| The voltage step-up converter described in this article is a transformerless design based on just one integrated circuit and a handful of...
More about Battery (451)
| The design of solar panel systems with a (lead-acid) buffer battery is normally such that the battery is charged even when there is not...
| Together with a small program running under DOS, the circuit discussed in this article acts as an ADCbased voltmeter that allows you to ca...
| Although you may well be the proud owner of the very latest NiCd battery charger, you may still come across the odd 'incompatible' batte...
| Lead-acid batteries must not be discharged deeply. In the best case, this leads to an irreversible loss of capacity; in the worst case,...
| This design is based on the celebrated 555 timer IC, and changes a positive voltage of 9 V into a negative one. A low-power dc-dc conver...
| We are surrounded by batteryoperated equipment of all kinds, and this array is growing still. Manufacturers and designers lean over back...
| A pan pot enables a monophonic input signal to be positioned where desired between the stereo loudspeakers. When P1 (see diagram) is in...
| How many different conditions do you reckon may be signalled with just one LED? Two, maybe three? Using this simple circuit, a lot more!
| The design of the charger is similar to that of many commercially available chargers. The charger consists of a mains adaptor, two resis...