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Simple voltage-controlled current source for wideband electrical bioimpedance spectroscopy: circuit dependences and limitations

Author
Seoane, F.; Macías, R.; Bragos, R.; Lindecrantz, K.
Type of activity
Journal article
Journal
Measurement science and technology
Date of publication
2011
Volume
22
Number
11
First page
1
Last page
11
DOI
https://doi.org/10.1088/0957-0233/22/11/115801 Open in new window
Repository
http://hdl.handle.net/2117/14384 Open in new window
URL
http://iopscience.iop.org/0957-0233/22/11/115801/pdf/0957-0233_22_11_115801.pdf Open in new window
Abstract
In this work, the single Op-Amp with load-in-the-loop topology as a current source is revisited. This circuit topology was already used as a voltage-controlled current source (VCCS) in the 1960s but was left unused when the requirements for higher frequency arose among the applications of electrical bioimpedance (EBI). The aim of the authors is not only limited to show that with the currently available electronic devices it is perfectly viable to use this simple VCCS topology as a working curren...
Citation
Seoane, F. [et al.]. Simple voltage-controlled current source for wideband electrical bioimpedance spectroscopy: circuit dependences and limitations. "Measurement science and technology", 2011, vol. 22, núm. 11, p. 1-11.
Keywords
current source, electrical biompedance spectroscopy, operational amplifers
Group of research
CREB - Biomedical Engineering Research Centre
IEB - Electronic and Biomedical Instrumentation

Participants

  • Seoane, F.  (author)
  • Macías Macías, Raul  (author)
  • Bragos Bardia, Ramon  (author)
  • Lindecrantz, K.  (author)