| Abstract |
Using conventional fast thyristors in current-fed resonant inverters, maximum frequency is limited to about 10 kHz due to turn-off delay time tq. Increasing the maximum frequency needs composite switches having thyristor function, made by serie connexion of a diode and a high speed controlled device (IGBT, GTO, BJT or MOS). This paper presents a power hybrid module including a cascode switch, its antisaturated driver circuit and a serie connnected diode. Design of the module is presented considering the electrical, thermal and technological problems. Results of a 10 A - 1000V module in current-fed resonant converter working in the range 100 - 300 kHz are shown. |
