+5v is max draw.. However, some mb's put less voltage to a LED connection then others. if there is excessive draw on the LED pins, it can cause instability. I use +5V blue and white leds, have been ...

This is a fairly long post, so bear with me- I just want to be clear on everything. It would be easier with pics, but unfortunately I'm at work. There are actually 2 somewhat related questions. I know ...

[mircemk] built a slick-looking LED tester with a couple handy functions built in. Not only can one select a target current to put through an LED, but by providing a target voltage, the system will ...

Fig 1. This voltage regulator circuit (a) uses green LEDs as both the stabilization elements and as the voltage indicators at the front-panel switch (b). Fig 2. The addition of resistor R4 to the ...

LED drivers control the amount of current and voltage supplied to light emitting diodes (LEDs). An LED driver IC is an integrated circuit (IC) that provides brightness control and backlighting color ...

Cree, Inc. announces the availability of brighter Cree® XLamp XT-E and XM-L High-Voltage LEDs to provide manufacturers more efficient, cost-effective components. Cree, Inc. announces the availability ...

According to the SEAD (Super-efficient Equipment and Appliance Deployment) initiative, televisions are responsible for approximately 3 to 8% of global residential electricity consumption. An analysis ...

In a previous post, I took a look at the falling prices of LED-based lights, using a flame-tip light as an example. (Quick summary: small lights are a significant market in both the US and Europe.

Light emitting diodes (LEDs) are PN junction devices that give off light radiation through electroluminescence when forward biased. They are used as various indicators in aviation, automotive and ...

When atomically thin semiconductors are combined together in a Lego style, they emit light at a lower voltage potentially leading to low energy consumption devices. Whilst this research is in its ...