Patent ID: 8264275

Claim:
An amplifier arrangement, comprising: an amplifier input; an amplifier output; a signal-processing element with a first input that is coupled with the amplifier input for feeding an input signal, a second input for feeding a feedback signal, a control input for feeding a control signal, and an integrator element that is coupled on the input side with the first and second input and on the output side with an output of the signal-processing element, wherein the signal-processing element is adapted to set a respective level of the input signal and/or the feedback signal as a function of the control signal; a pulse modulator that is adapted to generate a pulse signal on a pulse output as a function of a signal applied on the output of the signal-processing element; an output stage with a switching element that is adapted to connect supply-voltage terminals to an output terminal that is coupled with the amplifier output and the second input, and a control unit for driving the switching element that is coupled with the pulse output; a level control unit that is designed to generate the control signal such that the respective level in the signal-processing element is reduced as a function of an overshooting of a specified pulse-duty factor of a pulse signal on the pulse output; and wherein the level control unit is coupled with the pulse output and is adapted to determine a pulse-duty factor of the pulse signal and to compare it with the specified pulse-duty factor.