An Inductor-less Capacitor-less Synchronous PiezoelectricElectromagnetic Hybrid Energy Harvesting Platform with Coil-Sharing Scheme

📋 论文概要

该论文提出了一种无电感、无电容的同步压电-电磁混合能量收集平台，通过线圈共享技术同时收集两种振动能量，解决了传统SSHI整流器依赖外置大电感导致系统体积过大的问题。

💡 主要创新点

• 首次实现无电感、无电容的同步压电-电磁混合能量收集架构，避免使用大体积无源元件。
• 提出线圈共享机制，将压电和电磁能量收集路径整合，提高功率密度并减小体积。

🏷 关键词

📄 原文摘要

Fudan University, Shanghai, China 1 2 *Equally Credited Authors (ECAs) Along with the rise of the Internet of Things (IoT) and edge artificial intelligence (AI), energy harvesting provides a promising sustainable power solution for these edge devices. Piezoelectric (PE) and electromagnetic (EM) transducers are two major ways to harvest ambient vibration energy [1–6]. For PE harvesters, various active rectifiers [7–14] were proposed to improve energy extraction, such as synchronous switch harvesting on inductor (SSHI) rectifiers. However, using high-quality off-chip inductors increases system volumes and costs, while using on-chip (or off-chip) switched capacitors increases chip areas (or system sizes) in addition to a relatively lower overall efficiency. For an EM harvester [15,16], it can be rectified by a boost converter [16] by reusing the EM coil as the inductor. However, off-chip inductors are still required for power conditioning in other DC-DC and regulation

👥 作者与机构

Yuchen Wei*1, Xinling Yue*1, Zhiyuan Chen2, Sijun Du1

Delft University of Technology, Delft, The Netherlands