A Single-Power-Link 13.56MHz Wireless Power and Data Transfer System with Synchronized Phase-Shifted Time-Multiplexing Dual Uplinks for Implantable Voltammetry

📋 论文概要

本文提出了一种基于13.56MHz单功率链路的无线功率与数据传输系统，采用同步相移时分复用技术，在不增加额外线圈且不降低效率的前提下，同时支持功率传输和两种上行数据链路。该系统面向植入式伏安传感器，实现了60%的峰值端到端效率、快速动态响应以及超过99.9%的数据线性度。

💡 主要创新点

• 提出同步相移时分复用技术，实现单功率链路同时支持功率和双上行数据传输，无需额外线圈。
• 在不牺牲效率的情况下，通过时间复用和相位控制实现功率与数据的同步传输，解决了传统方案中效率与数据速率难以兼顾的问题。

🏷 关键词

📄 原文摘要

Abstract A 13.56MHz wireless power and data transfer (WPDT) system for implantable voltammetry sensor is presented. With the synchronized phase-shifted time-multiplexing technique, the system uses a single power link to support simultaneous power and two types of data transmission via dual-uplinks with neither additional coils nor efficiency degradation. The single-power-link operation is verified in silicon, measuring a 60% peak end-to-end efficiency, a fast dynamic response, and a >99.9% data linearity. Implantable voltammetry systems play an important role in tracking biochemical activities in living organisms [1]. In implantable applications, batteries are generally not preferred due to the size, weight, risk of leakage, and the need for periodical surgical replacements. Wireless power transfer systems thus can provide a safer and long-lasting solution. To achieve higher power efficiency and reduce heat dissipation, a wireless uplink is necessary

👥 作者与机构

Zhenhao Li1, Junyao Tang1, Nawab Singh2, Jianqiang Jiang1, Lei Zhao1, Wenshuo Zhu1, Xuan Sun1, Liang Dong2, Cheng Huang1

Iowa State University, Ames, IA, 2University of Georgia, Athens, GA