Electrostatic generator enhancements for powering IoT nodes via efficient energy management
作者机构：State Key Laboratory of Precision Measurement Technology and InstrumentsDepartment of Precision InstrumentTsinghua University100084BeijingChina
出 版 物：《Microsystems & Nanoengineering》 (微系统与纳米工程（英文）)
年 卷 期：2024年第10卷第2期
页 面：143-152页
核心收录：
学科分类：080702[工学-热能工程] 08[工学] 0807[工学-动力工程及工程热物理]
基 金：supported by the NSFC(No.52275563),China Postdoctoral Science Foundation(BX20220162) Shuimu Tsinghua Scholar Program,and a grant from the Guoqiang Institute,Tsinghua University
摘 要：Electrostatic generators show great potential for powering widely distributed electronic devices in Internet of Things(IoT)***,a critical issue limiting such generators is their high impedance mismatch when coupled to electronics,which results in very low energy utilization ***,we present a high-performance energy management unit(EMU)based on a spark-switch tube and a buck converter with an RF *** optimizing the elements and parameters of the EMU,a maximum direct current output power of 79.2 mW m^(-2)rps^(-1)was reached for a rotary electret generator with the EMU,achieving 1.2 times greater power output than without the ***,the maximum power of the contact-separated triboelectric nanogenerator with an EMU is 1.5 times that without the *** excellent performance is attributed to the various optimizations,including utilizing an ultralow-loss spark-switch tube with a proper breakdown voltage,adding a matched input capacitor to enhance available charge,and incorporating an RF inductor to facilitate the high-speed energy transfer *** on this extremely efficient EMU,a compact self-powered wireless temperature sensor node was demonstrated to acquire and transmit data every 3.5 s under a slight wind speed of 0.5 m/*** work greatly promotes the utilization of electrostatic nanogenerators in practical applications,particularly in IoT nodes.
维普期刊数据库