More about DC (398)

1-12-2002 | A RF probe is a handy piece of test equipment that converts a high frequency signal to a DC voltage. In this way it is very easy to measure...

1-12-2002 | The LT1970 from Linear Technology (www.linear-tech.com/pdf/1970f.pdf) is a power opamp with adjustable current limit, available in a 20 pin...

1-12-2002 | Some time ago, the author built a copy of the IGBT Power Amp, a final amplifier design described in the June 1995 issue of Elektor Electroni...

1-07-2002 | This energy saving, 12-V controller is nearly universally applicable. In addition to controlling battery powered lighting in a car, boat or...

1-07-2002 | A universal voltage tester should respond to both dc and ac voltages. The usual types with glow-discharge lamps only work with voltages grea...

1-02-2002 | An adjustable load resistance is indispensable for the realistic testing of power output stages. This circuit provides an electronic alterna...

1-12-2001 | There are very many switching regulator ICs for reducing a dc voltage. In the ‘step-down’ operating mode, an internal switch connects the in...

1-11-2001 | Notebook PCs are great but stray too far from a source of power and it’s not long before low-battery warnings start to appear. Mains adapter...

1-10-2001 | Three-legged voltage regulators are known as handy and straightforward components. There are, nevertheless, still a number of interesting fa...

1-07-2001 | A simple proportional fan controller can be built using the MIC502 from Micrel (www.micrel.com). With this IC the speed of the fan runs slow...