1 research outputs found
Analysis of Passive Charge Balancing for Safe Current-Mode Neural Stimulation
Charge balancing has been often considered as one
of the most critical requirement for neural stimulation circuits.
Over the years several solutions have been proposed to precisely
balance the charge transferred to the tissue during anodic and
cathodic phases. Elaborate dynamic current sources/sinks with
improved matching, and feedback loops have been proposed with
a penalty on circuit complexity, area or power consumption.
Here we review the dominant assumptions in safe stimulation
protocols, and derive mathematical models to determine the
effectiveness of passive charge balancing in a typical application
scenario