The diode or LED to be tested is simply connected either way round between the test probes, and the cathode connection is indicated by the LED closest to that connection illuminating.

Four New Jersey cities have begun testing new street lamps powered by light-emitting diodes. The new LED lamps are expected to reduce energy consumption significantly, have a longer life ...

In forward mode, approximately 150 µA flows through the diode, causing D4 to be reverse-biased and holding comparator U1’s inverting input low. This turns off the red LED.

Paul Crump, head of the High-Power Diode Laser Lab at the Ferdinand-Braun-Institut (FBH) in Berlin, will lead the newly formed working group together with Will Fenwick from LLNL. Along with the FBH, ...

The lighting industry has been buzzing with news of solid-state light source advancements for several years. As one light-emitting diode (LED) lighting fixture manufacturer puts it, flat printed ...

Light Emitting Diode (LED) lighting has been gaining popularity in the wheeling world. Although still fairly expensive when compared to other technologies, LEDs offer a host of benefits that make ...

We have all had difficulty testing diodes in-circuit. Most DMM’s have a diode Vf function that measures forward drop, but what is the normal voltage drop? Analog VOM’s attempt to measure resistance of ...

I wanted to know why my LED lights weren't lasting as long as they were supposed to. The answer wasn't what I expected.

A specialized test gadget that tests continuity quantitatively in both AC and DC modes could prove to be an indispensible bench test instrument. This article describes such a continuity test set up, ...

The STARFIRE Hub – an initiative funded by the US Department of Energy to develop fusion energy solutions under the leadership of Lawrence Livermore National Laboratory (LLNL) – is pleased to announce ...