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dc.contributor.authorDu, S
dc.contributor.authorJia, Y
dc.contributor.authorArroyo, E
dc.contributor.authorSeshia, AA
dc.date.accessioned2018-11-14T00:32:20Z
dc.date.available2018-11-14T00:32:20Z
dc.date.issued2018
dc.identifier.issn1742-6588
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/285082
dc.description.abstractIn the past decade, vibration energy harvesting has emerged as a potential alternative solution to power wireless sensor nodes. In real-world implementations, external excitation can be very noisy and includes noise signals in a wide frequency band. In order to accommodate operation under noisy excitation, arrays of energy harvesters with different resonance frequencies are often employed to improve responsibility. Due to the nature of noisy excitation and the difference in resonance frequencies, the response voltage signals from each harvester can be very different in amplitude, frequency and phase. In this paper, an array with two cantilevered energy harvesters is studied to analyze the rectified output power with different configurations using full-bridge rectifiers (FBR). The experiments show that connecting the two harvesters in parallel or in series before connecting with a FBR results in significant voltage cancellation due to phase mismatch. The most efficient way to extract energy is to use two FBRs for the two cantilevered energy harvesters, individually, and charge to one single storage capacitor connected at the outputs of the two FBRs.
dc.publisherIOP Publishing
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleRectified Output Power Analysis of Piezoelectric Energy Harvester Arrays under Noisy Excitation
dc.typeConference Object
prism.issueIdentifier1
prism.publicationDate2018
prism.publicationNameJournal of Physics: Conference Series
prism.volume1052
dc.identifier.doi10.17863/CAM.32452
dcterms.dateAccepted2018-06-29
rioxxterms.versionofrecord10.1088/1742-6596/1052/1/012108
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2018-07-26
dc.contributor.orcidDu, Sijun [0000-0001-6238-4423]
dc.contributor.orcidSeshia, Ashwin [0000-0001-9305-6879]
dc.identifier.eissn1742-6596
rioxxterms.typeConference Paper/Proceeding/Abstract
pubs.funder-project-idTechnology Strategy Board (102152)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/K000314/1)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/L010917/1)
cam.issuedOnline2018-07-26
pubs.conference-name17th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS 2017)
pubs.conference-start-date2017-11-14
pubs.conference-finish-date2017-11-17


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International