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Impact-driven up-conversion in piezoelectric MEMS energy harvesters with pulsed excitation
RISE Acreo AB, Gothenburg, Sweden.
RISE Acreo AB, Gothenburg, Sweden.
RISE Acreo AB, Gothenburg, Sweden.
2018 (English)In: Journal of Physics, Conference Series, ISSN 1742-6588, E-ISSN 1742-6596, Vol. 1052, no 1, article id 012106Article in journal (Refereed) Published
Abstract [en]

The potential of impact-driven frequency up-conversion in a MEMS EH is evaluated using numerical simulations. The investigated design is compared to a conventional cantilever EH in terms of output power and loss rate. The upshifting can lead to significantly increased output power at a similar loss rate but as the time scale for the loss is long, the benefit is limited. This also requires an effective upshifting process. The design of the impact introduces a length scale that must be selected with excitation, gravity, and pre-stress taken into account. This makes this type of EH application-dependent as a non-optimal choice may result in low output power.

Place, publisher, year, edition, pages
2018. Vol. 1052, no 1, article id 012106
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-35436DOI: 10.1088/1742-6596/1052/1/012106OAI: oai:DiVA.org:miun-35436DiVA, id: diva2:1278231
Available from: 2019-01-14 Created: 2019-01-14 Last updated: 2019-01-14Bibliographically approved

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Rusu, Cristina
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