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THD improvement in LED driver

Posted by: sanjaypusalkar on

I have developed a 45W LED driver (30V, 1.5A) using PI's LNK419. Currently I am achieving a THD of around 24% at 230VAC input. Is it possible to bring it down to <10% using the same device ? If not, which device should I use ?

Comments

Submitted by PI-Dunwell on 12/09/2013

Yes it is possible. You need to reduce KP and lower VOR for lowest THD.