Modeling TL-431 in AN-57

Hi,
I still checking with author for reference material . I will come back to you.

Hi, if you can update, it is really appreciated.

Hi,

Please check attached material to derive the equation. This equation is slightly different from the one given in application notes. The attached material gives the correct equation.

Thank you for your reply. Vfb/Vout is provided on equation 3-58 on the PDF you sent. I can consider equation 3-58 to get equation 23 on AN-57. However there is one problem. On equation 23 on AN-57, there is KTL431. Would you advise how to remind KTL431 to get equation 23 from equation 3-58? Best Regards

Hi ,

Please ignore the equation given in application note and follow the procedure given in previous attached document.

Thank you for your reply. Do you mean that equation 23 in AN-57 is NOT correct? If it is NOT correct, would you revise AN-57?

Hi,

We are discussing internally, will update once finalized.

Thank you for your reply. Do you mean that the link "https://greenductors.com/" is your reply? I do not understand the meaning of the link. If you can explain the details, it is really appreciated. BR

Hi Hasebe,

It was a spam message posted by someone. Sorry for inconvenience.