is connected in parallel with the TX main coil, and is easily affected by noise. Through the TX2 coil perpendicular to TX1, the RX can still receive energy in case θ changes. However,

👥 作者与机构

Fei Huang1, Hsing-Yen Tsai1, Chi-Yu Huang1, Yu-Chun Luo1, Ching-Ho Li1,