More about magnet (157)

1-11-2004 | In the three-part article for the ClariTy 2 x 300-W final amplifier, the various input and output filters were not described. In this articl...

1-02-2004 | Surveys show that people are feeling increasingly less safe. Consequently, protecting property and buildings receives more and more attentio...

1-12-2003 | This circuit uses a step-up switch-mode regulator, which is usually used to produce a positive supply, to generate a regulated negative outp...

1-12-2003 | All electronic equipment these days must conform to the requirements of the electromagnetic compliance (EMC) regulations. A particular probl...

1-07-2003 | One of the author’s physics projects required an accurate 1-Hz (seconds) clock signal. Unfortunately, precision 10-MHz quartz crystals are e...

1-02-2003 | Digitising analogue sound media like vinyl records and magnetic tapes is a simple matter if you have a reasonably fast multimedia PC. After...

1-12-2002 | This proximity switch employs a reed switch as the sensor device and the good old CD4017 decade counter for pulse processing. When the circu...

1-11-2002 | Feared by many motorists (let those who have never driven too fast cast the first stone), the speed camera, usually containing a radar, is a...

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 | A survey of these essential electronic systems, how they work, and how they are used. Practical component values are given for each oscillat...