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Lighting. Control schemes. Schemes, articles, descriptions

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Lighting. Control schemes

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Switching power supply with half-bridge converter



Section Power supplies. This circuit of a switching power supply with a half-bridge converter with an adjustable output voltage without stabilization is used to power a soldering station. The construction and adjustment of this power source does not cause difficulties, which is its main advantage. The control unit is made on the KR1156EU2 chip, which is a high-frequency one. PWM controller optimized for building push-pull high-frequency switching power supplies. the scheme of the device is shown in fig. 5.23 ... >>

Device for remote monitoring of the health of piezoelectric sensors



Section Security devices and signaling of objects. The danger of the consequences of an accident makes it necessary to impose increased requirements on the reliability of the measuring channel and, above all, the sensor, since it is operated in the most difficult conditions that exist at this facility. There is a need to control its properties as a means of measurement more often than is done with periodic (usually once a year) verification. Since the sensor is often installed in a hard-to-reach place (for example, under the casing of the unit), control must be carried out remotely. The control method [1], implemented in the described device and making it possible, is based on the fact that the piezoelectric transducer of the sensor is reversible, it generates an electrical signal when it is mechanically acted upon and experiences mechanical deformation when an electrical voltage is applied. In both cases, the level of response to the impact is determined by the same coefficient, called the piezo-modulus ... >>

AON-Z80 interface



Section Telephony. The interface is designed to connect the Z-80 AOH product to an IBM PC/AT computer (hereinafter referred to as PC) in order to enter information about the caller into the PC. The interface uses the LPT1 port to input information from the AOH. The operating principle of the INTERFACE is to read information from the segment register to the ALS318 LED indicator, encode the data with a 5-bit code and then transfer it through decoupling elements for digitization in the PC port ... >>

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Articles on lighting control schemes

Articles on lighting control schemes; schemes of lighting devices; descriptions of lighting devices: 226 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

K70 RGB Pro Mechanical Keyboard 21.02.2022

Corsair has released the K70 RGB Pro gaming keyboard with Cherry MX switches: Brown, Red, Speed, Blue or Silent.

With Axon technology, the polling rate can reach 8000Hz (4000Hz for keystroke scanning).

The Corsair K70 RGB Pro is a full-sized keyboard with a numeric keypad. There is a removable magnetic palm rest and built-in 8 MB memory capable of storing dozens of user profiles.

The case is made of aluminum, and each key is equipped with an individual RGB backlight. The resource of switches is up to 100 million clicks. The caps are made of PBT plastic.

The price of new items is $160.

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