| Halogen-lamps, particularly highwattage ones, tend to draw very high currents when they are cold, because they then have a very low resis...
More about Battery (451)
| Model aircraft tend to be realistic reproductions of the real thing. That means, among others, that starting the petrol engine must be d...
| The perpetual difficulty in designing fast NiCd chargers is determining when the battery is charged, that is, when to stop charging.
| This handy circuit is intended for battery-operated appliances. lt functions as a touch-operatedsupplyon switch and delayed supply offsw...
| Many electronics designers give little or no thought during their work to the various types of battery now available, Battery manufacture...
| A handy square-wave generator is described which provides fifty-seven stable frequencies for the testing of digital circuits. It is batter...
| In older cars, the battery charging voltage is controlled mechanically. The regulator consists of a relay that switches the stator windin...
| Simple battery chargers and power supplies are not normally provided with a current Iimiter. In many cases, however, it would be advanta...
| Various types of dry and rechargeable battery (with an e.m.f. of
| The regulated power supply and four identical current sources shown in the diagram enable the simultaneous charging of four 9-volt NiCd b...