Method for operating an apparatus for wirelessly transferring energy in the direction of an electrical consumer by means of inductive coupling, wherein the apparatus comprises: - a rectifier for generating a DC voltage from a power supply system voltage, - an inverter fed from the DC voltage and configured to generate a pulse-width-modulated drive signal, and - a coil driven by means of the pulse-width-modulated drive signal, by means of which coil an alternating magnetic field is generatable for the purpose of transferring the energy, wherein the method comprises the following steps: - controlling an electrical actual power output by the inverter to a predefinable electrical target power, wherein a frequency and a duty cycle of the pulse-width-modulated drive signal serve as manipulated variables of the control, - characterized in that the following steps are carried out for the purpose of adjustment to the target power: a) setting a start frequency (f_0), b) setting a start duty cycle (DC_1) in such a way that the target power is undershot, c) measuring an electrical actual power output by the inverter in the case of the start frequency (f_0) set and the start duty cycle (DC_1) set, d) choosing an adjustment target power which is less than or equal to the target power, e) calculating a duty cycle (DC_2) which computationally corresponds to the adjustment target power, f) setting the calculated duty cycle (DC_2), g) measuring an electrical actual power output by the inverter in the case of the frequency (f_0) set and the duty cycle (DC_2) set, and h) repeating steps d) to g) with increasing adjustment target power until a deviation between the target power and the actual power falls below a predefined threshold, - wherein in step e) the duty cycle (DC_3) which computationally corresponds to the adjustment target power is calculated on the basis of the duty cycle (DC_2) calculated in the preceding step e), the actual power measured in the preceding step g) and the adjustment target power. - a rectifier for generating a DC voltage from a power supply system voltage, - an inverter fed from the DC voltage and configured to generate a pulse-width-modulated drive signal, and - a coil driven by means of the pulse-width-modulated drive signal, by means of which coil an alternating magnetic field is generatable for the purpose of transferring the energy, - controlling an electrical actual power output by the inverter to a predefinable electrical target power, wherein a frequency and a duty cycle of the pulse-width-modulated drive signal serve as manipulated variables of the control, - characterized in that the following steps are carried out for the purpose of adjustment to the target power: a) setting a start frequency (f_0), b) setting a start duty cycle (DC_1) in such a way that the target power is undershot, c) measuring an electrical actual power output by the inverter in the case of the start frequency (f_0) set and the start duty cycle (DC_1) set, d) choosing an adjustment target power which is less than or equal to the target power, e) calculating a duty cycle (DC_2) which computationally corresponds to the adjustment target power, f) setting the calculated duty cycle (DC_2), g) measuring an electrical actual power output by the inverter in the case of the frequency (f_0) set and the duty cycle (DC_2) set, and h) repeating steps d) to g) with increasing adjustment target power until a deviation between the target power and the actual power falls below a predefined threshold, a) setting a start frequency (f_0), b) setting a start duty cycle (DC_1) in such a way that the target power is undershot, c) measuring an electrical actual power output by the inverter in the case of the start frequency (f_0) set and the start duty cycle (DC_1) set, d) choosing an adjustment target power which is less than or equal to the target power, e) calculating a duty cycle (DC_2) which computationally corresponds to the adjustment target power, f) setting the calculated duty cycle (DC_2), g) measuring an electrical actual power output by the inverter in the case of the frequency (f_0) set and the duty cycle (DC_2) set, and h) repeating steps d) to g) with increasing adjustment target power until a deviation between the target power and the actual power falls below a predefined threshold, - wherein in step e) the duty cycle (DC_3) which computationally corresponds to the adjustment target power is calculated on the basis of the duty cycle (DC_2) calculated in the preceding step e), the actual power measured in the preceding step g) and the adjustment target power.