# SImple 30w LED Driver - Need Help

Discussion in 'Datasheets, Manuals and Component Identification' started by yoyom, Jan 1, 2013.

1. ### yoyom

22
0
Jan 1, 2013
Hello friends,

I'm not electronic expert. But I do DIY things for my own fun. I bought a 30W Led, 32-35v and 1750mA.

I want to convert AC 220V to 32v DC @ 2Amp. I tried searching for a schematic for the same but unfortunate for this.

Can someone please help? I know its a lot of work, but if someone can, It would be great.

2. ### (*steve*)¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥdModerator

25,451
2,809
Jan 21, 2010
Those figures do not add up (well, multiply).

32V at 1.7A is in excess of 54W

You need to confirm the figures.

Is it a single LED (presumably a COB device) or is it a panel?

3. ### yoyom

22
0
Jan 1, 2013
My bad. Its a 50W Led to be precise (as labelled)

Max Input Voltage - 34v (32-34v)

Max Input Current - 1750mA

Watt = around 55W approx

Its a SIngle LED.

Last edited: Jan 1, 2013
4. ### (*steve*)¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥdModerator

25,451
2,809
Jan 21, 2010
OK, apart from a significant heatsink to mount it on, you are best looking for a design for a constant current source capable of 1.7A at 34 volts or higher.

Here is one option.

Making one yourself is another option, but you probably couldn't do it for that price.

5. ### yoyom

22
0
Jan 1, 2013
But the input voltage on the link given is 12 V and its DC- DC.

I need a AC - DC

25,451
2,809
Jan 21, 2010

7. ### yoyom

22
0
Jan 1, 2013
Can't I built one?

8. ### (*steve*)¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥdModerator

25,451
2,809
Jan 21, 2010
What's your level of experience? How many offline SMPS power supplies have you built?

Are you skilled with working with rectified mains, winding your own transformers, etc?

But now you know what you need, you can try to google for circuit diagrams.

This is definitely not a beginner project.