A 13.56MHz Current-Mode Wireless Power and Data Receiver with Efficient Power Extracting Controller and Energy-Shift Keying Technique for Loosely Coupled Implantable Devices Sung-Wan Hong

📋 论文概要

该论文提出了一种13.56MHz电流模式无线功率和数据接收器，针对低耦合系数条件下植入式设备等应用，通过高效功率提取控制器和能量移位键调制，同时实现功率接收与数据传输。

💡 主要创新点

• 采用电流模式架构，在低耦合系数环境下比电压模式更具优势，能更高效地从LC谐振槽提取功率。
• 设计了高效功率提取控制器，优化了能量采集效率。
• 引入能量移位键（Energy-Shift Key）实现数据调制，在功率传输的同时传递数据，无需额外电路。

🏷 关键词

📄 原文摘要

attractive solution. There are two types of WPT receivers (RXs), voltage-mode (VM) RX [1], [2] and current-mode (CM) RX [3], [4]. The VM-RX is suitable when the coupling coefficient (k12) between the transceiver (TX) and the RX coils is sufficiently high. However, in many practical cases, the k12 is low because of a considerably small implanted RX coil and/or the relatively long distance between the TX and RX coils, as shown in Fig. 32.1.1 (top). In this case, the CM-RX is more suitable. To receive a lower power from the TX, the CM-RX stores power in its LC tank by resonance and transfers the energy to a battery when the energy reaches the optimal level. CM-RXs can be categorized in two types depending on the location of their coil and capacitor. The CM-RX in [3] extracts the power stored in the LC tank (PLC) of the RX without a residual PLC. However, it cannot store a large PLC because of the

👥 作者与机构

Sookmyung Women's University, Seoul, Korea, To supply power to implantable systems, wireless power transfer (WPT) is an