More about design (647)

1-02-1996 | This competition entry describes a microcontroller driven switching clock (housekeeper) with a 2x16- character LC Display, input keys and tw...

1-02-1996 | If you are after great sound at an affordable price, go out and buy a pair of high-quality headphones. Next, you will need a dedicated hea...

1-02-1996 | This circuit, aimed at electronic and power electrical engineers, is a test and simulation instrument for ambitious experiments. In combinat...

1-02-1996 | This miniaturized motor controller uses pulse-width modulation (PWM) for loss-free speed control of d.c. motors up to about 40 amps. The e...

1-02-1996 | Most of today's 486 and Pentium PCs offer a 'Green Power' function which serves to switch off external components automatically when the c...

1-01-1996 | A triangular waveform generator can be converted into a very precise analogue-to-digital converter with the aid of a single resistor. This...

1-01-1996 | An 8-bit 50-MHz on PC parallel porl Logic Analyser for home application is always a uselul tool for small digital projects, especially in...

1-01-1996 | This design answers the widespread interest in applications involving smartcards. Chip-type telephone cards and credit cards catch the fan...

1-12-1995 | First, a big 'Thank You' to all of you who have taken the trouble of participating in the Contest. The jury of five had a tough time marki...

1-12-1995 | There are many kinds of transistor tester. Whatever kind is used, it is imperative that the transistor is inserted correctly into the test...