Abstract: Method and circuit arrangement for commutation of a multiple winding electric motor. Particularly when they are operated with square-wave signals, multiple winding electric motors require effective interference voltage suppression for many applications. The invention specifies a method and a circuit arrangement by means of which trapezoidal waveform control signals are produced upstream of the respective output amplifiers, so that the motor is driven with low impedance, as a result of which there is no need for additional suppression means. The trapezoidal waveform control signals are composed of an operating voltage or a corresponding signal, a reference potential and a triangular waveform ramp voltage, using switching means.