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22 April 2020 DC power and loss evaluation of an out-of-plane mode electret-based energy harvester
Zhaoshu Yang, Lihua Tang, Kai Tao, Kean Aw
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Proceedings Volume 11376, Active and Passive Smart Structures and Integrated Systems XIV; 1137629 (2020) https://doi.org/10.1117/12.2554874
Event: SPIE Smart Structures + Nondestructive Evaluation, 2020, Online Only
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.
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Zhaoshu Yang, Lihua Tang, Kai Tao, and Kean Aw "DC power and loss evaluation of an out-of-plane mode electret-based energy harvester", Proc. SPIE 11376, Active and Passive Smart Structures and Integrated Systems XIV, 1137629 (22 April 2020); https://doi.org/10.1117/12.2554874
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KEYWORDS
Diodes
Device simulation
Interfaces
Capacitance
Modeling
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