The advantage of using acoustic waves to measure the moisture content of soil is that acoustic waves measure the moisture content in a volume of soil that radiates outward from the acoustic... Read more
I want to share with you the stepper motor driver that I designed at the request of a teacher. It’s actually getting quite a lot. But because of the intensity of the work, I could fini... Read more
The loudspeaker protection circuit for transistor amps is a different development of the ” Delayed and Loud Speaker DC Protection Circuit ” application I have previously shared .... Read more
The read/write heads of a hard disk drive are moved back and forth over the magnetic platters by a linear motor. This motor consists of a coil that moves in a strong magnetic field, combined... Read more
To detect the arrival of a particular range of voltage(s) from the swing of an input signal, this circuit is used. Two Op-Amps in comparator mode are used in this circuit. A lower comparator... Read more
There are only a limited number of switching regulators designed to generate neg-ative output voltages. In many cases, it’s thus necessary to use a switching regulator that was actually desi... Read more
Physicians and repair engineers often use small light pens for visual examination purposes. Rugged and expensive as these pens may be, their weak point is the bulb, which is a ‘serviceable’... Read more
Electronics engineers very often need to measure low voltages with great accuracy, for example, the voltage from a pressure or temperature detector, or the output voltage of a Wheatstone bri... Read more
Klaus Jürgen Thiesler’s ‘2-Wire Interface’ was published in Elektor magazine in the form of both basic [1] and low-current [2] versions. Each variant used two transistors and a handful of ot... Read more
Armed with a Smartphone you can surf the Web, send emails, text, chat, download and listen to music, take and post photos and video clips, listen and view TV stations, navigate, place bets a... Read more
