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UCC38050: Universal power supply design

Sathish kumar
Prodigy 10 points
Part Number: UCC38050
Other Parts Discussed in Thread: UCC28C42

Looking for universal power supply for below specification.

Input: 21-260Vac, 50/60Hz

Output: 24Vdc, 5A.

  • 0
    TI__Guru* 85616 points

    Hello,

    Your inquiry has been received and is under review.

    Regards,

  • 0 in reply to Mike O'
    TI__Guru* 85616 points

    Hello,

    Are you looking for a power factor corrected (PFC) pre-regulator?

    If you are looking for PFC are you looking for a two stage solution to obtain the 24 V?

    Have you tried TI's reference design library to see if there is a design that already fits your design requirements?

    The following link will bring you to the reference design libary.

    https://www.ti.com/reference-designs/index.html

    Regards,

  • 0
    Prodigy 10 points

    Hi,

    I have been checking the below design.

    https://webench.ti.com/power-designer/switching-regulator/export/20

    Thanks

    Sathish

  • 0 in reply to Sathish kumar
    TI__Guru* 85616 points

    Hello,

    The Webench designer will generate a schematic and BOM for your design.  In regards to the UCC38050, I believe it will generate a boost stage for you based on an 85-265V AC input with roughly a 390 V output.  You would then have to step that voltage down with a DC to DC converter.

    You could use a flyback converter for the step down using a UCC28C42.  If you have questions on how to design a flyback converter using this device please repost in the e2e with UCC28C42 in the title.

    One last comment on your input range.  I would recommend designing with an input of 85-265 V AC.  Most designs so you don't have limitations in duty cycle should be limited 3 to 1. 

    Regards,