THD improvement in LED driver

2 posts / 0 new

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 ?

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