Stimulus Current Source with Large Voltage Compliance

From the analysis of required operating voltage in chapter 4, the head room of stimulus current source dominates the required operating voltage while tissue impedance is low. Thus, power consumption of stimulus driver can be further minimized by improving current source of stimulus driver. By gaining large voltage compliance close to the fixed power supply, the required operating voltage of bias circuit is lower; thus, required operating voltage can be dominated by tissue impedance and stimulus current thoroughly and power consumption is fewer.

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Vita