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

fYear

2013

fDate

5-7 June 2013

Firstpage

286

Lastpage

291

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Compatibility and Power Electronics (CPE), 2013 8th International Conference on

Conference_Location

Ljubljana

ISSN

2166-9538

Print_ISBN

978-1-4673-4911-6

Type

conf

DOI

10.1109/CPE.2013.6601171

Filename

6601171