An ultra high power direct drive LED driver

What's going to be driven with this monsterfet?

The board is 2 x 2.5” and used through hole parts since I had them sitting around. If I do it over again, it will be surface mount and much smaller (and with lower capacity FETs). I’d probably also put the high-current gate driver on the second PWM channel/FET.

Beautiful!
J) <= that emoticon pretty much sums up my feelings while reading the specs.
I’m looking forward to your build! :slight_smile:

That’s exactly how I feel as well! :bigsmile:

I you can spare couple of W you could use peltier cooler J)

Peltier coolers are a joke. They take over 20 watts of power to produce 1 watt of cooling… and you have to get rid of the 19 watts of heat somehow…

Awesome and powerful. Whether a 75x75mm CPU fan cooler can handle the heat of the LED and the driver. It should produce a lot………………of light.

hm, didn’t know that.

That is some coolness right there, TP!! >)

That's easy. Just use a second TEC to cool the first one. :party:

MOSFET pr0n:

RDSon = 0.001 Ohm
This one is in a slightly different class though, the package is somewhat large for your board :wink:

27 bucks a pop… and you have to buy 9 of them. Also, they conveniently don’t spec some important specs…

Not sure about missing specs being convenient for anyone… which missing specs should be there?

Me as well. It sounds like your light may be used on a locomotive?

nice! 300W=around 12000 lumens ? you win the lumen part of the contest.

More like over 20,000 lumens… You get well over 15,000 lumens at 150 watts.

Actually, you have to get rid of 21 Watts of heat in that circumstance. The 20 watts generated by the pelt PLUS the 1 watt of heat that is "Moved" from the cold side to the hot side.

texaspyro, any chance of you becoming some competition to TaskLED drivers? I love the H6Flex, but 40 bucks for a driver has gotta be a healthy profit margin, no?

Any chance of you making a cheaper version of the H6Flex?

40 bucks for the H6 flex is a healthy profit, but depending on the volume of them that are sold, it's not totally crazy. One cannot run a business for long on an unhealthy profit...

PPtk

You would know better than I would PPtk, it just seems to me that the components itself would only be like 20 bucks?

If 40 is a good deal, then I won’t argue, I’m just a cheapo I guess.