Arrangement with a potential-isolated current supply device, of which the regulation of the output voltage (Ua) is based on pulse width modulation and which comprises: an input side, an output side which is potential-isolated from the input side, an input to apply an input voltage (Ue) on the input side, an output which is potential-isolated from the input for outputting a regulated output voltage (Ua) on the output side and a pulse width modulation device on the input side of the current supply device, characterised in that - the arrangement on the input side has a controllable clock generation device which is associated with the pulse width modulation device, and which serves to generate a clock signal (fk(t)) for the pulse width modulation device and the clock signal (fk(t)) of which has a working frequency spectrum which can be controlled from the input side, and - the arrangement on the output side has a working frequency evaluation unit which determines the working frequency spectrum of the pulse width modulation device on the basis of the output voltage (Ua) and/or output current (Ia) of the current supply device or of a variable correlating with the output voltage (Ua) or the output current (Ia) and, as a function of the respectively determined working frequency spectrum, activates at least one load component (300, 400, 500, 600) on the output side or deactivates or commutates at least one load component (300, 400, 500, 600) already connected on the output side. an input side, an output side which is potential-isolated from the input side, an input to apply an input voltage (Ue) on the input side, an output which is potential-isolated from the input for outputting a regulated output voltage (Ua) on the output side and a pulse width modulation device on the input side of the current supply device, characterised in that - the arrangement on the input side has a controllable clock generation device which is associated with the pulse width modulation device, and which serves to generate a clock signal (fk(t)) for the pulse width modulation device and the clock signal (fk(t)) of which has a working frequency spectrum which can be controlled from the input side, and - the arrangement on the output side has a working frequency evaluation unit which determines the working frequency spectrum of the pulse width modulation device on the basis of the output voltage (Ua) and/or output current (Ia) of the current supply device or of a variable correlating with the output voltage (Ua) or the output current (Ia) and, as a function of the respectively determined working frequency spectrum, activates at least one load component (300, 400, 500, 600) on the output side or deactivates or commutates at least one load component (300, 400, 500, 600) already connected on the output side. - the arrangement on the input side has a controllable clock generation device which is associated with the pulse width modulation device, and which serves to generate a clock signal (fk(t)) for the pulse width modulation device and the clock signal (fk(t)) of which has a working frequency spectrum which can be controlled from the input side, and - the arrangement on the output side has a working frequency evaluation unit which determines the working frequency spectrum of the pulse width modulation device on the basis of the output voltage (Ua) and/or output current (Ia) of the current supply device or of a variable correlating with the output voltage (Ua) or the output current (Ia) and, as a function of the respectively determined working frequency spectrum, activates at least one load component (300, 400, 500, 600) on the output side or deactivates or commutates at least one load component (300, 400, 500, 600) already connected on the output side.