A method for feeding DC power to an amplifier module for a pulsed load, the method comprising providing current pulses from a DC power supply; charging a capacitor configuration in the amplifier module; providing an output voltage via a voltage regulated power supply; feeding current pulses to the pulsed load from the capacitor configuration, determining an output current (Iout) pulse configuration appearing during feeding the load from the capacitor configuration; providing a pulsed input current (Iin) from the DC power supply based upon the determined output pulsed current; and limiting the maximum current level of the input current pulses to a pre-determined level by a control and pulse shaping circuit to be substantially lower compared to the peak current of the output current pulses.