System and method for electrical pulse charge compensation for implantable medical device capacitance loading effects

A neurostimulation device, comprising:

• a plurality of electrical terminals configured for being respectively coupled to a plurality of stimulation electrodes implanted within tissue of a patient;
• stimulation output circuitry configured for delivering time-varying electrical current to at least one of the electrodes via the respective at least one electrical terminal, the stimulation output circuitry including a shunt capacitance coupled to one of the electrodes via the respective one electrical terminal that would, without compensation, absorb charge from or inject charge into the tissue in response to time-varying changes in the delivered electrical current, thereby causing an uncompensated electrical waveform to be delivered to the tissue adjacent the one electrode;
• and
• a controller configured for directing the stimulation output circuitry to at least partially compensate for the absorbed or injected charge, thereby causing a compensated electrical waveform to be delivered to the tissue adjacent the one electrode.