Hi guys,
I am concidering to use AC-DC converter application circuit of the following.
http://www.tij.co.jp/jp/lit/ug/sluu142/sluu142.pdf
I'd like to know how to calculate what UCC38C43 osccilation frequency is in the application circuit.
The osccilation frequency is set by resistors (R18, R24, R25) and capacitor (C11, C12).
It is difficult for me to calculate the frequency because many resistors and capacitors are connected
to Rt/Ct terminal of UCC38C43.
Could you please tell me how to calculation the frequency?
Your help would be appreciated.
Thank you and best regards,
Kazuya Nakai..