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Seek for Reference Data of UCD3138 PFC Tuning (SLUA709)

Kami Huang
Intellectual 455 points
Other Parts Discussed in Thread: UCD3138

Hi All

My PF Value is  only 0.7x at 75W. The result can not pass IEC spec. TI's application note SLUA709 show a good example of PF value improvement.  

http://www.ti.com/lit/an/slua709/slua709.pdf

I follow up slua709 to tun my board and get PF value improved but not good enough. 

Slua709 refer of 4 document.

[1]UCD3138 datasheet

[2]slua644, TI application note

[3]TI application note: A Harmonic Injection Method to Reduce PFC Harmonics and Improve THD

[4]TI application note: A Novel EMI Filter X-CAP Reactive Current Compensation Method to Increase PF

[3] and [4] can not be found.

Did someone have [3] and [4]? Would you please share to me? 

Add Inductor current waveform and value

Kami Huang