Electronics 2024, November
The unit of current strength shows how much charge will pass through the cross section of the wire per unit of time. The current strength is denoted by the Latin letter I, it is a scalar quantity. The unit of current strength is determined by the ratio of the charge q passing through the cross section of a metal conductor to the time interval t during which the electric current passed through the conductor. Accordingly, the formula has the following form: I=q/ t
One of the basic devices in electrical and electronics is the DC rectifier. It is difficult to overestimate the benefits of its use, constant voltage is necessary to power almost all devices. The article discusses some principles of converting AC voltage to DC. Some practical examples of the use of these devices are also given
When the engine is running, not only torque energy is released, but also heat. To prevent the motor from overheating and working in its mode, a cooling system is provided. It consists of a water pump, which is driven by a pulley, a radiator (often two or three sections), pipes and many other elements. An important component in the design of the system is the thermostat. What is it and how to check it? We will talk about this in the course of our today's article
Today, LED strip will be used in many areas. Therefore, manufacturers produce various versions of this product. LED strip, the power of which varies over a wide range, is selected according to a certain technology. It will be interesting for everyone to know
The article is devoted to sensors for the boiler. The purpose of such devices, characteristics, types, principle of operation, etc. are considered
Water heaters for indirect water heating have recently been in great demand. In terms of dimensions, the models are quite bulky. Their rated power parameter starts from 2 kW. For large families, devices of this type are great
The article is dedicated to action cameras. The features of such models, the best manufacturers, user reviews and prices are considered
The article is devoted to wireless alarm systems. The most popular models, their equipment and features of operation are considered
Let's try to figure out what a remote-controlled smart socket is: types, types and characteristics of the device
Frequency converters are used to control asynchronous motors of various capacities. Models differ in the method of control, as well as the type of construction. To understand the frequency converters, it is necessary to consider specific modifications
A feature of synchronous electric motors is that the magnetic flux and the rotor have the same rotation speed. For this reason, the rotor of an electric motor does not change its speed when the load increases. On the rotor is a winding that creates a magnetic field
Technological progress is carried out through the study of physical phenomena, discoveries in the quantum field and other fields. At the same time, new devices and devices are invented, through which it is possible to conduct various studies and explain the phenomena of the microworld. One of these mechanisms is a harmonic oscillator, the principle of which was known even by representatives of ancient civilizations
In the design of the upper part of various rooms, ceiling lights are increasingly appearing. For stretch ceilings, LED lights are the safest option as they generate a small amount of heat
The article is devoted to analog video surveillance. The features of such systems, differences from digital cameras, reviews, etc. are considered
Described various modifications of such devices as the receiver "Tricolor TV". Technical specifications are given, recommendations are given regarding the choice
The article is devoted to car security systems. Considered recommendations for the choice of protective devices, features of different options, the best models, etc
Car alarm Starline B9: system features, benefits, installation recommendations. Complete set and functionality of the security complex
Lenovo K910 continues the line of smartphones from the Chinese manufacturer. Can he repeat the success of his predecessor? And is it worth the money? You will learn all this and much more from this article
The official debut of the Sony Xperia M2 Dual smartphone, which is reviewed in more detail below, took place last year. Compared with its predecessor (model Xperia M), the novelty has increased in size. In addition, the developers have slightly improved some of the characteristics of the phone
The article discusses the Bosch BenvenutoClassic TCA5309 coffee machine. The main features of the machine, its ergonomic properties are considered and reviews of those who have already purchased it are given
The choice of a coffee machine is determined by three factors: reliability, quality and price. It is not at all necessary to buy an expensive fancy unit for operating a house
It is often difficult to dry your laundry. This issue is especially acute in the cold season
In this article, the "Start-Stop" button will be presented to your attention. It allows you to turn the ordinary life of a motorist into driving pleasure, and also make our world cleaner
Sometimes there are situations when I would like to take music with me to nature, on a trip. What if it was a miniature speaker connected to a mobile phone? If you want to learn how to make a speaker for your phone with your own hands, then this guide is especially for you
The article is devoted to industrial controllers. The principle of their operation, device, manufacturers and applications are considered
This article talks about the advantage of the Panasonic bread machine over a conventional oven
The article describes Philips products, namely the iron it produces, and also provides customer reviews of these products
How much time you can spend on choosing an inkjet printer is unknown. It seems that among all the variety you can spend hours watching the emergence of new models. But even with the choice of paper for an inkjet printer, you will have to get confused, because we have unusual equipment in front of us. He has his own requirements for the paints used, and for the desired material
Transformers OSM is a multi-purpose transformer up to 4 kVA with one or more secondary windings designed for different voltages. Used to power lighting, automation or signaling
To choose a good breathalyzer for your company or home, you need to understand how such devices work and what types they are. In this article, you will learn by what criteria you need to choose a breathalyzer and get acquainted with the list of the best devices in different price categories
Are you faced with the choice of such an indispensable and multifunctional device as a multicooker, and do not know which one to choose? Then we offer an overview of the best helpers in the kitchen according to the main characteristics. An important selection criterion is the power of the device. What does this indicator affect and how to choose the best model?
This article focuses on the use of low-temperature thermal resources, the use of thermoelectric generator (TEG) technology, which can become a key in creating new autonomous energy sources, far exceeding the efficiency of devices using the sun, water, wind
Air conditioner without an outdoor unit is also called mobile. It does not require special skills for installation and is installed in a place convenient for you
Choosing an LED flashlight but can't decide on a model? We offer an overview of the necessary characteristics that must be in the lantern, what you need to pay attention to when choosing. We will also consider the models on the market and an overview of the best manufacturers of LED lights
Model RMC M4502 from the company "Redmond" is a multifunctional multicooker with many cooking programs. However, the main feature of this device lies in the new "Multi-cook" function, which allows you to choose both the temperature and the cooking time
Brief information about the company. Why do you need a humidifier? What humidifiers are available today. The best and worst reviews. What to choose?
In the 1980s, all of America was embraced by the idea of he althy eating. This was the impetus for the development of a new wonderful device - aerogrill
The article will consider the TTL logic, which is still used in some branches of technology. In total there are several types of logic: transistor-transistor (TTL), diode-transistor (DTL), based on MOS transistors (CMOS), as well as based on bipolar transistors and CMOS. The very first microcircuits that were widely used were those that were built using TTL technologies. But you can’t ignore other types of logic that are still used in technology today
Modern set of repair and construction equipment is hard to imagine without such an important tool as a hammer drill. The principle of its operation is based on the functions of a conventional electric drill, which are expanded by reciprocating impact capabilities. A special mechanism is responsible for them, which converts the rotational movements of the shaft into shock. If repair of the perforator is required, then this particular unit most often fails, because it is subjected to increased loads
Telefunken TVs have not yet received wide distribution in the domestic market of electronic equipment. But given the fact that this manufacturer is from Germany and has already achieved certain achievements on the world stage, it is a matter of time to increase their presence in the domestic market