More about power (1014)

1-12-2003 | Tiny white LEDs are capable of delivering ample white light without the fragility problems and costs associated with fluorescent backlights....

1-12-2003 | How often on average do you have to call members of your family each day to tell them that dinner is ready, it’s time to leave, and the like...

1-12-2003 | Relays are often used as electrically controlled switches. Unlike transistors, their switch contacts are electrically isolated from the cont...

1-10-2003 | GoldCap capacitors offer an interesting alternative power source when compared to conventional disposable or even rechargeable batteries. Th...

1-10-2003 | Genuine power valves such as the EL84, EL95, ECL80 and ECL86, and in particular the PL504, do of course offer more power output at low anode...

1-09-2003 | 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...

1-07-2003 | 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...

1-06-2003 | Although the amount of power drawn by electronic circuits is steadily decreasing, there are still many devices that need a large amount of l...

1-04-2003 | This circuit can be built into a power bar and used to remotely switch six socket-outlets. It is controlled via an RS232 interface and uses...

1-03-2003 | This compact stabilised power supply was specifically designed to obtain the best performance from the recently described subwoofer that for...