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Posts Tagged ‘high power LEDs’

LED produces 2.3x more light energy than electrical energy consumed

Friday, March 16th, 2012

MIT physicists developed an LED that emits more light energy than the electrical energy consumed. These LEDs supplement electrical energy with heat from the surrounding environment. Unfortunately this has only been observed at very low power levels. The researchers chose a light-emitting diode with a small band gap, and applied...

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Posted in LEDs | 9 Comments »

28C3: Driving high power LEDs

Friday, January 20th, 2012

Here's a brief video from the recently concluded 28C3 hacker conference hosted by Chaos Communication Congress in Berlin, Germany. Jonathan Foote of rotormind.com covers some ways to drive high power LEDs without burning them up, including the latest technology current source circuits and ICs. This was one of the "lightning...

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Posted in components, LEDs, talks | 6 Comments »

Recent Comments

  • Joe Desbonnet: Ya, I can recommend the low melting point solder. I used brand 'ChipQuik' and it's amazingly easy to use.
  • Jerome: I need a new BusPirate for the Fablab ;) Many thanks!
  • Max: Seems like an unexpectedly violent way to remove the chip indeed. A hot air station should of course do the job just fine, but in...
  • jose: Part removal described here is pure butchery, the cheapest hot air station will do a fast and clean job removing the QFP, heat air to...
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