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Power supply. Schemes, articles, descriptions

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Electric power supply

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Thyristor relay for vehicle turn signal

Section Car. Electronic devices. A non-contact signaling relay for turning a car can be designed using silicon controlled diodes - thyristors. A diagram of such a relay is shown in the figure. The relay is a conventional multivibrator on transistors T1 and T2, the switching frequency of which determines the frequency of flashing of the lamps, since this multivibrator controls the DC switch on thyristors D1 and D4. Any low-power low-frequency transistors can work in a multivibrator ... >>

Converter from 50 MHz to 24 MHz

Section Radio reception. The converter from the 50 MHz to 24 MHz range, proposed by F6HCC, is assembled on the UL1042 chip. The inductors are wound turn to turn on frames 8 mm in diameter with adjusted cores according to fig. 59. L1 - 3, L2 - 3, L3 - 9, L4 -15, L5 - 3 turns. L3 is wound with a wire with a diameter of 0,5 mm, and the rest - 0,2 ... 0,3 mm ... >>

Video signal transmitter on the KR1043XA4 chip

Section Television. The transmitter operates in the UHF range and is built on one chip and two microwave transistors. It provides the ideal quality of a color picture at a distance of about 50 m. The maximum range depends on the sensitivity of the TV, the antennas used, and for a color image it is 300 m, and for black and white - more than 500. The schematic diagram of the transmitter is shown in the figure ... >>

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Articles on power supply

Articles on power supply; power supply schemes, power supply descriptions: 8 articles



All articles for an electrician

Regulatory documentation for an electrician



Latest news of science and technology, new electronics:

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 ... >>

High Energy Density Capacitor 17.05.2024

Energy plays a key role in many aspects of modern life, and the ever-increasing demand for efficient and fast-charging power sources is driving innovation. Researchers at the McKelvey School of Engineering at Washington University in St. Louis have taken a significant step forward with a high-energy-density capacitor that promises to revolutionize the world of energy. A team of scientists from the McKelvey School of Engineering at Washington University in St. Louis presented the results of their latest research on heterogeneous thin-film structures for capacitors. Researchers, working with ferroelectrics, inadvertently created a capacitor with an amazing energy density that is 19 times higher than that of conventional elements. This breakthrough opens up new prospects for the development of fast-charging batteries, which are so necessary in the modern world. Capacitors play a key role in various devices, providing stable ... >>

Causes of conflicts between brothers and sisters 16.05.2024

Family relationships are often complex and multi-layered, and conflicts between siblings are no exception. Research in this area can help us understand what factors underlie these conflicts and why they occur so frequently. Let's look at some of the findings from psychologists at Arizona State University. American psychologists from Arizona State University conducted a study aimed at identifying the causes of conflicts between brothers and sisters. They found that different forms of violence, whether physical or verbal, did not depend on the gender of the siblings. This means that both girls and boys can exhibit aggressive behavior towards their loved ones. Other studies have shown that conflict between siblings often persists into adulthood, even as contact decreases. This indicates that people often follow established patterns of behavior formed in childhood. It was also found that, despite ... >>

Random news from the Archive

Computer of the future from Intel 22.04.2006

Just recently, Intel unveiled a platform codenamed Florence, billed as the "PC of the future", and now TCL (China's second largest electronics manufacturer), Alienware, Winbook and Medion are gearing up to ship products based on Florence's innovative design and technology. Intel Viv.

In the near future, other companies will join this four. Florence, resembling an LCD monitor with a thickness of only one inch, is a complete digital entertainment center and a full-featured PC. It has a 17-inch screen, a built-in TV tuner, a remote control and a wireless keyboard that folds away into the case.

It seems that the platform has very good prospects. Information about the directions of further development of this technology is already appearing. For example, some versions of Florence will have 19" and 23" monitors.

Manufacturers also turned to Intel for help in developing an interface for wireless access to cable and satellite TV.

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