Luminus CFT-90 Testing - The Mother of all LEDs

[JasonWW]

@djozz

@JasonWW

The other, bigger reason is it requires a special driver to power it. Richard at Mountain Electronics is the one who built the driver for Skylumen, but I don’t think he’s offering them to the public yet. Lexel is also working on a driver for that emitter. I recall someone mentioning a third person who is working on a driver, but I can’t remember who it is. No driver, no light.

huh? I do not see the need for a special driver, it is a normal 3V led, it just can handle an enormous current. Is there reason why a bunch of parallel 18650’s and a 5-dollar BLF-A6 driver would not drive this led to 25 amps?

The A6 is a FET driver, right? Lexel said using a FET driver is not really an option for such an expensive emitter.

I assume he means it would be very likely you could burn it up. How would you like a $5 driver to burn up a $150 emitter? That would suck.

I’m sure you could ask him for more details. Here is his CFT-90 driver thread. Well, not a driver build thread, but the closest I could find.

TN42lx and GTlx with CFT-90, first tests and assembly

I started this idea a while back pretty much same as Skylumen I put it not on high priority and a lot of time passed without any progress I have now tested the first driver thats function works as expected, still its a prototype which has a too high standby drain, I need to get someone implement a Enable output in NarsilM to be on while MCU is awake and off when in sleep as it is now the buck chip and temperature sensor reference voltage east a few mA which is not acceptable for me So lets …

The driver design is a buck.