• State Resolved
  • Locked Locked
  • Replies 3 replies
  • Subscribers 63 subscribers
  • Views 410 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

WEBENCH® Tools/UCC28600: Switching regulator

Maurizio Porro
Prodigy 200 points
Part Number: UCC28600
Other Parts Discussed in Thread: UCC28180, UCC28064A, , TIDA-01495

Tool/software: WEBENCH® Design Tools

I need to develop this switching regulator:

input 85-240 VAC 50/60 Hz

Isolated output  48 VDC , 8 A

Maybe I can use a UCC28600-Q1, but I'm not sure.

Can I use the sluu256a.pdf as a guide for that? Can you help me to modify the schematic of this document to satisfy my requirements?

I tried to use the slvc104j.xls tool, but I'm not able to use it.

Thank you

Maurizio Porro

 

  • 0
    TI__Mastermind 27135 points
    Hi Maurizio,

    Thanks for your interest in UCC28600. 48V at 8A is 384W which is too large of an output power for a flyback topology. It would be better to use a two stage approach of PFC + DC/DC. For PFC you can take a look at UCC28064A for low profile or UCC28180 for low component count. For the DC/DC you could consider LLC topology which will give good efficiency due to zero voltage switching.

    TIDA-01495 might be of interest to you. It is not an exact match to your requirements but it is close to the power range you are interested in.

    Best Regards,
    Ben Lough
  • 0 in reply to Benjamin Lough
    Prodigy 200 points
    I saw your proposal: Thank you very much for your advise about the need to use a LLC topology and not a flyback.
    The power range of your proposal is good, but I need a 48 VDC, 8 A output, not 24 VDC, 20 A output.
    Can you help me to modify the schematic of your proposal to satisfy my needing please.
    I will appreciate that a lot.
    Thank you.
    Goodbye
    Maurizio Porro
  • 0 in reply to Maurizio Porro
    TI__Mastermind 27135 points

    Hi Maurizio,

    384W LLC.zip

    Please see the attached .zip. You might need some fine tuning during your bench evaluation but this should be the bulk of the necessary changes.

    Best Regards,

    Ben Lough