Device for controlling heat power of electrical heating device for heating breathing hose to supply breathing air to anesthetic patient, has measuring signal evaluation device generating modification signal corresponding to measuring signal

摘要

The device has a switching device controlled by switching control signals (29, 31), and a heating device supplying heat voltage derived from supply voltage of a supply voltage source. A measuring device (V) supplies a measuring signal (25) corresponding to an updated supply voltage value. A measuring signal evaluation device (23) generates a modification signal (27) corresponding to the measuring signal, where the modification signal causes the control signals to control the switching device for maintaining heat power compensated with respect to voltage fluctuations of the voltage source.