Title :
Concept of the bridge leg with mixed normally-ON & normally-OFF SiC JFETs
Author :
Rabkowski, Jacek ; Zdanowski, Mariusz ; Barlik, Roman
Author_Institution :
Inst. of Control & Ind. Electron., Warsaw Univ. of Technol., Warsaw, Poland
Abstract :
The paper presents a new concept of the power electronics inverter built with Silicon Carbide devices. In order to reduce problems with protection of the system with normally-ON JFETs, each bridge leg is built with mixed devices: normally-ON and normally-OFF. Due to lower on-state resistance and less complex driving of the normally-ON JFETs, proposed inverter offers better performance in comparison to the inverter built with normally-OFF JFETs only. Novel concept is verified by various experimental tests of the 2kVA H-bridge with special attention to safety issues.
Keywords :
JFET circuits; bridge circuits; invertors; junction gate field effect transistors; mixed analogue-digital integrated circuits; power electronics; power field effect transistors; apparent power 2 kVA; bridge leg concept; mixed normally-off silicon carbide JFET; mixed normally-on silicon carbide JFET; power electronics inverter; safety issues; silicon carbide devices; system protection; Bridge circuits; Inverters; JFETs; Logic gates; Silicon carbide; Switches;
Conference_Titel :
Compatibility and Power Electronics (CPE), 2013 8th International Conference on
Conference_Location :
Ljubljana
Print_ISBN :
978-1-4673-4911-6
DOI :
10.1109/CPE.2013.6601171
