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This paper reports experimental zero voltage switching (ZVS) characteristics of the state-of-the-art 12 kV SiC N-IGBTs with 2 μm and 5 μm field-stop buffer layer thicknesses. Extensive results up to 7 kV and 150°C are presented for both IGBTs with and without an external snubber capacitor. The 12 kV SiC IGBTs have been found to have significantly larger magnitude of turn-off current bump in comparison...
In this paper, a comparative study of 1200V Silicon IGBTs with Silicon Carbide (SiC) MOSFETs is presented for a 6kVA single-phase 230V online Uninterruptible Power Supply (UPS) system. The UPS is first tested with the 1200V silicon IGBT/Diode devices (2 parallel 34A IGBT/diode) and then the inverter devices are replaced by next generation SiC 1200V MOSFET/Diode devices (2 parallel 20A MOSFET/10A Diode...
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