The efficacy of the BaSIC topology for enhancing the short-circuit capability of silicon carbide power MOSFETs is described. The short-circuit withstand time for the SiC power MOSFETs can be improved by using a gate source shorted (GSS) silicon depletion mode MOSFET (DMM) as the non-linear current limiting element. Trade-off curves between the short-circuit withstand time and the increase in on-resistance and switching energy loss achieved with the BaSIC(DMM) topology were obtained using 1.2 kV SiC power MOSFETs.

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BaSIC(DMM) for SiC Power MOSFETs

  • B. Jayant Baliga,
  • Ajit Kanale

摘要

The efficacy of the BaSIC topology for enhancing the short-circuit capability of silicon carbide power MOSFETs is described. The short-circuit withstand time for the SiC power MOSFETs can be improved by using a gate source shorted (GSS) silicon depletion mode MOSFET (DMM) as the non-linear current limiting element. Trade-off curves between the short-circuit withstand time and the increase in on-resistance and switching energy loss achieved with the BaSIC(DMM) topology were obtained using 1.2 kV SiC power MOSFETs.