Did you build the PMP4259 reference design ?
Or are we still talking about the pfc circuit attached in the initial question?
Have you found out what is pulling the SS pin low?
The PMP4259 reference design does not have Q5 in the BOM and it is not fitted…
Some more ideas on this Danny.
In our TI DESIGNS landing page there are power designs.
www.ti.com/.../refdesignsearch.tsp
Sorting Output Power highest to lowest, you can see some designs.
5KW Interleaved CCM Power Factor Correction Converter
180-264Vinac…
Hello,
I am also triing to make a 3kW PFC starting from PMP4259.
I have the files you need. I can send to you, just ask
Have you any chance of getting your PFC working. I have trouble myself so if you have one working could you send me the design
Thank…
Hi Colin:
thank you for your reply first,recently I had other.FOR the UCC28950's CD output jitter ,there some explanation in TI's archive (0726.sluu421a),page 19
My prototype architecture is UCC28070 interleaved PFC + UCC3895 phase-shifted full…
Hello Kanon,
Thank you for your interest in TI portfolio.
As you must know already in a PFC boost topology the bigger the conversion ratio the lower the effective efficiency. I am interested in knowing the end application of your design. Please share…
Part Number: UCC28070 Would you advise me the follow issue?
My customer is during evaluation of PFC with UCC28070.
They power supply spec is
Input voltage:universal power supply
Output:380Vdc 2500W
reference design
1200W PR779-PR778
3000W:PMP4259
5000W…