A Self-Powered SoC with Distributed Cooperative Energy Harvesting and Multi-Chip Power Management for System-in-Fiber

📋 论文概要

本文提出一种自供能SoC，采用分布式协作能量收集和多芯片电源管理，用于系统在光纤（System-in-Fiber）中的微型化无线传感节点。该SoC能够以nW级功耗持续感知生物和环境信号（如钠离子、葡萄糖、温度、神经信号），解决了毫米级自供能系统的自主运行和功耗瓶颈。

💡 主要创新点

• 提出分布式协作能量收集架构，允许多个能量收集单元协同工作，提高从微弱环境能量源（如热能、振动）中获取能量的效率。
• 设计多芯片电源管理方案，通过芯片间协调实现低功耗电源分配和电压调节，支持系统在光纤中的灵活集成与低功耗运行。
• 整体SoC实现完全自主运行，无需外部控制，面向纺织物集成、连续传感的应用场景，功耗低至nW级。

🏷 关键词

📄 原文摘要

Michael Rickley2, Andrew Kopanski2, Lauren Cantley2, Austin Coon2, Matthew Bernasconi2, Tairan Wang2, Benton H. Calhoun1 University of Virginia, Charlottesville, VA MIT Lincoln Laboratory, Lexington, MA 1 2 Rapid reductions in power and size of SoC have paved the way for mm-scale textilebased self-powered systems capable of sensing a variety of biological and environmental data such as sodium, glucose, temperature, and neural signals [1,3-6]. SoCs built for these applications need to be fully autonomous and miniaturized, capable of continuous sensing at nW-level to operate from scarce amounts of harvested energy, and able to communicate in a distributed sensing network. A prior smart E-textile system [1] enables self-powered Na+ sensing but is built with cm-scale commercial-off-the-shelf (COTS) components that consume >4mW. A mm-scale system-in-fiber in [2] with COTS components requires batteries for >10µW power. For systems using custom SoCs with

👥 作者与机构

Xinjian Liu1, Daniel S. Truesdell1, Omar Faruqe1, Lalitha Parameswaran2,