A laboratory testing and driving system for AIROF microelectrodes

N R Srivastava; P R Troyk; S F Cogan

doi:10.1109/IEMBS.2004.1404190

A laboratory testing and driving system for AIROF microelectrodes

Conf Proc IEEE Eng Med Biol Soc. 2004:2004:4271-4. doi: 10.1109/IEMBS.2004.1404190.

Authors

N R Srivastava¹, P R Troyk, S F Cogan

Affiliation

¹ Illinois Institute of Technology, Chicago, IL, USA.

PMID: 17271248
DOI: 10.1109/IEMBS.2004.1404190

Abstract

The charge-injection currents of AIROF (activated iridium oxide film) microelectrodes, which are subjected to charge-balanced biphasic pulsing or monophasic current pulsing, have to be limited such that the anodic and cathodic voltage excursions are kept within safe limits of operation. In earlier studies it has been shown that when using anodic bias asymmetry in the magnitude of the balanced biphasic waveform can be used to increase the charge injection capacity of AIROF electrodes. We present the design of a single-channel testing and driving system for laboratory testing and driving of AIROF microelectrodes within safe charge-injection limits.