| The light output that can be obtained using LEDs has increased by four or five orders of magnitude over the last couple of decades. What is...
All items tagged with Power and LED (32)
| The idea behind this project is a simple one. The power supplies for a (A)DSL modem and accompanying WLAN router can draw a total power of a...
| The switch-mode power supply chosen by the author for this article is built without the use of special-purpose ICs and so can be completely...
| 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...
| This circuit will need just a few micro-amps to make an LED flash. The energy comes from a home made ‘vegetarian’ battery.We have to admit t...
| Tiny white LEDs are capable of delivering ample white light without the fragility problems and costs associated with fluorescent backlights....
| In recent years the LED has seen many improvements so that we see them fitted in more and more situations where filament lamps were traditio...
| This circuit senses AC audio voltage supplied to the car-radio loudspeakers and displays it as power using a LED bar graph, achieving at the...
| Every electronics laboratory needs a powerful regulated bench supply. In the model described here a microcontroller monitors the actual and...
| Building an LCD module into an equipment (for instance, a voltmeter into a power supply) is often not straight forward, because its supp...