More about battery (489)

1-02-2001 | Electric torches, watches, pocket calculators, toys and personal stereos, they all need a particular type of battery to do their job. In som...

1-12-2000 | With just a low cost DC adapter and the circuit described here it is possible to build a low cost stabilised, uninterruptible 9 V supply. On...

1-12-2000 | The Over-the-Top type of operational amplifier is ideal for use as a current sense for battery charger applications. The design described he...

1-07-2000 | The LM4050 from National Semiconductor is a high precision micropower shunt voltage reference in a sub-miniature, surface-mount, three pin,...

1-07-2000 | The battery discharger published in the June 1998 issue of this magazine may be improved by adding a Schottky diode (D3). This ensures that...

1-07-2000 | Some workbenches can’t help ending up looking like a rats nest of cables and equipment, so its always an advantage if a piece of mains equip...

1-07-2000 | This time, Velleman have sent us a car burglar alarm construction kit for evaluation. This is a fairly simple but highly functional circuit,...

1-05-2000 | Since the introduction onto the world markets of the Li-ion battery in the early/mid 1990s, there have been no dramatic developments in batt...

1-04-2000 | It’s often the small, everyday things that turn out to have interesting features when you examine them more closely. In any case, here you c...

1-02-2000 | The integrated output amplifier described in this article consists of little more than one integrated circuit. It is intended especially for...