Equivalent circuit model of an impact-based piezoelectric energy harvester

S. H. Kim, S. Ju, C. H. Ji, S. J. Lee

Research output: Contribution to journalConference articlepeer-review

11 Scopus citations


This paper presents an equivalent circuit model of an impact-based piezoelectric energy harvester. The harvester alternately generates two different shapes of damped- oscillating signals due to the asymmetric structure of the device. Those signals have strong high frequency components through mechanical impact from low frequency vibration. Equivalent circuit model with dual voltage source is proposed to precisely describe the behaviour of the harvester. The simulation results of the harvester with typical conversion circuits were compared with measurement data to verify the correctness of proposed model.

Original languageEnglish
Article number012094
JournalJournal of Physics: Conference Series
Issue number1
StatePublished - 2014
Event14th International Conference on Micro- and Nano-Technology for Power Generation and Energy Conversion Applications, PowerMEMS 2014 - Awaji Island, Hyogo, Japan
Duration: 18 Nov 201421 Nov 2014

Bibliographical note

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© Published under licence by IOP Publishing Ltd.


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