A high voltage, constant current stimulator for electrocutaneous stimulation through small electrodes

  title={A high voltage, constant current stimulator for electrocutaneous stimulation through small electrodes},
  author={C. J. Poletto and C. L. Van Doren},
  journal={IEEE Transactions on Biomedical Engineering},
A high-voltage stimulator has been designed to allow transcutaneous stimulation of tactile fibers of the fingertip. The stimulator's output stage was based upon an improved Howland current pump topology, modified to allow high load impedances and small currents, The compliance voltage of approximately 800 V is achieved using commercially available high-voltage operational amplifiers. The output current accuracy is better than /spl plusmn/5% over the range of 1 to 25 mA for 30 /spl mu/s or… CONTINUE READING
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