Reinforced Isolated IGBT Gate Drive Flyback Power Supply with 8 Outputs Reference Design


Design files


This reference design provides reinforced isolated positive and negative voltage rails required for Insulated Gate Bipolar Transistor (IGBT) gate drivers from a single 24-volt DC input supply. Utilizing a flyback isolated control topology, this reference design provides isolation compliant to IEC61800-5, and generates power rails for all three arms of the 3-phase inverter from a single transformer. The output power is currently set at 2W/IGBT but can be scaled up for higher power IGBTs by changing the transformer design.

  • Isolated power supply supporting 6 IGBT gate drivers for 3 arms of inverter (Each arm in Half-Bridge Configuration)
  • Operates with pre-regulated 24V
  • Two reinforced, low-ripple (<200mV) outputs for each IGBT driver: +16V (x2) & -8V (x2)
  • Output power: 2W per IGBT and scalable to support higher power IGBTs
  • Output capacitors rated to support up to 6A peak gate drive current
  • Option to shut down the power supply to facilitate Safe Torque Off (STO) feature
  • Designed to comply with IEC61800-5
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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.

TIDU411.PDF (10061 K)

Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


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


Detailed overview of design layout for component placement

TIDRAL7.ZIP (2745 K)

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

TIDC632.ZIP (323 K)

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


PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

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Technical documentation

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Type Title Date
* Design guide Reinforced Isolated IGBT Gate-Drive Flyback Pwr Supply w/ 8 Outputs Design Guide Aug. 25, 2014
Application note Analysis of Power Supply Topologies for IGBT Gate Drivers in Industrial Drives Jul. 06, 2015
Application note Is Your IGBT Gate-Driver Power Supply Optimized Mar. 12, 2015

Related design resources

Reference designs

TIDA-00181 Isolated IGBT Gate-Drive Push-Pull Power Supply with 4 Outputs TIDA-00199 Wide-Input Isolated IGBT Gate-Drive Fly-Buck Power Supply for Three-Phase Inverters Reference Design

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