I am using TL431 and optocoupler for feedback purpose. I have below given queries about feedback system
1 What is operation mode of optocoupler in feedback circuit- Linear or saturated ?
2 I need to understand how to design feedback system using tl431 and optocoupler and its response to step change in load
3. How feed back affect load and line regulation?
4. How to test stability of feedback circuit and what is compensation circuit?
5.Suggest design note for the same
Thanks and Regards,