More about design (647)

1-03-2008 | There is currently a good range of real-time clock chips available for use in microcontroller systems. One interesting, low-cost example is...

1-03-2008 | A PLL (phase locked loop) can also be used as a frequency multiplier. The multiplication factor is then determined by the divisor in the fee...

1-02-2008 | This simple circuit is capable of measuring frequency up to 1 MHz at 1 Hz accuracy without an additional divider or prescaler circuit. The c...

1-01-2008 | The inspiration for this design came from the author’s experience with a mini model helicopter (from Silverlit). This particular model has a...

1-01-2008 | This circuit was designed and used to transmit commands over LNB coaxial cable. An LNB (or LNC) is a low-noise block downconverter typically...

1-12-2007 | The ‘DI’ in the title stands for Direct Injection, a term used in audio engineering. Many DI boxes have appeared in Elektor over the years a...

1-11-2007 | Here we discuss an entirely different type of development kit compared to what we are 'normally' accustomed to. Most kits consist of...

1-10-2007 | It all started in September last year. Since then over 40,000 man-hours have been invested on the solar car by Solar Team Twente. They have...

1-10-2007 | In order to induce energy transfer from the old batteries into the rechargeable ones, a voltage difference must be established. Obviously, w...

1-09-2007 | The circuit described here is designed for use by laptop or notebook computers. It will automatically switch off all mains powered periphera...