| Most meter modules using a liquid-crystal display (LCD) and some using a light-emittingdiode (LED) display need a power source that is is...
| Most meter modules using a liquid-crystal display (LCD) and some using a light-emittingdiode (LED) display need a power source that is is...
| One of the problems that designers of portable equipment face is generating a regulated voltage whose level lies between those of a fully...
| Yuasa, Kobe, Sonnenschein and Varta are but a few of countless manufacturers of sealed lead-acid (SLA) batteries. Although these b...
| Count Alessandro Giuseppe Anastasio Volta (1745–1827) belonged to an aristocratic family and was Professor of Physics at the universities...
| The voltage step-up converter described in this article is a transformerless design based on just one integrated circuit and a handful of...
| 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...