Switching performance comparison of a power switch in a Cascode Configuration using a SuperJunction MOSFET
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Abstract:
This paper is focused on the analysis of the cascode connection of Superjunction MOSFETs (SJ-FET) working as a high voltage normally-off power switch, based on Silicon technologies. In order to carry out this analysis, it will compare the cascode structure with the standalone connection, in which only one SJ-FET is used. The comparison is carried out in terms of switching behaviour, in order to verify if the cascode has a faster switching than a directly controlled SJ-FET. Experimental measurements are presented for both topologies working on a boost converter with an input voltage of 150 V, output voltage of 400 V, power range between 100 W and 400 W and a switching frequency range between 100 kHz and 400 kHz. Finally, an analysis of losses on the boost converter for both topologies is included
This paper is focused on the analysis of the cascode connection of Superjunction MOSFETs (SJ-FET) working as a high voltage normally-off power switch, based on Silicon technologies. In order to carry out this analysis, it will compare the cascode structure with the standalone connection, in which only one SJ-FET is used. The comparison is carried out in terms of switching behaviour, in order to verify if the cascode has a faster switching than a directly controlled SJ-FET. Experimental measurements are presented for both topologies working on a boost converter with an input voltage of 150 V, output voltage of 400 V, power range between 100 W and 400 W and a switching frequency range between 100 kHz and 400 kHz. Finally, an analysis of losses on the boost converter for both topologies is included
Description:
51st International Universities' Power Engineering Conference, 6-9 September 2016, Coimbra (Portugal)
Patrocinado por:
Government of Spain through projects DPI2013-47176-C2-2-R, MINECO-15-DPI2014-56358-JIN and the grants FPU14/03268 and FPI BES-2014-070785 and through funding from the Government of Asturias through the project FC-15-GRUPIN14-143 and FEDER funds
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