SiC power module boosts inverter efficiency

14th October 2014
Source: Cree
Posted By : Mick Elliott
SiC power module boosts inverter efficiency

A 1.2kV all-SIC six pack module enables an increase in the power rating of inverters to 50 per cent while reducing power losses by 50 per cent to increase efficiency by 5 per cent. The device is based on Cree’s C2M SiC MOSFET and Z-Rec SiC Schottky diode technology. The all-SiC 1.2 kV, 20A six-pack features the industry’s lowest switching losses due to the zero turn-off tail current in the MOSFET and the zero reverse recovery current in the Schottky diode.

When compared to similar Si IGBT modules, the 20A six-pack module operates at a much lower junction temperature allowing designers to aggressively pursue new paradigms in high frequency and power density without compromising on efficiency.

Cummins, a global power leader in electrical power generation systems, has tested and confirmed the capabilities of Cree’s all-SiC 1.2kV six-pack power module family in their inverter platform.   Furthermore, engineers at Cummins are working to integrate and exploit these capabilities with their next generation, high efficiency products.

"Cree SiC power products consistently allow our customers to overcome age-old design challenges and achieve superior system level performance that is simply not possible with Si-based systems," said Cengiz Balkas, general manager and vice president, Cree Power and RF. "The results achieved by Cummins with our new all-SiC six-pack modules enable the high performance required to develop efficient and cost-effective next-generation power conversion products."

The power module (part number CCS020M12CM2) and companion gate driver evaluation board (CGD15FB45P) are available at authorised distributors, including Mouser, Digi-Key, and Richardson RFPD/Arrow RF & Power.

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