DC power and loss evaluation of an out-of-plane mode electret-based energy harvester

Zhaoshu Yang, Lihua Tang, Kai Tao, Kean Aw

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Though there exist numerous researches concentrating on theoretical modelling of an electret-based vibration energy harvester (eVEH) connected with a pure load resistor, holistic modelling of eVEH with DC interface circuits is rarely studied. In this paper, a theoretical model of the eVEH connected to a DC interface circuit with a full bridge rectifier is proposed and validated by simulation and experiment. The power loss of eVEHs due to the reverse current leakage of diodes in the rectifier is investigated. The results show that the diodes with large reverse current are not recommended to construct the rectifier for eVEHs, due to the large impendence feature of the eVEH.

Original languageEnglish
Title of host publicationActive and Passive Smart Structures and Integrated Systems IX
EditorsJae-Hung Han, Gang Wang, Shima Shahab
PublisherSPIE
ISBN (Electronic)9781510635296
DOIs
StatePublished - 2020
EventActive and Passive Smart Structures and Integrated Systems IX 2020 - None, United States
Duration: 27 Apr 20208 May 2020

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11376
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceActive and Passive Smart Structures and Integrated Systems IX 2020
Country/TerritoryUnited States
CityNone
Period27/04/208/05/20

Keywords

  • electret-based vibration energy harvester
  • full-bridge rectifier
  • Interface circuit.
  • reserve current leakage

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