L4891A

[info23]

Posted on October 13, 2013 at 13:34

Hello,

I am not sure if this is the right forum to post in. My question is about the L4891 PFC controller, Is there any calculator for extracting the inductor value, and all other values? Its going to be a very complex tast to do it using the formulas. I have seen many other controllers comes with these powerful tools. And I don't know why ST don't have it. Also, Is it possible to replace the MOSFET power switch with IGBT? Regards

[ramator]

Posted on October 16, 2013 at 15:50

Hello,

In type of subject is error, controller type must be specified L4981.

I recommend using AN628 http://www.st.com/web/en/resource/technical/document/application_note/CD00003936.pdf

and AN829

http://www.st.com/web/en/resource/technical/document/application_note/CD00003943.pdf

Arithmetic is always the easiest job for the design engineer.

Good luck!