Charge compensation circuit for neural stimulation

A charge compensation circuit for neural stimulation, comprising:

• a detection circuit for detecting a total charge amount during one stimulation period of bidirectional pulse current signals generated by a current generator in a pulse current generation circuit;
• a judgment circuit for determining whether the total charge amount detected by the detection circuit exceeds a safe charge amount range;
• and
• a compensation circuit for generating a compensation pulse current signal with a net charge amount when the judgment circuit determines that the total charge amount exceeds the safe charge amount range, so that the total charge amount is within the safe charge amount range;
• wherein the charge compensation circuit is configured to determine whether to conduct charge compensation on the current generator according to the total charge amount during one stimulation period of the bidirectional pulse current signals generated by the current generator for neural stimulation to ensure that the total charge amount generated by the current generator is within the safe charge amount range.