An Electromagnetic Energy Harvesting Circuits for Self-powered Wireless Sensor Network

被引：3
作者：
Li, Ping [1 ]
Wen, Yumei [1 ]
Liu, Pangang [1 ]
Li, Xinshen [1 ]
Jia, Chaobo [1 ]
机构：
[1] Chongqing Univ, Coll Optoelect Engn, Minist Educ, Key Lab Optoelect Technol & Syst, Chongqing 400044, Peoples R China
来源：
2008 10TH INTERNATIONAL CONFERENCE ON CONTROL AUTOMATION ROBOTICS & VISION: ICARV 2008, VOLS 1-4 | 2008年
关键词：
energy harvesting; self-powered; electromagnetic generator; power amplification circuit; WSN;
D O I：
10.1109/ICARCV.2008.4795520
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
This paper presents a self-powered electromagnetic energy harvesting scheme by using a composite structure and a self-powered supply circuit. The energy of the vibrating wave induced from the magnetostrictive Terfenol-D plate can be converged by using an ultrasonic horn and the more vibrating energy can be converted into electric energy. A new switched capacitor network for storing and accumulating the electric energy is developed. By connecting storing capacitors in parallel or series, the energy is charged into the storage capacitors at long time, and is charged at very short time. As a result, a higher output voltage/power can be obtained. The self-powered supply with a weak power (20 mu W) may drive wireless sensors with higher power consumption (75mW) in a distance of 60 m and a short period of 620 ms.
引用
收藏
页码：214 / 217
页数：4
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