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Automotive power amplifiers. Schemes, articles, descriptions

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Automotive power amplifiers

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Electrical equipment of micro hydro power plants

Section Alternative energy sources. A hydro generator is an electric current generator driven by a hydro turbine. Typically, a hydro generator is a synchronous generator (Fig. 31), the rotor of which is connected to a hydro turbine (directly or through transmission mechanisms). It is also permissible to use an ordinary asynchronous electric motor in generator mode, that is, the rotation of this electric motor from a hydraulic turbine will also produce electric current, but in asynchronous mode (Fig. 32). However, their use is limited by the fact that they are active power generators and reactive power consumers. Therefore, asynchronous generators can only work in a system where there is a source of reactive power. Reactive power comes from capacitors connected in parallel with the load, or in order to improve the operational properties of the asynchronous generator, additional capacitors are installed in series with the load ... >>

Cell phone charger with status indication and automatic output current adjustment

Section Chargers, batteries, galvanic cells. As you know, cell phones come with their own chargers. These chargers cannot be called universal. Since there are many varieties of cell phones, the voltage of their batteries is also different. For example, a Motorola cell phone cannot be charged using a Samsung or Sony Ericsson cell phone charger, not only because the phones have different connectors for connecting external power, but, most importantly, because these phones have different nominal battery voltages. ... >>

Powerful tube amplifier

Section Tube power amplifiers. The result is an amplifier with a sound that (with due care) may well claim to be hi-end,) The amplifier is absolutely stable, so it can be used both with deep OOS and without it at all - the linearity of all cascades ensures low distortion and with open loop OOS. From two 6P3S, I managed to get> 150 watts, from two 6P45S -> 220,), and in the version with grid currents (especially for musicians) - 400 watts of peak power! But that scheme is already noticeably different from the one shown. ... >>

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Articles on car power amplifiers

Articles on car power amplifiers, car power amplifier circuits, descriptions of car power amplifiers: 24 articles



All articles on power amplifiers



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

Banana skin flour 07.10.2022

American researchers made flour from a banana skin and added it to the dough. The biscuits they made turned out to be healthier than the biscuits made from wheat flour. To make flour from banana skins, the researchers dried and ground the skins of ripe bananas into a fine powder.

By mixing flour with butter, milk powder, powdered sugar, vegetable oil and wheat flour, they baked a batch of cookies. Scientists have found fiber, magnesium, potassium, antioxidants and other important nutrients in banana peel flour.

In addition, biscuits made with banana peel flour were healthier, lower in fat and protein, higher in phenols, and better in antioxidant activity than regular biscuits.

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