Abstract: The device of the invention serves for the temperature regulation of an element heated by means of a heat source and whose temperature is measured by means of a detector. Said device includes a digital processor supplying a programmed reference digital signal. It further comprises a D/A converter transforming said digital signal into an analog reference signal, a subtractor which receives this reference signal and the one supplied by the detector, an A/D converter transforming the difference signal .epsilon. into a digital signal, processing structure for elaborating a correction signal as a function of an anticipated energy difference and a power control circuit for the energy source responsive to said correction signal.