More about design (647)

1-01-2004 | In electronics, filters are required for all sorts of applications, ranging from a simple audio circuit to the speech processor in a GSM pho...

1-04-2003 | This valve power amplifier is a push-pull design using two EL34s (or their 6CA7 US equivalents). It has been kept fairly simple to avoid pro...

1-01-2003 | Unless a loudspeaker uses a single full-range driver, a crossover will be needed to split up the audio spectrum into discrete bands of frequ...

1-01-2003 | The projects received in response to the Flash Design Competition we ran in the Summer Circuits 2002 issue were generally of a very high lev...

1-09-2002 | A continuity tester is a useful bit of kit for any electronics enthusiast but many of the off-the-shelf models you can buy suffer from one s...

1-11-2001 | This circuit can measure the capacity of individual cells as well as battery packs with an open circuit voltage of up to 35 V. The only requ...

1-05-2001 | There are a number of programs written for PCs and other computers that allow the user to design and debug fuzzy systems. Figure 1 shows a s...

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:...