Comparison of Si and SiC diodes during operationin three-phase inverter driving ac induction motor
- 7 June 2001
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 37 (12) , 787-788
- https://doi.org/10.1049/el:20010535
Abstract
4H-SiC JBS diodes have been used in an inverter circuit, driving an actual three-phase ac induction motor at power levels up to 2.2 HP. Switching waveforms were measured and compared between inverters based on Si PiN diodes and 4H-SiC MPS diodes. The results clearly show a significant reduction in power dissipation, in both the diode and the IGBT switch, when SiC diodes replace the Si diodes. The reduction is most evident at the higher temperatures.Keywords
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