This is a circuit of unprecedented light effects - a lamp suddenly lights up with maximum brightness and then fades slowly out. After a few seconds it goes back on, repeating the cycle. The system supports lamps up to 1600 W in the 220 V network (half on the 110 V network) and can be used at home, as a window decoration or in an interesting and mysterious lamp.
One of the most important phenomena we observe in magnetic materials is hysteresis. Knowing exactly what it means is essential for everyone working with inductors and transformers, especially in modern circuits such as switched-mode power supplies, frequency inverters and AC / DC converters. In this article, we review the basic concepts of magnetism and explain what hysteresis is.
A special National Semiconductor Integrated Circuit enables the activation of LEDs with 1.5 V voltages opening up to a huge range of interesting assemblies. See in this article the basic design of a flasher with this component.
Ultra-sensitive directional microphones can be used in many interesting practical applications. One is spying, when we focus on people talking at a distance and we can hear everything they say. Another is in the recording of sounds of nature and finally we have the possibility of installing the system in a robot for detection of remote sounds. See in this article how you can build a simple parabolic microphone using common components.
In the analysis of digital logic circuits, it is fundamental to have a logical level analyzer. However, if a sophisticated instrument with multiple inputs and the possibility of dynamically analyzing a circuit is not available, a logical probe may be useful. In fact, a probe can complement the use of an analyzer by doing parallel tests independently. The probe we describe works with voltages from 3 to 15 V and has a very high input resistance.
In recent years, the Arduino development platform has grown remarkably. This was due to its easy handling, hardware and software contributions and interest from companies such as Intel, Microsoft, Texas Instruments, etc., in adapting their products to this platform. One of the most used boards is Arduino Uno, whose core microcontroller is Atmega328p. In this article, we will learn about its internal capabilities and microcontroller architecture, which are very useful when designing electronic systems.
Read more: Getting to Know the Core of the Arduino Uno Atmega328p Microcontroller (MIC025E)
We find this circuit in a Radio Electronics of July 1984. It consists of the traditional version of 1 A...
The purpose of this circuit is to regulate the output voltage of a source at 11.4 V or other...
This adjustable source was found in a 1979 documentation, but all components are still common...
We found this circuit in a 1987 Hands On Electronics. It was indicated at the time to power...
The power source shown for powering for small TTL circuits was found on a Radio Electronics...
IGBTs are widely used in frequency inverters, power controllers, switched sources and DC/DC...
This oscillator can run in frequencies up 10 MHz depending on the Power supply voltage. The 1 µF...
This one-digit counter is part f the samples bench of the MultiSIM in one of its versions. The...