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TitleElectronic optimization for an energy harvesting system based on magnetoelectric Metglas/poly(vinylidene fluoride)/Metglas composites
Author(s)Reis, S.
Silva, M. P.
Castro, N.
Correia, V.
Rocha, J. G.
Martins, P.
Lasheras, A.
Gutierrez, J.
Lanceros-Méndez, S.
KeywordsEnergy harvesting
Polymer composites
Electronic devices
Issue date2016
PublisherIOP Publishing
JournalSmart Materials and Structures
CitationReis, S., Silva, M. P., Castro, N., Correia, V., Rocha, J. G., Martins, P., . . . Lanceros-Mendez, S. (2016). Electronic optimization for an energy harvesting system based on magnetoelectric Metglas/poly(vinylidene fluoride)/Metglas composites. Smart Materials and Structures, 25(8). doi: 10.1088/0964-1726/25/8/085028
Abstract(s)Harvesting magnetic energy from the environment is becoming increasingly attractive for being a renewable and inexhaustible power source, ubiquitous and accessible in remote locations. In particular, magnetic harvesting with polymer-based magnetoelectric (ME) materials meet the industry demands of being flexible, showing large area potential, lightweight and biocompatibility. In order to get the best energy harvesting process, the extraction circuit needs to be optimized in order to be useful for powering devices. This paper discusses the design and performance of five interface circuits, a full-wave bridge rectifier, two Cockcroft–Walton voltage multipliers (with 1 and 2 stages) and two Dickson voltage multipliers (with 2 and 3 stages), for the energy harvesting from a Fe61.6Co16.4Si10.8B11.2 (Metglas)/polyvinylidene fluoride/Metglas ME composite. Maximum power and power density values of 12 μW and 0.9 mW cm−3 were obtained, respectively, with the Dickson voltage multiplier with two stages, for a load resistance of 180 kΩ, at 7 Oe DC magnetic field and a 54.5 kHz resonance frequency. Such performance is useful for microdevice applications in hard-to-reach locations and for traditional devices such as electric windows, door locking, and tire pressure monitoring.
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Appears in Collections:CDF - FCD - Artigos/Papers (with refereeing)

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