More about design (647)

1-04-2006 | If a temperature-stable reference voltage is wanted in an analogue circuit, the usual choice is a device with an integrated band-gap referen...

1-04-2006 | If you want to apply computer control to a solenoid valve or another DC load there is no need to start looking for an expensive measurement...

1-04-2006 | The most dreadful electronics part is perhaps the toroidal core. Anyone who has wound one themselves can relate to that. Particularly if mor...

1-04-2006 | Occasionally there is the need to charge a battery from a laptop, mobile phone or PMR handheld using an ordinary laboratory power supply. It...

1-04-2006 | We received a surprising tip from an amateur radio operator for the easy removal of oxide and grime from aluminium, namely with the aid of b...

1-03-2006 | Are eight-bit processors something from the past or is it still possible to do something useful with them? Elektor Electronics went looking...

1-03-2006 | If a relay is driven by a transistor switching stage it is usual to connect a flywheel diode in parallel with the coil to short out the back...

1-03-2006 | When dealing with relays we distinguish between the pull-in voltage and the hold voltage. Depending on the type of device, the latter is fro...

1-03-2006 | Opamps seldom have an output current drive capability of greater than about 12 mA, and so they are not suitable for use in 20 mA current loo...

1-02-2006 | A few months while scrutinising a great design for a pulse-width modulated audio amplifier with a 2x100 W power rating and a very small encl...