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Interleaved Switch Harvesting on Inductor: Non-linear extraction, action and reaction
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Embedded Internet Systems Lab.ORCID iD: 0000-0003-1763-8978
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Embedded Internet Systems Lab.
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Embedded Internet Systems Lab.ORCID iD: 0000-0002-4133-3317
Number of Authors: 32016 (English)In: 2016 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings, Piscataway, NJ: IEEE Communications Society, 2016, p. 642-647, article id 7520439Conference paper, Published paper (Refereed)
Abstract [en]

The circuit presented in this paper provides increased transfer efficiency for the electric charge generated by a piezoelectric element to the storage device, it also enables a simplified active control circuitry required for switched harvesting solutions as the control transistors are referenced to ground. This is achieved by inverting the voltage potential across the piezoelectric element and thereby maintaining a higher voltage while extracting energy. The increased potential allows vibration harvesters to operate over a broader frequency range. For weakly coupled piezoelectric harvesters, the increased potential allows the electrical power output to be increased. In this paper, the circuit is simulated in SPICE using existing models of discrete components in conjunction with a model of a piezoelectric vibration harvester. The power output and mechanical behavior of the harvester using the presented circuit are compared to two existing technologies: Synchronous Switch Harvesting on Inductor (SSHI) and a full-wave rectifying bridge. The comparison demonstrates that the novel Interleaved Switch Harvesting on Inductor (ISHI) circuit outperforms state-of-the-art active harvesting solutions, e.g., SSHI, as a result of the decreased energy losses from diodes. In addition, the ISHI circuit requires fewer components than does the SSHI circuit and solves the floating transistor source issue that arises in SSHI implementations. To achieve the maximum power conversion efficiency, impedance matching is required, which can be achieved by controlling the voltage of the storage device

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Communications Society, 2016. p. 642-647, article id 7520439
Series
I E E E Instrumentation and Measurement Technology Conference. Proceedings, ISSN 1091-5281
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Industrial Electronics
Identifiers
URN: urn:nbn:se:ltu:diva-38164DOI: 10.1109/I2MTC.2016.7520439ISI: 000382523600114Scopus ID: 2-s2.0-84980383531Local ID: c7ab804b-e9e4-44c3-b234-cc3445dab6ddISBN: 9781467392204 (electronic)OAI: oai:DiVA.org:ltu-38164DiVA, id: diva2:1011663
Conference
International Instrumentation and Measurement Technology Conference : 23/05/2016 - 26/05/2016
Note

Validerad; 2016; Nivå 1; 2016-10-11 (andbra)

Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2018-09-06Bibliographically approved

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Häggström, FredrikGustafsson, JonasDelsing, Jerker

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