CISSOID’s new SiC Inverter Control Modules for EVs

March 04, 2024

CISSOID has launched a new series of SiC Inverter Control Modules (ICMs) specifically for the EV market. The software-powered SiC ICMs are designed to assist engineers in developing robust, functionally safe, and modular e-motor drives, while significantly reducing time-to-market.

The CXT-ICM3SA series integrates CISSOID’s existing line of 3-phase 1200V/340A-550A SiC MOSFET Intelligent Power Modules (IPMs) with an OLEA T222 Field Programmable Control Unit (FPCU) control board and OLEA APP INVERTER application software. This integration is supplied in partnership with Silicon Mobility.

Depending on the selected ICM product, this modular core engine can power and control high-voltage SiC traction inverters with battery voltages up to 850V, output power exceeding 350kW, and peak efficiency above 99%.

The integration of these components addresses EMC issues often caused by fast-switching SiC transistors, supports various modulation schemes such as SVPWM or DPWM, and offers advanced motor control algorithms, including Field Oriented Control (FOC) and Flux Weakening management.

CISSOID is also offering a complete SiC inverter reference design that allows for motor bench testing of the ICM along with key peripheral elements like current sensors, a high-performance DC-Link capacitor, and an EMI filter. The ICM efficiently supports the drive of high-speed motors, combining CISSOID’s low losses SiC power module with the ultra-fast real-time FPCU, enabling high switching frequencies up to 50kHz. This application-specific processor dedicated to e-motor control accelerates the response time to critical events, off-loading the processor cores and enhancing functional safety.

Both the FPCU and the control software are ISO-26262 ASIL C/D certified and AUTOSAR 4.3 compliant.