Editors’ Note: This segment is adapted from Chapter 2 of Power Supplies for LED Driving by Steve Winder. Since an LED behaves like a constant voltage load, it can be directly connected to a current ...

Cree has introduced a pair of circular emitter LEDs with no over-die lens for beam-forming applications. Colour temperature options are 5,000, 5,700 or 6,000K. “These LEDs deliver smoother, more ...

An array or bank of load resistors is often required for testing power products, characterization of solar panels, and many other applications that require evaluation under various well-defined loads.

One of the questions that hobbyists ask over and over is how to select the value of a current limiting resistor for an LED. Usually the seat of the pants response is: “Subtract 2 V from the supply ...