A Multi-Frequencies Micro-Electromagnetic Vibration Energy Harvester with Nonlinearity for Expanding the Frequency Band

Author:

Lei Yiming1,Chen Xiaojuan2,Wen Zhiyu3

Affiliation:

1. School of Artificial Intelligence and Big Data, Chongqing College of Electronic Engineering, Chongqing 401331, China

2. School of Intelligent Manufacturing and Automotive, Chongqing College of Electronic Engineering, Chongqing 401331, China

3. Key Laboratory of Fundamental Science on Micro/Nano Device and System Technology, Chongqing University, Chongqing 400044, China

Abstract

In this paper, we proposed a multi-frequencies electromagnetic vibration energy harvester (EVEH) with a wider operating frequency band. The EVEH contains three different vibration picking-up systems with different natural frequencies. A broadened bandwidth was obtained by combining the structural nonlinearity of the vibration picking-up systems with the multi-frequencies, while the vibration energy harvest was increased by adopting two induction coils in the EVEH system. At an acceleration of 1.5g and frequencies of 45.6, 75 and 146.5 Hz, the peak–peak voltages of the prototype were 336, 270 and 39.8 mV, respectively. The corresponding bandwidths were 10.1, 7.8 and 4.2 Hz, respectively.

Publisher

American Scientific Publishers

Subject

Condensed Matter Physics,General Materials Science,Biomedical Engineering,General Chemistry,Bioengineering

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. A magnetoelectric energy harvester for low-frequency vibrations and human walking;Journal of Magnetism and Magnetic Materials;2022-01

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