CCM PFC L4984D design help

vikkasdhhir

New member
Hi

I'm Vikas trying to incorporate CCM based PFC Pre Regulator using ST L4984D with LLC Based dc dc convertor using L6599A. Because due to LLC design as the input voltage changes the LLC controller change it's frequency to maintain output voltage with in feed back loop as the input voltage dips it drifts from resonant frequency and goes out of control. As the we require 90Vac ~ 270Vac wide input range. In India the Nominal Input voltage is 230Vac.

But i am not able to calculate the boost inductor, as I was searching internet for help I found a ST Presentation Regarding L4984D in that doc ST is offering excel sheet for designing (only on request). I requested the same as of now they did not provided the same is anyone in Forum can help me in the same.
• Excel spreadsheet DESIGNING A FOT PFC USING THE L4984 (AVAILABLE ON REQUEST)
 

Attachments

  • Seminars_Power-Conversionx.pdf
    81.9 KB · Views: 3
Top