Energy Minimization of Duty-Cycled Systems Through Optimal Stored-Energy Recycling from Idle Domains

📋 论文概要

本文针对占空比系统在睡眠模式下域去耦电容存储能量泄漏的问题，提出了一种最优存储能量回收技术，通过从空闲域回收能量来最小化总能耗。该方法有效降低了唤醒阶段所需的电池能量，适用于IoT和可穿戴应用。

💡 主要创新点

• 提出通过最优控制策略从空闲域回收存储能量，以最小化占空比系统的总能量消耗。
• 利用域去耦电容在睡眠期间存储的能量，通过能量回收降低唤醒阶段的电池能量需求。

🏷 关键词

📄 原文摘要

and wearable applications are aggressively duty-cycled to minimize leakage energy losses. Such systems operate predominantly in Sleep mode, regularly marked by brief intervals of Active operation to perform sensing or communication actions. During Sleep, the considerable electrical energy stored in the domain-decoupling capacitor (Co) leaks away, requiring the battery to deliver the energy (Ewake) needed to restore Co to Vdd during the Wake phase ahead of Active mode operation (Fig. 13.7.1). Because of the relatively limited energy dissipation incurred during the brief Active duration, the overhead presented by Ewake constitutes a significant fraction of total energy dissipation, which degrades battery life significantly. Switched-inductor regulators (e.g., buck and boost) that typically power duty-cycled

👥 作者与机构

Chi-Hsiang Huang1, Arindam Mandal1, Diego Peña-Colaiocco1,

Edevaldo Pereira Da Silva2, Visvesh Sathe1 University of Washington, Seattle, WA NXP Semiconductors, Austin, TX 1 2 SoCs in sensing