Abstract
This paper presents a novel out-of-plane electret-based vibrational power generator (EVPG) that has both negative and positive charged electret plates integrated into a single seismic mass system. Compared with the conventional single-charged two-plate configuration, the proposed device not only exhibits an enhanced output voltage magnitude but also has a wide operational bandwidth due to spring softening nonlinearity according to the experimental analysis. With the acceleration changes from 0.1g to 0.5g, the operating 3-dB bandwidth can be increased 2.6 times from 2.5 Hz to 6.5 Hz, which indicates higher energy conversion efficiency than a linear energy harvester in the practical scenario of broadband random vibrations.
| Original language | English |
|---|---|
| Article number | 012064 |
| Journal | Journal of Physics: Conference Series |
| Volume | 557 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2014 |
| Externally published | Yes |
| Event | 14th International Conference on Micro- and Nano-Technology for Power Generation and Energy Conversion Applications, PowerMEMS 2014 - Awaji Island, Hyogo, Japan Duration: Nov 18 2014 → Nov 21 2014 |
Bibliographical note
Publisher Copyright:© Published under licence by IOP Publishing Ltd.
ASJC Scopus Subject Areas
- General Physics and Astronomy