Tissue- or neurostimulator, comprising a power supply (Vdd) and an implantable pulse generator (IPG) powered by said power supply (Vdd) to which an electrode or electrodes are connected or connectable for delivery of pulses from the pulse generator to a patients region of interest or tissue so as to provide said region of interest or tissue with electrical stimulation, which pulse generator comprises a switching cir- cuit providing an intermittent connection with the electrode or electrodes, wherein the pulse generator comprises at least one inductor (L) for storing of energy from the power supply (Vdd) and subsequent release to the patients region of inter- est or tissue through the electrode or electrodes.
