Other Parts Discussed in Thread: TLV431
Hello!
it is possible to send me the step-by-step calculations to feedback loop design of PM10871?
I am using this reference design and I have a problem in the feedback loop, because I am using the optocoupler TLP181 (rank GB). With the original components of design of PM10871, the optocoupler are saturated. I changed the RLED to make the optocoupler operates in linear region but is not enough to put the Vfb inside the useful range and estabilizes the circuit. I read a lot of application notes with different circuits using the TLV431 and a optocoupler to external-error amplifier but any equal of used on PM10871.
Thanks for attention,
Best regards,
Diego