Apparatus for generating pulse-duration-modulated control signals for at least two control channels (CH0,..., CH31), having - a signal data determination device for determining signal data representing the profile of the control signal for each of the control channels (CH0,..., CH31), and - a memory device for storing the signal data, - a control signal generation device for generating the pulse-duration-modulated control signals, - the signal data determination device being designed to determine the signal data for one period (0-T) of the pulse-duration-modulated control signals and to stipulate the time of the pulse rise of at least one pulse-duration-modulated control signal such that it is offset with respect to the time of the pulse rise of at least one further pulse-duration-modulated control signal, - the memory device being designed to store the signal data in the form of time-discrete control signal data for all control channels (CH0,..., CH31), - the control signal generation device being designed to generate the pulse-duration-modulated control signals on the basis of the signal data stored in the memory device, - the signal data determination device being designed to group the control channels (CH0,..., CH31) into at least two control channel groups (G1,..., G4), the number of control channels combined in one control channel group (G1,..., G4) being at least two, and the signal data determination device also being designed to stipulate the times of the pulse rise of each of the control signals within a control channel group (G1,..., G4) such that they are offset with respect to the times of the pulse rises of the respective other control signals within this control channel group (G1,..., G4), the interval of time between the pulse rises of the control signals within a control channel group (G1,..., G4) being constant, and control channels from different control channel groups (G1,..., G4) switching at the same time. - a signal data determination device for determining signal data representing the profile of the control signal for each of the control channels (CH0,..., CH31), and - a memory device for storing the signal data, - a control signal generation device for generating the pulse-duration-modulated control signals, - the signal data determination device being designed to determine the signal data for one period (0-T) of the pulse-duration-modulated control signals and to stipulate the time of the pulse rise of at least one pulse-duration-modulated control signal such that it is offset with respect to the time of the pulse rise of at least one further pulse-duration-modulated control signal, - the memory device being designed to store the signal data in the form of time-discrete control signal data for all control channels (CH0,..., CH31), - the control signal generation device being designed to generate the pulse-duration-modulated control signals on the basis of the signal data stored in the memory device, - the signal data determination device being designed to group the control channels (CH0,..., CH31) into at least two control channel groups (G1,..., G4), the number of control channels combined in one control channel group (G1,..., G4) being at least two, and the signal data determination device also being designed to stipulate the times of the pulse rise of each of the control signals within a control channel group (G1,..., G4) such that they are offset with respect to the times of the pulse rises of the respective other control signals within this control channel group (G1,..., G4), the interval of time between the pulse rises of the control signals within a control channel group (G1,..., G4) being constant, and control channels from different control channel groups (G1,..., G4) switching at the same time.