TIDA-020014

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

TIDA-020014

Design files

Overview

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 sensing
  • Three types of SiC/IGBT bias-supply solutions for IGBT/SiC isolated gate drivers
  • Wide-VIN converters over the input voltage of 4.5-V to 42-V DC
  • Output configurable as +15 V, –8 V or +20 V, –4 V at loads up to 180 mA for driving Si IGBT and SiC MOSFET modules
  • Primary-side regulation with no optocoupler for extended lifetime and small form factor

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUEO7.PDF (26487 K)

Reference design overview and verified performance test data

TIDRZF5.ZIP (373 K)

Detailed schematic diagram for design layout and components

TIDRZF6.ZIP (145 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRZF7.ZIP (253 K)

Detailed overview of design layout for component placement

TIDRZF9.ZIP (1668 K)

Files used for 3D models or 2D drawings of IC components

TIDRZG0.ZIP (2645 K)

Files used for 3D models or 2D drawings of IC components

TIDCFE6.ZIP (1140 K)

Design file that contains information on physical board layer of design PCB

TIDRZF8.ZIP (1111 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

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Buck converters (integrated switch)

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Ideal diode/ORing controllers

LM74700-Q13.2-V to 65-V, 80-uA IQ automotive ideal diode controller

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Isolated DC/DC converters & modules

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Isolated amplifiers

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Isolated amplifiers

AMC1311-Q1Automotive 2-V input, reinforced isolated amplifier with high CMTI for voltage sensing

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Isolated gate drivers

ISO5852S-Q1Automotive 2.5-A/5-A 5.7-kV RMS single channel isolated gate driver with protection features

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

TPS709150-mA, 30-V, ultra-low-IQ, low-dropout voltage regulator with reverse current protection and enable

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Linear & low-dropout (LDO) regulators

TPS7B82-Q1Automotive 300-mA, off-battery (40-V), ultra-low-IQ, low-dropout voltage regulator with enable

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N-channel MOSFETs

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Supervisor & reset ICs

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Transformer drivers

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Technical documentation

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Type Title Date
* Design guide HEV/EV Traction Inverter Power Stage W/ 3 Types of IGBT/SiC Bias-Supply Sol. Ref Apr. 03, 2019

Related design resources

Reference designs

REFERENCE DESIGN
TIDA-01604 98.6% Efficiency, 6.6-kW Totem-Pole PFC Reference Design for HEV/EV Onboard Charger TIDA-01605 Automotive Dual Channel SiC MOSFET Gate Driver Reference Design with Two Level Turn-off Protection TIDA-020015 4.5-V to 65-V input, compact bias supply with power stage reference design for IGBT/SiC gate drivers

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