More about LED (792)

1-10-2005 | Remote controlled light switches are becoming more and more common. DIY stores have inexpensive sets consisting of several light switches an...

1-09-2005 | In the past, a lot of space in hobby rooms and work stations was taken up by an instrument in a large case with a small screen, but now many...

1-07-2005 | The company Lumileds (from Agilent and Philips) has as its goal the development of LEDs that are suitable for lighting. That is why they are...

1-07-2005 | This small circuit could act as a power indicator for the 230 V mains supply and in terms of efficiency is the equal of classical neon bulb...

1-07-2005 | The circuit described here is a step-up converter to drive 20 LEDs, designed to be used as a home-made ceiling night light for a child’s bed...

1-07-2005 | Using a few diodes and a LED, you can make a nice indicator as shown in associated schematic diagram that can be used for a lot of applicati...

1-07-2005 | 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...

1-07-2005 | This design uses a classic two-transistor astable multivibrator configuration to drive the LEDs via a transformer from two standard 1.5 V al...

1-02-2005 | White LEDs are increasingly used for lighting applications in battery-powered equipment. To cope with the effects of a fluctuating supply vo...

1-02-2005 | 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...