LED driver

amiklic1 said:

Hello,

I'm looking a reliable and working schematic to build a LED driver with these specs:

- input voltage= 10,5 - 15V(can be different, but marine battery of 12V typically gives 11,0 - 14,4V)

- LED power (High power 10W or 20W LED are to be used) = 1A - 2A

I'd appreciate links or schematics. I've found a bunch of stuff out there on Internet, but many of them don't work. I'm driving crazy so I'm asking you folks for help.

Thanks in advance...

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amiklic1 said:

Codiak thanks for the info, but I'm looking fir DIY solution.

What I have is:
Colour temp.:6000K
Lm: 700lm
Power:10W
Voltage:14V
Current:700mA

and all the same for 20W, just current is 1400mA

datasheet can be found on:
http://www.artas.hr/rasvjeta/dokumenti/HPR20D-19K10NW.pdf - 10W and
http://www.artas.hr/rasvjeta/dokumenti/HPR20D-19K20NW.pdf - 20W

thanks in advance

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Codiak said:

Would appear a simple buck would do the job...

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amiklic1 said:

OK, I'll try with BuckPuck.

I've just ordered two of 100 mA.

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amiklic1 said:

OK, I'll try with BuckPuck.

I've just ordered two of 100 mA.

The only problem is that FedEx international shipping for two of those costs me 35 US$, which is tooo much.

I'll try to organize it other way in future orders.

How 'bout cooling of those BuckPucks? I plan to put LED into alluminum or stainless tube housing with fins, and use it underwater. Do I have to organize the cooling or just placing te BuckPuck inside will be OK. It's not problem to put it onto the housing plate with thermal paste between if it will help.

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