Device for heating components has heating element with Ohmic resistance and positive temperature coefficient element with resistance increasing exponentially above certain temperature

摘要

The device has a heating element (3) with an Ohmic resistance and a second heating element (4) with a positive temperature coefficient element (10) with resistance increasing exponentially above a certain temperature. The heating elements (3,4) are connected in parallel in a heating circuit. Control electronics (7) exclusively control the Ohmic resistance (11) depending on ambient temperature.