Electromagnetic Mechanical Energy-Harvester IC with No Off-Chip Component and One Switching Period MPPT Achieving up to 95.9% End-to-End Efficiency and 460% Energy-Extraction Gain

📋 论文概要

该论文提出了一种电磁机械能量收集集成电路，无需片外元件，并采用单开关周期最大功率点跟踪（MPPT）技术，显著提升了从亚g振动环境中提取电能的效率，适用于工业环境中的自供电传感器节点。

💡 主要创新点

• 首次实现无任何片外元件的电磁能量收集IC，降低了系统成本和体积。
• 提出单开关周期MPPT技术，能够在单个开关周期内快速追踪最大功率点，提高能量提取效率。

🏷 关键词

📄 原文摘要

from sub-g vibrational environments while having a volume of a few cm3. Thus, such EMHs are promising candidates for powering net-zero-power sensor nodes as compared to their electrostatic- or piezoelectric-based counterpars [1, 2], especially in the industrial environments (e.g., harvesting energy from stator of motors or rotating wheels). Nevertheless, the current harvesting ICs (HICs) require a costly bill-of-materials (BoM) to enhance the electrical power extraction [3-6] as compared to the low-efficiency lowcost passive harvesting technique, namely, full bridge rectifier (FBR) that is adopted in many existing applications. Moreover, to exploit the entire EMH’s mechanical-toelectrical conversion capability, and to reduce the EMH size and weight, the HIC has to operate at the maximum-power-point (MPP), meaning matching the HIC input

👥 作者与机构

Anthony Quelen, Gaël Pillonnet, Pierre Gasnier, Francois Rummens, Sébastien Boisseau

CEA-LETI-MINATEC, Grenoble, France Electromagnetic vibration energy harvesters (EMHs) can harvest mW-range power