300W Full Bridge Phase Shifted (FBPS) DC/DC Power Supply Reference Design


Design files


This design is a 100kHz FBPS converter working in voltage mode. It supports 400Vdc..750Vdc input voltage range and provides 24V/12A regulated. TI's UCC28950 part enables high efficiency at high input voltage.

  • Over 92% efficiency at full load
  • High input voltage
  • 250W phase shifted fullbridge
  • Wide high input voltage range 400Vdc to 750Vdc
  • Provides synchronous rectification w/ efficient voltage doubler
Output voltage options PMP8606.1
Vin (Min) (V) 350
Vin (Max) (V) 750
Vout (Nom) (V) 24
Iout (Max) (A) 12
Output Power (W) 288
Isolated/Non-Isolated Isolated
Input Type DC
Topology Full Bridge- Phase Shifted

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.

TIDU621.PDF (317 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more


Detailed schematic diagram for design layout and components


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


Includes TI products in the design and potential alternatives.

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PWM controllers

UCC28950Green phase-shifted full-bridge controller with Synchronous Rectification control

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Shunt voltage references

LMV4311.5%, low-voltage (1.24-V) adjustable precision shunt regulator

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Technical documentation

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Type Title Date
Test report PMP8606 Test Results Oct. 24, 2014

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