LNK6776-HP with opto feedback
Posted by: treez
on
Hi,
Can we use LNK6776-HP with a feedback optocoupler...presumbaly we can, and can just connect it common collector and into a divider into the FB pin...normal TL431 error amp circuit on secondary side?
Which one, Innoswitch, or Lnk6xx6-HP, is better able to be fitted directly below the flyback transformer? (and not suffer noise issues)
Hi treez,
Thank you for showing interest with PI products.
As for your inquiry, may I know why do you need feedback optocoupler for your design?
Upon checking LNK6776-HP datasheet, it's intended to eliminate optocoupler and all secondary control circuitry that dramatically simplify power supply designs.
If you want an optocoupler based design, you may check DER-453 here https://www.power.com/sites/default/files/documents/der453.pdf
Let me know if you have further inquiries/clarifications.
Regards,