94% Peak efficiency, 150W norm, 240W peak industrial AC/DC power supply with CC/CV reference design


Design files


This compact, high efficiency, 24V DC, 150W nominal, 240W peak output at 230VAC reference design is targeted for industrial AC/DC power supplies. The circuit consists of a frontend transition mode (TrM) power factor correction(PFC) circuit based on the UCC28056, followed by a robust LLC stage for an isolated DC/DC converter based on the UCC256301. For high efficiency needs, synchronous rectification is done with the UCC24624. This design does not need an additional auxiliary power supply to meet no-load consumption. The design enables 94% peak efficiency and allows the system to work without forced cooling. This design has both constant current(CC) and constant voltage(CV) feedback loop which is suitable for battery charger application.

  • Wide operation input range of 90 to 265V AC with full power delivery over entire range
  • Peak overall efficiency of 94.4% at 230V AC and 93% at 115V AC, enables natrual convection cooling
  • Delivers up to 6.25A continuous current and up to 10A peak current for 3 seconds
  • Adjustable output voltage from 22 to 28V
  • Very low no load power consumption of <400mW
  • System protected for overcurrent, short-circuit, and overvoltage ensuring safety needs
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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.


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

TIDRXU6.ZIP (70237 K)

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

TIDCF19.ZIP (281 K)

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

TIDRXU5.PDF (1610 K)

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 94% peak efficiency, 150-W norm, 240-W peak, industrial AC/DC power supply (Rev. A) Feb. 12, 2019
Technical article Three considerations for achieving high efficiency and reliability in industrial AC/DC power supplies Apr. 04, 2019

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