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The novel implantable stimulus driver for epileptic seizure suppression with low power design and adaptive loading consideration was proposed in this work. The stimulus driver consisted of the output stage, charge pump system, and adaptor can constantly provide 40-μA output stimulus currents, as the electrode impedance varies within 10~300 kΩ. The performances of this design have been successfully...
A high-voltage electrode driver dedicated to intracortical microstimulation is presented. It is intended to significantly increase the voltage swing in order to maintain constant current stimulation through high-impedance electrode-tissue contacts. Charge pumps are used to generate high-voltage supplies of 8.615 V and -8.348 V from 3.3 V with low ripples (less than 1.6 %) while driving a maximal stimulation...
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