Here is a look back of Allegro’s A8515, a wide input voltage range, high efficiency fault tolerant white LED driver. The device was made available in the market since 2010. It features multiple output ...

Four linear LED controllers, Diodes’ AL5814, AL5817, AL5815, and AL5816, deliver dimmable and adjustable drive current with 80% efficiency. They operate over a wide input voltage range of 4.5 V to 60 ...

Find a downloadable version of this story in pdf format at the end of the story. With the rising costs of energy and increasing governmental requirements for high efficiency lighting, the high ...

Lumileds has boosted the efficiency of its ‘high-voltage’ H50 lighting LEDs, and released details of its Luxeon Z range of small footprint high power density devices for white and coloured lighting.

Linear constantcurrent drivers, for instance, offer low EMI, low cost, and use only a few components. Many designers favor them for low-current applications where power loss is a minor concern. If ...

The advent of high-power LEDs that can replace incandescent bulbs has produced a need for circuits that efficiently match the LEDs to available power sources (batteries, car electrical systems, etc.).