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A Flexible Doubly Clamped Beam Energy Harvester with a Standard Rectifier Electric Circuit

Jie Mei, Huafeng Shi, Dingfang Chen, Lijie Li Orcid Logo, Wenfeng Li, Qiong Fan

Human Centered Computing, Volume: 11354, Pages: 69 - 78

Swansea University Author: Lijie Li Orcid Logo

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DOI (Published version): 10.1007/978-3-030-15127-0_7

Abstract

While wearable electronics are rapidly developing nowadays, it is greatly limited by the power solutions. Flexible piezoelectric energy harvester presents advantages of high energy density, compact architecture, and easy integration with MEMS, which provides an attractive prospect to power these nex...

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Published in: Human Centered Computing
ISBN: 9783030151263 9783030151270
ISSN: 0302-9743 1611-3349
Published: Cham Springer International Publishing 2019
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa50233
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Abstract: While wearable electronics are rapidly developing nowadays, it is greatly limited by the power solutions. Flexible piezoelectric energy harvester presents advantages of high energy density, compact architecture, and easy integration with MEMS, which provides an attractive prospect to power these next generation electronics. Since the flexible devices are usually devised with wavy, island-bridge, and precisely controlled buckling structures, the doubly clamped beam structure for energy harvesting application is analytically studied in this paper. Combine with Euler-Bernoulli beam theory and separation variable method, the analytical expression for output voltage is derived. By conducting the analytical simulation, it is found that the output power is related with the geometry dimensions, external excitation and load resistances. For further validation, experiment is systematically studied. By connecting the standard rectifier electric circuit with the energy harvesting device, it is found that a 0.1uF capacitor can be fully charged in 0.15 s, and the charged output voltage is about 2.5 V, which are successfully used for powering LEDs.
Item Description: Part of the Lecture Notes in Computer Science book series (LNCS, volume 11354)Also part of the Information Systems and Applications, incl. Internet/Web, and HCI book sub series (LNISA, volume 11354)
Keywords: Flexible energy harvester, Doubly clamped beam, Rectifier electric circuit
College: Faculty of Science and Engineering
Start Page: 69
End Page: 78

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