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Target Applications

Automotive, High-Power, High-Performance SiC Traction Inverter Reference Design

Features & Specification

• Real-time, variable gate drive strength features enable improved system efficiency by minimizing the SiC switching power losses and the accurate bias supply minimizes conductive losses.
• Isolated gate drivers, bias supply modules, and highly integrated voltage sensing devices for the direct connection to the high-voltage source significantly reduce PCB area.
• High-performance microcontroller (MCU) with three C29 real-time digital signal processor (DSP) cores enable motor control loop to help minimize torque ripple and to provide smooth speed and torque current profiles to the traction motor.
• UCC5880-Q1 and F29H859TU-Q1 are Functional Safety-Compliant devices.
• Enhanced system-reliability rated with reinforced capacitive isolation technology and early failure detection.

Description

TIDM-02014 is a 800-V, 300kW SiC-based traction inverter system reference design developed by Texas Instruments and Wolfspeed provides a foundation for OEMs and design engineers to create high-performance, high-efficiency traction inverter systems and get to market faster. This solution demonstrates how the traction inverter system technology from TI and Wolfspeed improves system efficiency by reducing the overshoot in available voltages with a high-performance isolated gate driver and real-time variable gate drive strength driving the Wolfspeed SiC power module. The isolated gate driver coupled with TI’s isolated bias supply solution significantly reduces the PCB size providing more than 2X smaller PCB area, less than 4mm height and eliminating 30+ discrete components improving system power density. TI’s high-control performance MCUs featuring tightly-integrated, innovative real-time peripherals enable effective traction motor control even at speeds greater than 20,000 RPM. Fast current loop implementation helps minimize motor torque ripple and provides smooth speed-torque profiles. The mechanical and thermal design of the system is provided by Wolfspeed.

TIDM-02014 Board Overview

TIDM-02014 Block Diagram

Relevant Links

Useful links regarding the reference design are provided below:

Steps to Run the Example

• Give 12V, 1 Amp power supply to the revD control_board
• Load the firmware in MCU and start running the code
• Once the code is running properly (can be understood if all the red leds on the gate drivers boards are turened off), turn on DC bus voltage supply
• Then the parameter values need to be updated as per the choice of control mode as shown below.
• For fastest standalone performence, it is recomended to run in "FLASH_O3" configuration

Quick guide to run the example in different modes mentioned below:

Attention

Please add the mentioned variables in the "watch window"

• It's strongly recommended to first read through the User Guide/Software Guide for any specific setup instructions and hazard warnings before proceeding.
• To import CCS projects, either import via the button above or mannually select the file directory where this solutions resides.
• Build the project within the CCS project menu, then launch a CCS debug session and run the executable.

Release Notes

Shown below lists all the software revision history for this reference design:

Hardware design files

For EVM design files such as schematics, BOM, PCB layouts & assembly files, please visit TI design webpage from the link above.

Help and Support

For additional help and support, please visit E2E™ design support forum