Control device for at least one electromechanical brake force booster of a brake system of a vehicle, having an electronics device which is configured to output at least one control signal to a motor of the electromechanical brake force booster taking into consideration at least one braking specification signal which is output to the electronics device and which relates to a braking demand from a driver of the vehicle and/or from an automatic speed control system of the vehicle; wherein the electronics device is additionally configured to set a setpoint motor force of the motor of the electromechanical brake force booster , or a setpoint braking input force (F 0 ) of the electromechanical brake force booster into a master brake cylinder of the brake system, which master brake cylinder is connected downstream of the electromechanical brake force booster , taking into consideration at least the braking specification signal ; and set a setpoint rotational speed (ω 0 ) of the motor of the electromechanical brake force booster taking into consideration a force difference (ΔF) between the set setpoint motor force and an estimated or measured actual motor force (F sup ) of the motor of the electromechanical brake force booster or between the set setpoint braking input force (F 0 ) and an estimated or measured actual braking input force (F estimated ) of the electromechanical brake force booster into the downstream master brake cylinder, and output the at least one control signal to the motor of the electromechanical brake force booster taking into consideration the set setpoint rotational speed (ω 0 ); characterized in that the electronics device is additionally configured to set the setpoint rotational speed (ω 0 ) of the motor of the electromechanical brake force booster taking into consideration the force difference (ΔF) such that a magnitude of the set setpoint rotational speed (ω 0 ) is always greater than or equal to a predefined non-zero minimum rotational speed magnitude (ω min ) . an electronics device which is configured to output at least one control signal to a motor of the electromechanical brake force booster taking into consideration at least one braking specification signal which is output to the electronics device and which relates to a braking demand from a driver of the vehicle and/or from an automatic speed control system of the vehicle; wherein the electronics device is additionally configured to set a setpoint motor force of the motor of the electromechanical brake force booster , or a setpoint braking input force (F 0 ) of the electromechanical brake force booster into a master brake cylinder of the brake system, which master brake cylinder is connected downstream of the electromechanical brake force booster , taking into consideration at least the braking specification signal ; and set a setpoint rotational speed (ω 0 ) of the motor of the electromechanical brake force booster taking into consideration a force difference (ΔF) between the set setpoint motor force and an estimated or measured actual motor force (F sup ) of the motor of the electromechanical brake force booster or between the set setpoint braking input force (F 0 ) and an estimated or measured actual braking input force (F estimated ) of the electromechanical brake force booster into the downstream master brake cylinder, and output the at least one control signal to the motor of the electromechanical brake force booster taking into consideration the set setpoint rotational speed (ω 0 ); characterized in that the electronics device is additionally configured to set the setpoint rotational speed (ω 0 ) of the motor of the electromechanical brake force booster taking into consideration the force difference (ΔF) such that a magnitude of the set setpoint rotational speed (ω 0 ) is always greater than or equal to a predefined non-zero minimum rotational speed magnitude (ω min ) . <EOS>