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Automobile. Accumulators, chargers. Schemes, articles, descriptions

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Automobile. Batteries, chargers

We recommend reading in our Free Technical Library:

Energy converters (inverters) for a solar battery or a wind generator



Section Alternative energy sources. To convert 12 or 24 V DC energy into 220 V AC, a voltage converter (inverter) is used. The power source for the converter is any device that provides the specified voltage - from the battery to the solar battery module and the wind generator. On sale there are inexpensive converters used for uninterruptible power supply of various consumers with power from several hundred W and several kW ... >>

Microcontroller capacitor capacitance meter



Section Measuring technology. The operation of the device is based on a well-known method for measuring the duration of charging and discharging a capacitor from a voltage source through a resistor of known resistance. The range of measured capacitance values ​​is from 1 nF to 12000 uF. It is divided into two sub-ranges, which are conventionally named nF and uF. To measure the capacitance of capacitors without soldering them out of the board, a small amplitude of the voltage across the capacitor is necessary so that the p-n junctions of semiconductor devices do not interfere with this process, so the reference source has a voltage of 0,5 V ... >>

Main amplifier for STV receiver



Section Television. The kit for receiving satellite TV programs includes a parabolic antenna, which is installed in such a way that it falls within the line of sight from the satellite, a downconverter and a tuner (internal unit). They are connected to each other by a coaxial cable, the length of which usually should not exceed 15...20 m, but in practice it can be longer. As a result, the signal arriving at the tuner is significantly attenuated, and the quality of the received image deteriorates. ... >>

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Articles on car batteries, chargers

Articles on automobile accumulators, chargers; schemes of car chargers; descriptions of car chargers, batteries: 49 articles

 


 

See also: Articles on chargers, batteries, galvanic cells

Articles on chargers, accumulators, galvanic cells; charger circuits; descriptions of chargers, batteries, galvanic cells: 246 articles

 


 

All articles on automotive electronics

 


 

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

PIC8F16 639-bit PIC microcontroller with Flash memory 25.06.2005

MICROCHIP has released an 8-bit Flash PIC microcontroller with a three-channel low-frequency repeater with an analog front-end and embedded Keeloq cryptographic peripherals.

All of this is done with MICROCHIP's low power nanowatt technology in a small 20-pin SSOP package. The PIC16F639 microcontroller is ideal for a wide range of security and general purpose applications.

This includes Passive Keyless Entry (PKE) and Tire Pressure Monitoring (TPM) automotive systems, property and identity recognition systems, and security systems such as smart keys, remote security sensors, etc.

The XNUMX-way repeater with an analog front end provides bi-directional low frequency communication, which is commonly used in PKE and radio frequency identification (RFID) systems.

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