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Current Source for Multifrequency Broadband Electrical Bioimpedance Spectroscopy Systems: A Novel Approach
School of Engineering, University College of Borås.ORCID iD: 0000-0002-6995-967X
Department of Electronic Engineering, Technical University of Catalonia.
School of Engineering, University College of Borås.
2006 (English)In: 2006 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Vols 1-15, 2006, 5121-5125 p.Conference paper (Refereed)
Abstract [en]

New research and clinical applications of broadband electrical bioimpedance spectroscopy arise; increasing the upper limit frequency used in the measurement systems. The current source, an essential block of an electrical bioimpedance impedance analyzer, must have a large-enough output impedance at any frequency of operation to keep the output current constant regardless of the value of working load. In this paper a novel approach to increase the output impedance of a common voltage controlled current source is proposed. The circuit is analyzed, implemented and tested. The results, remarking the significant effect of the circuit parasitic capacitances, show a clear increment of the output impedance, but smaller than the originally expected

Place, publisher, year, edition, pages
2006. 5121-5125 p.
Keyword [en]
active networks, bioelectric potentials, biomedical measurement, electric impedance imaging, electric impedance measurement, power supplies to apparatus, circuit parasitic capacitance effect, common voltage controlled current source, electrical bioimpedance impedance analyzer, measurement system, multifrequency broadband electrical bioimpedance spectroscopy, output impedance, working load
National Category
Medical Laboratory and Measurements Technologies
URN: urn:nbn:se:kth:diva-74135DOI: 10.1109/IEMBS.2006.259566ISI: 000247284701017ISBN: 1-4244-0032-5ISBN: 978-1-4244-0032-4OAI: diva2:489327
28th Annual International Conference of the IEEE-Engineering-in-Medicine-and-Biology-Society. New York, NY. AUG 30-SEP 03, 2006
QC 20120202Available from: 2012-02-02 Created: 2012-02-02 Last updated: 2012-02-03Bibliographically approved

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Seoane, FernandoLindecrantz, Kaj
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