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Multilayer piezoelectric energy harvesting using single supply pre-biasing for maximum power generation

Multilayer piezoelectric energy harvesting using single supply pre-biasing for maximum power generation
Multilayer piezoelectric energy harvesting using single supply pre-biasing for maximum power generation
This paper studies the method of increasing output power of multilayer piezoelectric energy harvesters using Single Supply Pre-biasing (SSPB). In SSPB, it is important that the pre-biasing voltage be applied at the right moment. Multilayer piezoelectric energy harvesters are well suited SSPB as there is no phase lag between piezoelectric charge displacement on each layer and one layer can therefore be used for switch timing control. Compared to previously reported SSPB circuits, the power consumption of the circuit has been significantly reduced. Experimentally, the output power of a bimorph single-layer energy harvester using SSPB has been increased by a factor of three compared to that using a bridge rectifier. Furthermore, the possibility of implementing SSPB in bimorph double-layer energy harvesters has also been investigated.
single supply pre-biasing, multi-layer piezoelectric
141-144
Elliott, A.D.T.
f890488e-0a1a-460e-ad02-20ae4a214efe
Zhu, D.
ec52eae1-39fa-427c-968b-e76089a464a6
Beeby, S.P.
ba565001-2812-4300-89f1-fe5a437ecb0d
Mitcheson, P.D.
8a721462-af90-47fa-8927-1d31c00bc2d5
Elliott, A.D.T.
f890488e-0a1a-460e-ad02-20ae4a214efe
Zhu, D.
ec52eae1-39fa-427c-968b-e76089a464a6
Beeby, S.P.
ba565001-2812-4300-89f1-fe5a437ecb0d
Mitcheson, P.D.
8a721462-af90-47fa-8927-1d31c00bc2d5

Elliott, A.D.T., Zhu, D., Beeby, S.P. and Mitcheson, P.D. (2012) Multilayer piezoelectric energy harvesting using single supply pre-biasing for maximum power generation. At PowerMEMS 2012 PowerMEMS 2012, United States. 02 - 05 Dec 2012. 4 pp, pp. 141-144.

Record type: Conference or Workshop Item (Other)

Abstract

This paper studies the method of increasing output power of multilayer piezoelectric energy harvesters using Single Supply Pre-biasing (SSPB). In SSPB, it is important that the pre-biasing voltage be applied at the right moment. Multilayer piezoelectric energy harvesters are well suited SSPB as there is no phase lag between piezoelectric charge displacement on each layer and one layer can therefore be used for switch timing control. Compared to previously reported SSPB circuits, the power consumption of the circuit has been significantly reduced. Experimentally, the output power of a bimorph single-layer energy harvester using SSPB has been increased by a factor of three compared to that using a bridge rectifier. Furthermore, the possibility of implementing SSPB in bimorph double-layer energy harvesters has also been investigated.

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More information

e-pub ahead of print date: 22 November 2012
Venue - Dates: PowerMEMS 2012, United States, 2012-12-02 - 2012-12-05
Keywords: single supply pre-biasing, multi-layer piezoelectric
Organisations: EEE

Identifiers

Local EPrints ID: 345551
URI: https://eprints.soton.ac.uk/id/eprint/345551
PURE UUID: 5b2bd851-a5e8-44f6-bb94-a5997b198e76
ORCID for S.P. Beeby: ORCID iD orcid.org/0000-0002-0800-1759

Catalogue record

Date deposited: 26 Nov 2012 15:05
Last modified: 06 Jun 2018 13:07

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