More about LED (792)

1-01-2005 | Here’s a recipe to make LEDs produce slow, continuous light effects rather than abrupt changes normally obtained from square-wave drive sign...

1-12-2004 | This LED blinker manages with only a few components and is dimensioned to operate from an ac supply in the range of 4–16 V (6–24 V dc). As i...

1-12-2004 | Ultrabright LEDs are becoming increasingly attractive for use in lighting and warning-signal applications. LEDs must be operated at a consta...

1-12-2004 | This flashing LED mini Christmas tree is not only dead simple to build but the design is also repeatable and very reliable in operation. In...

1-11-2004 | Lead-acid batteries still form an essential part of the on-board power systems in cars, motorcycles, boats and caravans. In its new form, fe...

1-11-2004 | If you’ve ever tried dimming a LED with a simple potentiometer, you know that the approach does not work very well. Just as with ordinary di...

1-07-2004 | In this issue we publish an ActiveX component, which can be used to control the USB analogue converter (Elektor Electronics, November 2003)....

1-07-2004 | There are many applications where the accuracy of a digital or analogue (bar graph) is not required but something better than a simple low/h...

1-07-2004 | Light-sensitive sensors with characteristics similar to those of the human eye are most often implemented using photoresistors or special (a...

1-07-2004 | Did it ever occur to you that an array of white LEDs can be used as a small lamp for the living room? If not, read on. LED lamps are availab...