Reference design delivers a three-phase inverter board using 1200V silicon carbide MOSFETs to drive AC 440V motors in industrial power applications.
Toshiba Electronic Devices & Storage Corporation has developed a reference design for a three-phase inverter using 1200 V silicon carbide (SiC) MOSFETs. Intended for industrial motor drive applications, the design is intended to drive AC 440 V motors and combines optimised silicon carbide MOSFETs and supporting analogue components with supporting analogue components to simplify inverter development. Complete design resources are also provided to help engineers accelerate product development.
In the reference design, the inverter board accepts a DC input voltage between 530 V and 670 V and delivers a three-phase AC output of 340 V and 440 V at up to 15 A. The size of the inverter board is 250 mm × 145 mm and incorporates Toshiba’s silicon carbide MOSFETs together with photocouplers, operational amplifiers and other supporting components to achieve efficient motor control.
Designed to drive industrial AC motors and includes comprehensive fault detection functions to increase the system reliability. Such detection functions include overcurrent detection for U, V and W phase currents, bus overvoltage detection, bus overcurrent detection and overtemperature detection on two channels. These protection features enable rapid fault detection and protect both the inverter and the connected motor.
It is designed to work with a compatible AC-DC power supply stage that accepts a three-phase AC input of 340 V to 440 V up to 16 A and generates a DC output of 530 V to 600 V for the inverter stage. This configuration provides a complete motor drive solution for evaluating high-voltage power conversion systems based on silicon carbide power devices.
Toshiba provides the reference design with reference and design guides, schematics, PCB layout files, bills of materials and PCB fabrication data, as well as editable design files for several electronic design automation programs. By combining a high-voltage inverter platform with comprehensive design documentation, the reference design provides a practical foundation for developing industrial motor drives and power conversion systems.
For more information, click here.