An Ambient Energy Harvesting Interface for Battery-Free Wireless Sensor Nodes

Chi Wei Liu*, Cong Sheng Huang, Wen Po Lo, Po Hung Chen

*此作品的通信作者

研究成果: Conference contribution同行評審

摘要

This paper presents a low-quiescent-power battery-free energy harvesting interface for micro-watt to milli-watt applications with a single-inductor dual-input dual-output (SIDIDO) buck-boost converter. The system contains one renewable source input, one regulated output and one bidirectional energy transfer node with a storage capacitor for storage and reuse the energy. To achieve high power conversion efficiency (PCE) with micro-watt input power, we embedded dynamic-power-gating under-voltage lockout (DPG-UVLO) circuit, dynamic-voltage-feedback (DVFB) and pulse-frequency modulation (PFM) control to reduce quiescent power. The measurement quiescent power is 1.9 μW and the peak PCE is 86.4%.

原文English
主出版物標題Proceedings of 2024 IEEE Wireless Power Technology Conference and Expo, WPTCE 2024
發行者Institute of Electrical and Electronics Engineers Inc.
頁面459-462
頁數4
ISBN(電子)9798350349139
DOIs
出版狀態Published - 2024
事件2024 IEEE Wireless Power Technology Conference and Expo, WPTCE 2024 - Kyoto, 日本
持續時間: 8 5月 202411 5月 2024

出版系列

名字Proceedings of 2024 IEEE Wireless Power Technology Conference and Expo, WPTCE 2024

Conference

Conference2024 IEEE Wireless Power Technology Conference and Expo, WPTCE 2024
國家/地區日本
城市Kyoto
期間8/05/2411/05/24

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