Search results for query: *

  • Users: trailhead
  • Content: Threads
  • Order by date
  1. T

    Buck switcher troubleshooting

    It's now running on the bench but I'd rate my first attempt at a switching regulator only about 40% successful. Based on a Linear LT1510 charger I was trying for constant current outputs of .3 and 1.2 amps. I lowered the current by a switch that removes one of the parallel resistors from the...
  2. T

    New white binning summary

    I just got a new white binning summary from Lumileds via Future, thought I'd share. Cheers Duane
  3. T

    Alumina Oxide powder

    I read about the thermal adhesive comparison test a while back and one of the contestants was the epoxy/alumina oxide slurry. It was mentioned that the powder was available at the Shoppe. I can't find it now. Is it out of stock or was it decided that it wasn't worth the effort? Cheers Duane
  4. T

    Does Luxeon Vf shift?

    Does the Vf of a Luxeon LED shift or vary over its life? I haven't been playing with them long enough to see. Thanks Duane
  5. T

    separation of emitter and star

    What is the recommended method to successfully separate a Luxeon emitter from its star? I want to try a different mounting arrangement. Thanks Duane
  6. T

    Do I have to play the lottery?

    Is there a Luxeon supplier where you can choose (or at least be aware of at time of order) the bin of a Luxeon, or is it always a game of chance? Speaking of suppliers, other than Future Electronics or Elektrolumens, where are you people getting your LSs? Thanks Duane
  7. T

    Multiple LSIII driver

    Greetings, I've found that three LSIIIs with a Fraen Tri-Lens make for an excellent mountain bike light. I'd like something more efficient than my current LM317-based current regulator though. Does anyone know of any drivers out there with the ability to deliver this kind of power (roughly 13V...

Latest posts

Back
Top