| To get the maximum brightness and working life out of a high-power LED, it needs to be driven at the optimum specified current. Allowing the...
More about LED (745)
| If you are not lucky enough to have access to expensive test gear then lamp circuits using LEDs offer a good chance of success and allow a l...
| White LEDs are increasingly used for lighting applications in battery-powered equipment. To cope with the effects of a fluctuating supply vo...
| Here’s a recipe to make LEDs produce slow, continuous light effects rather than abrupt changes normally obtained from square-wave drive sign...
| 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...
| Ultrabright LEDs are becoming increasingly attractive for use in lighting and warning-signal applications. LEDs must be operated at a consta...
| 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...
| 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...
| 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...
| 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...