10 важни съвета при работа с LED лампите

10 важни съвета при работа с LED лампите

LED лампите вече не са такава новост и техническата информация за тях постепенно се натрупва. Като всяко високотехнологично изделие, а те безспорно са такова, LED лампите имат специфични особености, които трябва да се имат предвид, за да постигнат удивително дългия си живот, който е важна тяхна характеристика. Тук ще разгледаме 10 от най-важните особености при […]

Infrared (PIR) sensors

Infrared (PIR) sensors

Infrared (PIR) sensors are used for detecting motion and reacting to infrared rays. As any living body is a source of such rays, the infrared sensor detects them and starts a given device, according to the scheme in which it participates. If the switched on device is an alarm system, the PIR sensor is called […]

Liquid level controller with a float

Liquid level controller with a float

In industry various devices and systems are used to regulate liquid levels – electronic, electrical, mercury, electromechanical and mechanical. Electronic ones are the most accurate, but their price is relatively high, and in most cases the tolerance of the controller allows some deviation. One of the controllers that is most widely used in the household […]

Frequency inverter

Frequency inverter

Induction three-phase motors are widely used in industry because of their simple structure, extremely high reliability and low cost. The speed of the induction three-phase motor is determined by two factors: the frequency of the current and the number of poles. With conventional electric drives the frequency is constant – about 50 Hz, and once […]

Emergency supply for circulator pumps and fireplaces with water jacket

Emergency supply for circulator pumps and fireplaces with water jacket

During the working process of fireplaces with water jackets connected to a central heating, the uninterrupted operation of the water circulator pump is essential. If this pump stops, the water system will not be able to cool itself in the radiators, which can lead to overheating in thispart of the system, which is set closest to […]

Differences between pure sine-wave inverters and modified sine-wave inverters

Differences between pure sine-wave inverters and modified sine-wave inverters

Very often when choosing an inverter we ask ourselves the question whether to buy a pure sine-wave inverter or choose a modified (quasi) sine-wave one, which is much cheaper. Here we have already explained how to select the power of the inverter, depending on the nature of the load. Now we will explain in details […]

Brennenstuhl power strips in Vikiwat

Brennenstuhl power strips in Vikiwat

The German company Brennenstuhl is already known on the Bulgarian market with the high quality and diversity of its products. Brennenstuhl manufactures power strips and extension cables for different working conditions and with different parameters. All products of the company not only meet European quality standards, but also greatly exceed them. Brennenstuhl power strips and […]

Rectifiers. Graetz circuit and Illarionov circuit

Rectifiers. Graetz circuit and Illarionov circuit

Rectifiers convert AC power to DC power. In most rectifiers the resulting output current is not constant but pulse current. Different filters are used for smoothing the pulsations. There are many types of rectifiers. Here are some popular classifications: According to the type of the device – mechanical, thyristor, transistor, diode rectifiers; According to the […]

Led types

Led types

LED tapes invade so quickly our everyday life that now there is hardly anyone who hasn’t seen them somewhere. Most often LED tapes are used in interior designer lighting of homes, restaurants and bars, cleverly hidden in false ceilings, behind baseboards and other elements of the interior. As they are very fine and flexible, they […]

Thyristors and triacs

Thyristors and triacs

Thyristors are controllable multi-layer diodes. They are semiconductors and have a non-linear volt-ampere characteristic with two stable states – of low and high conductivity. Thyristors are key elements in heavy-current engineering. They are used as a substitute for various contactors and relays in trigger circuits, regulators, rectifiers, inverters, automatic devices, etc., because they lack switching […]

Electronic components

Electronic components

The constituent parts of an electronic circuit are called electronic components. Electronic components are the building blocks of electronics. They have two or more terminals and are connected by soldering. Printed circuit boards and electronic components are used for building electronic circuits that perform certain functions. Increasingly, they are integrated into microprocessors, miniaturize and become […]

Automation Part II

Automation Part II

 Joysticks. Joysticks are manual controllers for smoothly triggering devices and electrical machines in different directions. They are used where the direction of movement of the controlled object coincides with the direction of movement of the joystick. They are used for lifting and lowering objects or part of the controlled machine (crane, electric truck) or moving […]

Automation Part I

Automation Part I

Automation or automatic control is the strong reduction or even the exclusion of human intervention in various industrial and technological processes associated with manufacturing, design, scientific research, extraction of minerals, the control of machinery, processing and gathering information, etc. Automation includes not only technical equipment and electronic devices but also systematic, statistical and mathematical methods […]

Motor protection

Motor protection

Motor protection is necessary and indispensable to use together with other automation tools. It is intended to protect motors and engines from overheating and overloading. Motor protection is installed quickly and easily to various contactors and provides trouble-free operation of engines. The name „motor“ means that this protection is provided to protect electric motors or […]

Switches and indicators

Switches and indicators

Switches are used to control motors, actuators, relays, contactors and consumers and to commutate control circuits in industry and households. When push button switches are equipped with a lamp, they also serve as indicators for the presence of current in the circuit. Switches and indicators Switches and indicators can be categorized into the following main […]