Silicon carbide (SiC) inverters offer efficiency gains that extend well beyond peak operating points. This white paper presents measurements obtained at customer testing sites, examining how CISSOID’s SiC inverter technology compares with an IGBT-based system and what the results mean for electric drivetrain design. The paper explores performance across the operating range, including partial-load conditions, and explains how coordinated semiconductor, gate-driver, thermal and motor-control design delivers these gains. For engineers developing heavy-duty vehicles and industrial drives, the findings highlight opportunities to reduce cooling requirements, improve power density and lower system mass and energy consumption.

These are the key takeaways:

• Compare measured SiC and IGBT inverter efficiency, power and torque.
• Understand why partial-load efficiency matters in real duty cycles.
• Explore how gate drivers, cooling and motor control shape performance.
• Learn how lower losses and higher-voltage architectures can reduce drivetrain weight and cooling needs.