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UCC28951: Can I use PSFB Topology for the my specs

Subhashitha Potharaju
Prodigy 30 points
Part Number: UCC28951
Other Parts Discussed in Thread: UCC28950

Hi 

I am trying to build a DC to DC Converter with an input range of 250V to 750V DC and Output of 350V @ 800W power. Can I use a PSFB topology for building this? I compared two options PSFB and Boost+Forward Converter for my specs. I am attaching my observations also. Can anyone suggest which option would be better?Comparison1.pdf 

  • 0
    TI__Prodigy 590 points

    Hi Subhashita,

    I have reviewed the comparison between the PSFB and Boost + Forward converter topologies, and it is well summarized. The PSFB topology clearly stands out as the better choice for your application, offering higher efficiency, improved power density, and faster dynamic response. In addition, a fully analog implementation is possible using the UCC28950 controller, which provides features such as soft start, dynamic ZVS control, improved light-load efficiency through burst mode operation, and adaptive dead-time control to further enhance efficiency. 

    Regards,

    Anil