More about power (1014)

1-07-2005 | A common problem when an AC mains adapter is used to power a USB device is that the voltage does not match the nominal 5 V specified by the...

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 circuit was designed to ‘baby-sit’ SLA (sealed lead-acid or ‘gel’) batteries using freely available solar power. SLA batteries suffer f...

1-07-2005 | Can a car ever be powerful enough? As far as we're concerned, ‘more is better’. Here we investigate how chip tuning (after all, we are...

1-07-2005 | This circuit was developed to power an AVR microcontroller from a 12 V lead-acid battery. The regulator itself draws only 14 ?A. Of course,...

1-06-2005 | During the summer months they appear again all over the place: those solar powered garden lights. During the day they store the captured sol...

1-04-2005 | A large proportion of modern electronic circuitry uses a microcontroller as a central element. In the design stage for such circuits, profes...

1-03-2005 | The High-End Preamp preamplifier published in the April & May 2004 issues naturally calls for a matching final amplifier in an identical hou...

1-03-2005 | Thanks to its robustness, the legendary EL156 audio power pentode has found its way into many professional amplifier units. Its attraction d...

1-02-2005 | Making a robot walk instead of drive around on wheels can be a daunting task. The author of this Walking Bug came up with a remarkably simpl...