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Realistic Circuit Model of an Impact-Based Piezoelectric Energy Harvester

Title
Realistic Circuit Model of an Impact-Based Piezoelectric Energy Harvester
Authors
Kim, SunheeJu, SunaJi, Chang-HyeonLee, Seungjun
Ewha Authors
이승준지창현
SCOPUS Author ID
이승준scopus; 지창현scopus
Issue Date
2015
Journal Title
JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE
ISSN
1598-1657JCR Link2233-4866JCR Link
Citation
vol. 15, no. 5, pp. 463 - 469
Keywords
Circuit modelingenergy harvesterimpact-based harvesterpiezoelectricvibration
Publisher
IEEK PUBLICATION CENTER
Indexed
SCIE; SCOPUS; KCI WOS scopus
Abstract
A vibration-based energy harvester and its equivalent circuit models have been reported. Most models predict voltage signals at harmonic excitation. However, vibrations in a natural environment are unpredictable in frequency and amplitude. In this paper, we propose a realistic equivalent circuit model of a frequency-up-converting impact-based piezoelectric energy harvester. It can describe the behavior of the harvester in a real environment where the frequency and the amplitude of the excitation vary arbitrarily. The simulation results of the model were compared with experimental data and showed good agreement. The proposed model can predict both the impact response and long term response in a non-harmonic excitation. The model is also very useful to analyze the performance of energy conversion circuitry with the harvester.
DOI
10.5573/JSTS.2015.15.5.463
Appears in Collections:
엘텍공과대학 > 전자공학과 > Journal papers
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