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

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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

hi,

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.