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Halogen lamps. Schemes, articles, descriptions

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Halogen lamps

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The principle of operation of the wind generator



Section Alternative energy sources. Wind generators are generators of electrical energy designed to convert wind energy into electrical energy. Today, wind turbines are a high-tech product with a capacity of 100 W to 6 MW per unit power. Wind generators of modern designs make it possible to use the energy of even the weakest winds economically - from 2 m / s. With the help of wind turbines, today it is possible not only to supply electricity to the network, but also to solve the problems of power supply to local or island facilities of any capacity. ... >>

Pulse Width Discriminator



Section for radio amateur-designer. The version of the discriminator offered to the attention of readers is designed to demodulate signals with pulse width modulation (PWM). It can be used to demodulate FM signals and in automatic frequency control devices, where the FM signal is pre-converted to PWM, in pulse band generators it can serve to maintain a constant duty cycle in the operating frequency range. The discriminator can be useful in automation devices, allowing you to do without adjusting the response threshold of devices, since it corresponds to a zero voltage level ... >>

Quasi-sensor switch



Section Clocks, timers, relays, load switches. The mains switch shown in the figure contains a small number of parts and consumes power only at the moments of switching on and off. It is made on the basis of a two-position polarized relay (remote switch) and is controlled by the SB1 button that is not fixed in the pressed position. When the button is pressed, the capacitor C1 is quickly charged through the resistor R1 and the diode VD2 with a positive (in relation to the lower - according to the circuit - the network wire) voltage, and after releasing it, it is discharged through the windings of the relay K1 connected in series. As a result, it works, and its contacts K.1.2 connect the load to the network. and K1.1 prepare the device for shutdown. The resistors of the divider R1 R2 are selected in such a way that the amplitude of the voltage rectified by the VD2 diode on the capacitor C1 does not exceed 40 V ... >>

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Articles on halogen lamps

Articles on halogen lamps; descriptions of halogen lamps: 21 articles

 


 

All articles for an electrician

Regulatory documentation for an electrician

 


 

Latest news of science and technology, new electronics:

The speech of sperm whales is similar to that of humans 18.05.2024

In the world of the ocean, where the mysterious and unknown coexists with the studied, sperm whales, with their huge brains, are of particular interest to science. Researchers, working with a huge array of audio recordings collected during the Dominica Sperm Whale Project (DSWP) - more than 8000 recordings, seek to unravel the secrets of their communication and understand the structure and complexity of the language of these mysterious creatures. By studying in detail the recordings of 60 sperm whales in the eastern Caribbean, scientists have revealed surprising features of their communication, revealing the complexity of their language. "Our observations indicate that these whales have a highly developed combinatorial communication system, including rubato and ornaments, which indicates their ability to quickly adapt and vary during communication. Despite significant differences in evolution, sperm whales have elements in their communication that are characteristic of human communication," says Shane Gero, a biologist at Carleton University and director of the CETI project. Issl ... >>

Electron spin for quantum information transfer 18.05.2024

The transfer of quantum information remains one of the key tasks of modern science. Recent advances in the use of electron spin to expand the capabilities of information transfer in quantum systems have become very important. Researchers at Lawrence Berkeley National Laboratory are pushing the frontiers of quantum information science by experimenting with the possibilities of electron spin. Electron spin, a natural quantum bit, is a potentially powerful means for storing and transmitting information in quantum systems. Magnon wave packets, collective excitations of electron spin, have revealed their potential to transmit quantum information over significant distances. The work of Berkeley Lab researchers has revolutionized the way such excitations propagate in antiferromagnets, opening up new prospects for quantum technologies. Using pairs of laser pulses, scientists disrupted antiferromagnetic order in one place and simultaneously studied it in another, creating ... >>

Sound-absorbing silk 17.05.2024

In a world where noise is becoming increasingly intrusive, the emergence of innovative materials that can reduce its impact is of great interest. MIT researchers have unveiled a new sound-absorbing silk fabric that promises to revolutionize quiet spaces. The Massachusetts Institute of Technology (MIT) has made significant breakthroughs in the field of sound absorption. Researchers have developed a special silk fabric that can effectively absorb sound and create cozy, quiet environments. The fabric, thinner than a human hair, contains a unique vibrating fiber that is activated when voltage is applied to it. This feature allows the fabric to be used to suppress sound waves in two different ways. The first method uses fabric vibrations to generate sound waves that cover and cancel out unwanted noise, similar to noise-canceling headphones. This p ... >>

Random news from the Archive

Electronic skin with LED indication 17.02.2018

The key purpose of the so-called "electronic skin" - a soft translucent material of small thickness with a set of sensors and electronic components - is the continuous monitoring of physiological parameters. However, a team of scientists from the University of Tokyo decided to improve the initial concept of such systems so that they could not only measure vital signs, but also display all the information collected.

The presented copy of the electronic skin is made according to the same principle as printed circuit boards. Thanks to several LEDs embedded in a flexible substrate, the system has learned to display the patient's heart rate in real time. At the same time, the design itself is made in such a way as to repeat the bends of the parts of the body selected for its placement and not cause discomfort during prolonged use of electronics.

To find out if the owner of a piece of electronic skin needs help, just look at its surface and decipher the readings on the makeshift LED-board. In addition, the system can be synchronized with mobile electronics and transfer data to a smartphone / tablet for their subsequent upload to the cloud.

If the quality of stretchable displays did not allow them to achieve a long service life without proper operating conditions, then the situation with e-skin and its LED indication is the opposite. In addition, its prime cost will be lower than all analogues known today due to the method of producing flexible substrates proposed by Japanese specialists.

The presented sample of artificial leather is not a concept at all, but a prototype, which should form the basis of the upcoming commercial sample and hit the market in the next three years. Potential users of this product are considered to be patients who prefer home treatment to staying in a hospital room.

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