UCC28180: Design review for PFC...

Peter Tseng

Part Number: UCC28180

Dear Sir,

Could you help to review if there is any problem for my customer PFC design?

Thanks.

AC19.2V ~ 31.2V ( Vnom = AC24V )

PFC boost to 60V

DC Output 12V/21A

PFC Transformer : PQ3220 / 3.3uH / 4Ts

0 Yunsheng Qu over 4 years ago

Hi, Peter

Your post is under review, pls expect a response by next Monday.

Yunsheng

0 David Huang33 over 4 years ago in reply to Yunsheng Qu

Hi Peter,

UCC28180 is a fixed frequency CCM controller, it is not the same as LD7591, the PFC inductor is a around 30uH.

please do not use LD7591 as a calculator, TI has a an excel calculator for UCC28180.

Please refer to below link, in the design tools&simulation section:

0 Peter Tseng over 4 years ago in reply to David Huang33

Dear David,

Attached files of customer design data.

Please help to check if there is any problem with it.

Thanks.

0 Peter Tseng over 4 years ago in reply to Peter Tseng

Hi Sir,

Any update? Thanks.

0 David Huang33 over 4 years ago in reply to Peter Tseng

Hi Peter,

from the calculator, the PFC inductor value should be at least 24uH. So I suggest you can follow the calculator to redesign the PFC inductor.

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