Flyback Seconday feedback topology Vs. Primary-side control LED driver switch

3 posts / 0 new

Hi All,

Please can someone help with the query:

Why should one go with Flyback Seconday feedback /isolated topology using LNK and LYT Switches when we can go for Primay Feed back topology with Two windings - primary-side control LED driver switch using LIS8156. The cost of component and size comes down drastically.


Thanks in advance

- Praveen Sahu

If anyone has any idea about above query pls respond


Most, if not all of our LYTSwitch drivers such as LYT-4, LYT5, LNK-PH are primary-side control in which the feedback is not taken from the secondary and require an opto-coupler if the design has to be an isolated flyback.