SiC Reference Designs Simplify Three-Phase Inverter Development

Silicon carbide (SiC) power devices are increasingly used in high-efficiency power conversion systems but often require complex thermal and drive circuit design. In this context, ROHM introduced three reference designs for three-phase inverters based on its EcoSiC™ power modules.

Reference platforms for high-power inverter engineering
The reference designs REF68005, REF68006 and REF68004 are intended to support development of three-phase inverter circuits using ROHM EcoSiC™ molded modules including HSDIP20, DOT-247 and TRCDRIVE pack™ packages.

The designs provide circuit data and evaluation board information to help engineers develop drive circuit boards and reduce engineering time required for device evaluation and integration. The approach is relevant for applications such as electric mobility systems, industrial drives and high-power energy conversion equipment.

The reference platforms are designed for output power levels up to the 300 kW class, positioning them for use in high-power applications across automotive electrification and industrial automation environments.

Addressing integration complexity in SiC power electronics
SiC devices are used in power electronics because of their switching performance and efficiency advantages compared with conventional silicon devices. However, integrating these devices often increases the engineering effort required for peripheral circuit design, gate driving and thermal management.

The reference designs aim to simplify this process by providing validated circuit configurations and design data. This can help engineering teams shorten development cycles and reduce risks during early design phases of inverter systems used in electrified powertrains and industrial power conversion.

Compatible SiC modules are available through electronics distributors including DigiKey and Farnell, supporting access to evaluation hardware during design implementation.




Simulation and thermal design support for faster evaluation
Additional engineering resources are provided through ROHM’s support ecosystem, including simulation tools and thermal design guidance to assist with component selection and system validation.

Design data for evaluation boards is available through the reference design documentation, while module specifications are provided through the respective product documentation.

ROHM also provides the ROHM Solution Simulator, a system-level simulation environment intended to support component selection and performance verification during early development stages. This type of model-based validation is increasingly used in power electronics development workflows supporting electrification and the broader digital supply chain of power semiconductor components.

Edited by industrial journalist, Aishwarya Mambet, with AI-assistance.

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