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HEV/EV inverter & motor control

Traction inverter

Products and reference designs
Block diagram

Traction inverter

Block diagram

Overview

Our integrated circuits and reference designs allow you to create traction inverter designs that efficiently convert DC power to alternating phases of power to drive multi-phase motors.

Design requirements

Traction inverter designs require:

  • Safely and efficiently control and protect the power switch (IGBT/SiC).
  • Position sensing of the motor shaft (resolver replacement).
  • Following state-of-the-art architecture regarding system redundancy in order to allow implementation of the system on the highest safety level.

Block diagram

Find products and reference designs for your system.

Traction inverter

V/I SENSE V/I SENSE 12V 12V System basis chip (SBC) System basis chip (SBC) System monitors System monitors Diagnostics Diagnostics SPI SPI DC/DC DC/DC LDOs LDOs WDT WDT Non-isolated DC/DC power supply Non-isolated DC/DC power supply DC/DC DC/DC High voltage High voltage Input power protection Input power protection Reverse polarity protection Reverse polarity protection Digital processing Digital processing CAN CAN MCU core MCU core PWM PWM GPIOs GPIOs ADC ADC M M Pos. Pos. Rotor position sensing Rotor position sensing Position sensing Position sensing Self-diagnostics/monitoring Self-diagnostics/monitoring Sensors (V,T,I %..) Sensors (V,T,I %..) ADC ADC VREF VREF AFE AFE Safety & glue logic Safety & glue logic Loads Loads Galvanic isolation Galvanic isolation Power stage Power stage Half bridge Half bridge LS driver LS driver L O G I C LOGIC HS driver HS driver D I G DIG I S O ISO Isolated bias supply Isolated bias supply DC/DC DC/DC DC/DC DC/DC Redundant power supply (backup) Redundant power supply (backup) DC/DC DC/DC DC/DC DC/DC Wired interface Wired interface CAN CAN Signal isolation Signal isolation D I G DIG I S O ISO Current & voltage sense Current & voltage sense ISO ISO A M P AMP AMP AMP

Technical documentation

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Type Title Date
Technical article Improving safety in EV traction inverter systems PDF | HTML 31 Aug 2023
Technical article 3 ways MCUs are addressing common design challenges of 800-V EV traction inverters PDF | HTML 18 Jul 2023
Technical article Reducing power loss and thermal dissipation in SiC traction inverters PDF | HTML 08 Aug 2023

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