Open Saber Project: LED driver preview

**Clockwork** · 10-29-2008, 10:59 PM

With Halloween on Friday and a few OSP driver boards sitting on my soldering desk I though I would throw one into an MHS hilt I got in one of Tim's Grab Bags. So here it is:

http://www.youtube.com/watch?v=-wgd64kAT_E

Do I hear the word BRIGHT?!

As stated in the Video, It is running a LedEngin at 5.3v and 2A. The heart of the driver board is the stsc2 Chip

http://www.st.com/stonline/books/pdf/docs/13968.pdf

The schematic is straight from the data sheet. Huge thanks to TroyO who designed the PCB. I am also working on a version that will have a pulsing effect, this hopefully will be ready Friday.

Thanks for looking

**Jedi-Loreen** · 10-29-2008, 11:24 PM

Holy CRAP!

I could never duel at night with something that bright. Holding it anywhere near my face would blind me.

**swear000** · 10-30-2008, 12:15 AM

could the PWM pin on the chip be used for ramping?

**GrimaOllak** · 10-30-2008, 05:43 AM

When I watched you fire up that saber, it got an out-loud "WHOA" from me. That sucker is BRIGHT! Thanks for showing us!

**ThreeQuadFive** · 10-30-2008, 05:53 AM

Holy heck that's one bright saber!

*ME WANTS!!*

**xwingband** · 10-30-2008, 06:47 AM

I'ts hard to tell brightness though. A Lux III can look the same in videos too in comparison to a MR.

**MoonDragn** · 10-30-2008, 07:29 AM

Originally Posted by swear000

could the PWM pin on the chip be used for ramping?

I think you probably could hook it up to a clock chip and change the frequency. It would just slowly brighten the LED as you sped up the frequency.

**VeggieJedi** · 10-30-2008, 09:06 AM

that is awesome! when and where can i get one of those drivers?

**Clockwork** · 10-30-2008, 09:10 AM

Originally Posted by swear000

could the PWM pin on the chip be used for ramping?

Yes you can use PWM dimming for ramping as well as flicker. I am working on getting a LedEngin 10W amber up and running for tomorrow as well. If all goes to plan it will have the ramping and flicker effects working and I will try and get a video up.

As for the sound part that I mentioned might be up, I am still working on the Amplifier section. I need to get some parts to finish it off.