MISIMO: A Multi-Input Single-Inductor Multi-Output Energy Harvester Employing Event-Driven MPPT

📋 论文概要

该论文提出了一种多输入单电感多输出（MISIMO）能量收集器，采用事件驱动最大功率点跟踪（MPPT）控制，解决了环境能量源与设备瞬时功率需求不匹配的问题。在28nm FDSOI工艺下实现了89%的峰值效率和60000倍的动态范围。

💡 主要创新点

• 提出事件驱动的MPPT控制策略，实现多输入源的高效能量收集与动态功率匹配。
• 采用单电感多输出架构，减少外部元件数量，同时支持宽动态范围（60000倍）的功率管理。

🏷 关键词

📄 原文摘要

Sally Safwat Amin, Patrick P. Mercier University of California, San Diego, La Jolla, CA Harvesting energy from ambient sources is an attractive way to enable net-zeropower operation in small wearables, environmental monitors, and IoT devices. However, the power available from most harvesting sources is low, and is thus often mismatched to the instantaneous demands of wirelessly connected devices, which require up to 10s of mW during radio transmission, and down to 1μW during sleep. Previous works have suggested utilizing multiple energy harvesting sources to increase extractable power, incorporating a battery as an energy buffer, and processing energy with a single inductor to minimize device volume [1,2]. However, such prior art does not support the generation of multiple independently regulated power domains needed for modern SoCs. While single-inductor multioutput (SIMO) converters have demonstrated multi-domain regulation [3,4], they

👥 作者与机构

Control to Achieve 89% Peak Efficiency and a 60,000×, Dynamic Range in 28nm FDSOI