An LED-driver reference design for an LED replacement of 100W incandescent bulbs has been introduced by Power Integrations, writes Richard WIlson. Dubbed DER-322, the circuit is desigend to fit neat ...

Look closely into this DIY project to create a powerful USB LED light. Follow the straightforward steps to assemble a bright and energy-efficient light source that plugs right into any USB port.

I've modded a drive bay so that I can slide in my Archos Jukebox and it will be reported as a hard drive. I just mounted the power plug and USB cabel to a back panel. But my question is: How can I ...

Choosing a discrete driver circuit requires an understanding of LED lighting to make the best trade-off. This Design Idea describes a simpler and equally good way to employ the ubiquitous 555 IC. In ...

The communication interface could be anything from standard lighting protocols such as DMX512 or DALI, to ZigBee or Wireless USB. Intelligence is provided by a microcontroller with built-in ...