Display driver ICs are available in several standard implementations. This circuit makes use of a GAL 22V10 to drive two 7-segment displays without multiplexing. A 4-bit binary code at input... Read more
The use of solar photovoltaic (PV) energy sources is increasing due to global warming concerns on the one hand, and cost-effectiveness on the other. Many engineers involved in power electron... Read more
Some microcontroller applications require status information or other important data to be stored to EEPROM immediately as a power to the equipment is turned off or fails. When power is resu... Read more
Your everyday 7805 regulator is not the best choice for powering accurate measurement circuits and A/D converters, mainly because it generates too much noise, and exhibits spurious behavior... Read more
This all-analog, microcontroller free (!) project got designed in response to cries for help from a diehard model plane enthusiast on the Elektor staff. He likes to fly large high powered mo... Read more
This simple circuit is designed for use with all kinds of DC motors up to 40 amps. Basically, it’s just a simple oscillator driving a bunch of power MOSFETs. The oscillator is a rudimentary... Read more
A step-up or boost converter circuit converts a low voltage into a higher value output voltage. The circuit consists of an inductor, a capacitor, a diode and a switch (transistor) that are t... Read more
These days you can buy various types of LED garlands at a reasonable price. With these, you can illuminate various objects indoors or outdoors with interesting lighting effects. When you use... Read more
This circuit is based on a design for a low dropout voltage regulator in the book 303 Circuits (published by Elektor in 1998). The author adapted the design to make the output voltage adjust... Read more
To monitor the filling of a bath, a water tank, or a swimming pool, or to warn when a gully is overflowing, here’s a very simple water level detector built around a CD4011 CMOS quad Gates IC... Read more
