| You’ve replaced all your incandescent lamps with energy-saving lamps. Your TV set is never in standby mode, and you’re giving serious consid...
More about Energy (138)
| The backlights used in some LCD panels are not exactly economical: typical current draws of 20 mA to 100 mA are common. Normally the current...
| Power management inside the PC is becoming more important. Certainly those heavy-duty game systems that can consume over 500W can do with a...
| As opposed to the good old light bulb, a CFL needs an amount of electronics to start and light properly. Here we show a suitable circuit. Th...
| How much power does your modern LCD or plasma TV use when it is on? And how much when it is supposed to be 'off'? If you want to be...
| The amount of electronics in industrial and domestic areas increases worldwide, but on the other hand fossil resources, our basic sources of...
| The Wireless Energy Monitor consists of several sensors with a transmitter and a receiver. The transmitter and the sensors are placed in the...
| ‘Save energy!’ is a much-heard slogan these days, with rising oil prices and the greenhouse effect always in the news. Research has taken pl...
| It’s too good to be true, and the laws of thermodynamics say it isn’t true, but it’s still a persistent dream: free energy. It also seems a...
| If a relay is driven by a transistor switching stage it is usual to connect a flywheel diode in parallel with the coil to short out the back...