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 ...

[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 ...

In designs using multiple LED strings such as brake lights, daytime running lights, rear lights and other automotive lighting applications, current-balancing circuits supply equal current to all LED ...

The demands on the ordinary light fixture have dramatically increased in recent years. Commercial buildings have started using lighting to attract customers, consumers have started looking for more ...

This resource provides clear explanations of how switching regulators work and how voltage boosting is achieved efficiently ...

This “Product How-To” article focuses how to use a certain product in an embedded system and is written by a company representative. Light-emitting diodes (LEDs) have emerged in recent years as ...

High-power LEDs promise a growing number of advantages, including lower long-term cost and longer life, over both incandescent light bulbs for interior For the PDF version of this article, click here.

LED output is a function of the current through it. So to drive the device, it would seem simple enough to set the LED current with a series power resistor. But there’s a problem with this idea. First ...

The energy efficiency, longevity, and versatility of light-emitting diodes (LEDs) have made them popular in various applications, including lighting sources in homes, offices, automotive, and ...