Demonstration of energy efficient SiC power module with low inductance

Purpose and goal

The aim and main goal of the project is to demonstrate a cost-effective construction method for power modules with silicon carbide (SiC) transistors. The construction method must allow low parasitic inductances, high power density and high working frequency. The main goal has been achieved in the project. An important sub-goal has been to design a demonstration system for the power module in a typical application. This has been done in the form of a fast charger for cars, 200 kW and high operating frequency (> 200kHz).

Expected results and effects

Construction of a SiC based power module has been completed. Construction method and performance have been evaluated relative to the project´s objective. The project results have been positive and led to the decision to move towards industrialization of the power module.

Planned approach and implementation

The project has been run in five parts / work packages with identified objectives, Requirements, Design, Purchasing, Prototype and Evaluation. All have been implemented, but project has been affected by the pandemic. Specifically, this applies to the supplier of module substrate. The selected supplier had to be replaced. A new supplier has been identified and the design is adapted. Prototypes are presently ordered but not yet delivered. Therefore, no physical prototypes was built and experimental evaluation has been substituted by calculations.