An electromagnetic energy harvester based on multiple magnet scavenging power from low frequency vibration

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• 作者：Ahmed Munaz ; Gwiy-Sang Chung
• 刊名：Microsystem Technologies
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：23
• 期：1
• 页码：91-99
• 全文大小：
• 刊物类别：Engineering
• 刊物主题：Electronics and Microelectronics, Instrumentation; Nanotechnology; Mechanical Engineering;
• 出版者：Springer Berlin Heidelberg
• ISSN：1432-1858
• 卷排序：23

文摘

This paper delineates a rectangular shaped multiple magnet based electromagnetic energy harvester (EMEH) and how it scavenges energy from environmental vibrations in a particular magnetic pole array. Finite element analysis (ANSYS FEA) was used to observe the magnetic field areas and the corresponding flux lines with magnitude-based vector plots of the 1–6 magnets surrounding the coil. The proposed EMEH generated up to 224.72 µW of rectified DC power against a load resistance of 200 Ω for an arrangement of 5-magnets. The operating frequency of the generator is 6 Hz, which is suitable for supplying power to portable devices and remote sensor node applications.