signal to a setting device which in turn controls the voltage supply application_number US 63537603 A description for the purposes of promoting an understanding of the principles of the invention reference will now be made to the preferred embodiment illustrated in the drawings and specific language will be used to describe the same it will nevertheless be understood that no limitation of the scope of the invention is thereby intended such alterations and further modifications in the illustrated device and or method and such further applications of the principles of the invention as illustrated therein being contemplated as would normally occur now or in the future to one skilled in the art to which the invention relates 0014 fig2 shows the voltage regulator a controllable voltage source 9 arranged in the voltage regulator 10 is connected to the user 2 via connecting lines having the line resistances 4 the voltage is taken at the load resistor 3 of the user 2 and is supplied to the non inverting input of an op amplifier 11 allocated to the user 2 whereas a constant reference voltage source 12 lies at the inverting input the op amplifier 11 thus works as a comparator the output of the op amplifier 11 is connected via a sensor line 13 and a resistor 14 to the input of an inverting op amplifier 15 that is fedback via a.