LM3478: I required a advice of PFC controller and achieving < 10% thd in constant current led driver

Hi Amit, 

Thanks for using e2e form. 

Could you please help us to undertsand if PFC  stands for - Power Factor Correction controller and 10% threshold of what is needed?

We have TPS40211 which has a lower 260-mV reference for higher efficiency in LED drive applications. This link shows the typical application circuit using  TPS40211-  https://www.ti.com/document-viewer/TPS40211/datasheet#GUID-5D301495-F12A-486F-9846-BA7581427D33/TITLE-SLUS772SLUS772833 

Best regards,

Mounika

Basically my application is driving LED strip at 24 Volts constant DC ( 100 W load, 3.5 amp max current, at present we are getting 0.95 power factor ) , we have developed boost controller which gives upto 72 V DC as per applied different loads  from 10 V AC input at 6.6 ampere by UC 3525A and LED output driving by FAN7171-F085 with UC 3525A (as per your suggestion now this output side UC 3525A to replace with TPS40211 ? (this will reduce my total harmonic distortion below 10% )

Hi Amit, Please help us with the Input voltage range  and if it is AC/ DC. Do you want to replace  UC 3525A with TPS40211?

 It would be great if you can provide us with the block diagram. It is easier to understand it then.

Best regards,

Mounika

https://docs.google.com/presentation/d/115Vq8e9hf3hh1qCT1ek8_t3v34pf18YL/edit?usp=sharing&ouid=106510229717285221667&rtpof=true&sd=true

pls find the block diagram as mentioned above for your inputs.

SIGN BOARD 12VAC AND 2.8A AC to 6.6A ac (002).pdf based on your feedback, we have prepared this, kindly suggest if any addition or alteration is required.

Pls send us the library for SG-3525 for simulation purpose in Proteus

Pls share UCC28180D Library for simulation in Proteus

You can download here.

https://www.ti.com/product/UCC28180#design-tools-simulation