Current stimulation utilizing active charge balance phase

A medical device (100) for electrical stimulation, the medical device (100) comprising:

• an electric circuitry configured to perform active charge compensation, the electric circuitry being connectable to at least one electrode arrangement (102) for electrical stimulation,
• wherein the electric circuitry includes:
• (i) monitoring means configured to monitor at least one voltage associated with a stimulation network (108, 116),
• (ii) at least one variable resistive element (206, 208, 1300) configured to provide a voltage drop used in the active charge compensation, and
• (iii) adjustment means (202) configured to dynamically adjust a resistance value of the at least one variable resistive element (206, 208, 1300) throughout a duration of the active charge compensation based on the at least monitored voltage,
• wherein the adjustment means (202) is configured to:
• during an adjustment phase, incrementally increase the resistance value when the monitored voltage exceeds a predetermined threshold until no voltage excursion is detected;
• and
• during an optimization phase, incrementally decrease the resistance value when no voltage excursion is detected to reduce power consumption while maintaining safe operation.