Low power converter for high temperature applications

This paper covers the analysis from 20°C to 185°C of the realisation bases and behaviour of a low power 220 V AC/15 V DC converter. The study shows the evolution of the converter components and elements versus temperature. The devices are tested alone and inside their environment. After the choice of the power supply structure, the authors propose rules, remarks and cautions for such a type of converter for low and high temperature electronics. This field and its applications enable realisations of high-temperature systems while allowing the reduction of cooling devices for ambient atmosphere. The authors use a 20 W power supply for 400 hours at 185°C; then for 100 hours at 200°C