Burkhard Kainka (226)

1-05-2001 | What do capacitors, electret microphones and passive infrared sensors have to do with one another? It is often interesting to go back to fir...

1-03-2001 | In previous articles in this series we have described an A/D converter based on a counter. A ‘real’ A/D converter, however, converts a volta...

1-02-2001 | In the previous instalment we measured capacitances and resistances. You may have wondered if this was all worth the effort, when accurate a...

1-01-2001 | So far in this series we have used the PC only with digital signals: switching, monitoring and counting. Now we turn to the analogue domain:...

1-12-2000 | Inductors can be mimicked quite easily using operational amplifiers. The circuit shown here was developed to have an inductance of 1000 H (s...

1-12-2000 | So far we have studied the characteristics of the RS-232 outputs in detail. Now it is the turn of the inputs. The standard demands that an i...

1-11-2000 | Building radio receivers is the classic introduction to electronics, usually by constructing simple detector type receivers for medium wave...

1-11-2000 | In this third part we look at the output signals of the RS-232 interface. In order to control devices with these output signals, it is neces...

1-10-2000 | In this second part we concentrate on software. We take a closer look at the IOtest program presented in the first article and use simple pr...

1-10-2000 | In the first part of this article we looked at the electrical characteristics of the USB standard. In this part we investigate the software...