TIDA-020014 Reference Design

Texas Instruments

HEV/EV traction inverter power stage with 3 types of IGBT/SiC bias-supply solutions reference design

Description

This reference design presents a traction inverter single-phase power stage with three 12-V car battery inputs: 4.2-W bias supply solutions for hybrid electric vehicle and electric vehicle (HEV/EV) systems. All bias-supply solutions accept a wide input range of 4.5 V to 42 V DC from a 12-V car battery: and generate outputs as +15 V: –8 V or +20 V: –4 V configurable and up to 180-mA output current. The power stage includes the isolated gate drivers with 5.7-kVRMS reinforced isolation and designed in 100-mm × 62-mm form factor fitting on SiC/IGBT half bridge modules. It includes isolated DC bus sensing: isolated temperature sensing: logic shoot-through protection and diagnostic features. Apart from startup: efficiency: load regulation tests under low voltage input: all bias supplies are also connected with power stage and IGBT module for CMTI: double pulse: and short-circuit tests under high voltages.

Features
  • Traction-inverter: single-phase: power-stage design includes dual-channel isolated gate driver: isolated DC bus voltage sensing: and isolated temperature sensingThree types of SiC/IGBT bias-supply solutions for IGBT/SiC isolated gate driversWide-VIN converters over the input voltage of 4.5-V to 42-V DCOutput configurable as +15 V: –8 V or +20 V: –4 V at loads up to 180 mA for driving Si IGBT and SiC MOSFET modulesPrimary-side regulation with no optocoupler for extended lifetime and small form factor
Applications
  • Fuel cell control unit (FCCU)
  • Traction inverter-high voltage
  • Traction inverter-low voltage
  • Starter & generator
  • 1-phase AC-digital control
  • 3-phase AC-analog control
  • 1-phase AC-analog control
  • 3-phase AC-digital control
  • Unidirectional 400 V & 800 V to LV
  • Unidirectional HV-to-LV digital loop
  • 48-V to 12-V DC/DC converter
  • Bidirectional 400-V & 800-V to LV
Product Categories
  • Power management