UCC28019: Excel Design tool

Expert 1035 points

Part Number: UCC28019
Other Parts Discussed in Thread: UCC28180

Dear experts,

May I know how to change the switching frequency in the excel?

I don't know where I can change this value.

I already unlock the excel file, and the default value is 65k. I would like to change it.

0 JCHK over 1 year ago

HI J,

The UCC28019 is a fixed-frequency PFC. The UCC28180 has the ability to adjust the frequency.

I hope this answers your question.

0 J over 1 year ago in reply to JCHK

Expert 1035 points

Hi JCHK,

thanks for your answer.

may I know if I want to change the fsw in UCC28019 how should I do?

+1 Harish Ramakrishnan5 over 1 year ago in reply to J

Hi J,

As John mentioned, UCC28019 runs only at fixed 65khz and it cannot be programmed externally.

If you want a PFC with frequency that can be programmed externally, you should try UCC28180.

Hope this helps.

Thank you

Regards,

Harish

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