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Automobile. Electronic devices. Schemes, articles, descriptions

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Automobile. Electronic devices

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Automatic charger



Section Car. Batteries, chargers. The device allows not only charging, but also restoring batteries with sulfated plates due to the use of asymmetric current when charging in the charge (5 A) - discharge (0,5 A) mode for the full period of the mains voltage. The device also provides the ability to speed up the charging process if necessary. Unlike the schemes shown in Fig. 4.2 and 4.3, this device has a number of additional features that contribute to the convenience of their use. So, at the end of the charge, the circuit will automatically disconnect the battery from the charger. And if you try to connect a faulty battery (with a voltage below 7 V) or a battery with the wrong polarity, the circuit will not turn on in charge mode, which will protect the charger and battery from damage. In the event of a short circuit of terminals X1 (+) and X2 (-), the fuse FU1 will blow during operation of the device ... >>

Digital multimeter M830B. Wiring diagram, description, characteristics



Section Measuring technology. The M830B Digital Multimeter measures AC/DC current, AC/DC voltage, resistance, and bipolar transistor gain (h21). Also, using the M830B multimeter, you can ring semiconductor diodes. The measurement results are displayed on a digital 31/2-digit LCD display. The multimeter is powered by one 9V Krona battery. The M830B multimeter comes with a set of probes and instructions in Russian ... >>

Holiday garlands



Section Color and Music Settings. In order to obtain the greatest possible variety of lighting effects created by garlands or a garland of electric lamps, it is necessary to significantly complicate the design of the machine, to introduce scarce microcircuits into it. At the same time, an automaton of a wide variety of lighting effects can be built on microcircuits containing D-flip-flops. An example of this is shown in Fig. 1 scheme (size - 46 Kb). A distinctive feature of the proposed machine is that it has 36 lighting lamps, of which a panel or garland is composed. Each lamp can be ignited independently, making it easy to create a wide variety of light mosaics. ... >>

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Articles on automotive electronics

Articles on automobile electronic devices; diagrams of automotive electronic devices; descriptions of automotive electronic devices: 185 articles

 


 

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Latest news of science and technology, new electronics:

Blinking of the magician and his audience 19.05.2024

Magic and illusions have always captured the attention of the public, but what happens behind the scenes of the magician and in the brains of his audience? Scientists from the UK decided to solve this mystery by conducting a new study involving ten illusionists of varying experience. Illusionists, some of whom had been practicing magic for more than half a century, others for only six months, were invited to demonstrate the same trick - the popular coin trick. Recordings of their performances during training and on stage showed that each of them began to blink significantly more often at the moment of performing the trick. The study's findings indicate that magicians' blink rate may be related to unconscious aspects of their performance. At the same time, as scientists have found, spectators also begin to blink more often, following the movements of the illusionist. This observation supports the idea that magicians may be catalysts for blinking in audiences. Additional research has shown that magicians blink more often during ... >>

Ultrasonic coffee machine 19.05.2024

Iced coffee has become an integral part of coffee culture in recent years. Therefore, engineers from the University of New South Wales decided to improve its preparation. They have developed an ultrasonic coffee machine that reduces the cold brew time for ground coffee beans from 12-24 hours to significantly less time. Iced coffee, or "Cold brew", is popular due to its smoothness, low acidity and low bitterness. It is prepared by steeping ground coffee in cold water for a long time. Unlike traditional hot brewing, which often imparts bitterness to coffee, cold brewing extracts more delicate and complex flavors from the coffee beans. The innovative system, presented by a team of engineers, introduces ultrasonic technology into the coffee preparation process. The system uses ultrasonic waves to speed up the process of extracting oils, flavor and aroma from ground coffee. This allows you to significantly reduce the time ... >>

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 ... >>

Random news from the Archive

Embryo from stem cells 10.09.2023

Scientists from the University of Cambridge and the California Institute of Technology have made significant progress in growing artificial "near-embryos" from stem cells. The experiment provides new opportunities for research into genetic disorders, but also raises serious questions about morality and legality by creating structures that closely resemble the human embryo.

The embryo created had absolutely no relation to eggs or sperm and was devoid of a heart or brain development. However, it contained cells that form the placenta, the yolk sac, and the embryo itself.

This progress has been achieved by reprogramming embryonic stem cells. Despite this, the use of synthetic embryos for clinical purposes is not possible in the near future. This would be a flagrant violation of the law and it remains unclear whether such structures can develop further after the early stages of formation.

The researchers hope that these models will be useful in understanding the "black box" of human development, that is, the period after 14 days from the moment of fertilization, which is legally established as the deadline for culturing and studying embryos in the laboratory.

Robin Lovell-Bedge, head of the department of stem cell biology and developmental genetics at the Francis Crick Institute in London, explained: "The idea is that by creating normal human embryonic development using stem cells, we can gain a lot of information about the early stages of development and identify potential harm by avoiding the use of early embryos for research."

Previously, the same team of scientists demonstrated how mouse stem cells are able to develop into early embryo-like structures. These structures included the intestines, early forms of the brain, and even the beating heart. Currently, researchers are actively working on creating similar human models.

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