A method, device, telephone and base station to provide an effective servo control power converter for variable signals

A method (300, 400), means (100, 200), telephone (200) and base station (200) provide an effective servo control power converter ready for variable signals. The servo control power converter comprises a feedback feedforward control unit (120) which is connected to receive a reference signal and to at least receive a feedback signal and which is used for determining an optimum control signal according to a predetermined scheme, a pulse width modulation unit (116) to the feedback feedforward control unit (120) is connected, and is used to modify a duty ratio so as to provide a switching signal, and a power converter (102) which is connected to the Impulbbreitenmodulationseinheit (116) and connected to a power source, and used to provide the dynamic variabalen output signal becomes.