Si/SiC Modules for Power Converters

In this Phase II effort we propose to develop a 1200V, combination silicon IGBT/ silicon carbide diode module based on the package selected for the diodes developed in Phase I. The module would be targeted for future military hybrid vehicle motor drives and dc/dc converters operating from the presently planned 600V to 750V bus. The main benefit of the combination switch module with SiC freewheeling diodes is the absence of diode reverse current, reducing the power converter switching losses by an estimated 40-50%. We propose to develop the module for production at an independent packaging house, build a pre-production lot of modules, and perform product qualification testing using the pre-production lot.