Menu English Ukrainian russian Home

Free technical library for hobbyists and professionals Free technical library


ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
Free library / Schemes of radio-electronic and electrical devices

Rectifier for powering a tube-semiconductor transceiver. Encyclopedia of radio electronics and electrical engineering

Free technical library

Encyclopedia of radio electronics and electrical engineering / Voltage converters, rectifiers, inverters

Comments on the article Comments on the article

The rectifier for powering the tube-semiconductor transceiver provides, along with low-voltage voltage for powering microcircuits, a relatively high voltage for electronic tubes installed in the transmitter power amplifier.

Rectifier for powering a tube-semiconductor transceiver

The rectifier circuit has no features. The power transformer is assembled on a magnetic circuit ShL 25 x 32 Winding I contains 950 turns of wire PEV-2 - 0,64, winding II - 1250 turns PEV-1 - 0,33, winding III - 175 turns PEV-1 - 0,25, windings IV and V - each have 75 turns of wire PEV-1 -0,64, winding VI consists of 2 x 31 turns of wire PEV-2 - 1,12.

Transistors P213B of the stabilizer of the low-voltage source - 12 V must be placed on radiators with an area of ​​at least 100 cm2.

See other articles Section Voltage converters, rectifiers, inverters.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Machine for thinning flowers in gardens 02.05.2024

In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers. ... >>

Advanced Infrared Microscope 02.05.2024

Microscopes play an important role in scientific research, allowing scientists to delve into structures and processes invisible to the eye. However, various microscopy methods have their limitations, and among them was the limitation of resolution when using the infrared range. But the latest achievements of Japanese researchers from the University of Tokyo open up new prospects for studying the microworld. Scientists from the University of Tokyo have unveiled a new microscope that will revolutionize the capabilities of infrared microscopy. This advanced instrument allows you to see the internal structures of living bacteria with amazing clarity on the nanometer scale. Typically, mid-infrared microscopes are limited by low resolution, but the latest development from Japanese researchers overcomes these limitations. According to scientists, the developed microscope allows creating images with a resolution of up to 120 nanometers, which is 30 times higher than the resolution of traditional microscopes. ... >>

Air trap for insects 01.05.2024

Agriculture is one of the key sectors of the economy, and pest control is an integral part of this process. A team of scientists from the Indian Council of Agricultural Research-Central Potato Research Institute (ICAR-CPRI), Shimla, has come up with an innovative solution to this problem - a wind-powered insect air trap. This device addresses the shortcomings of traditional pest control methods by providing real-time insect population data. The trap is powered entirely by wind energy, making it an environmentally friendly solution that requires no power. Its unique design allows monitoring of both harmful and beneficial insects, providing a complete overview of the population in any agricultural area. “By assessing target pests at the right time, we can take necessary measures to control both pests and diseases,” says Kapil ... >>

Random news from the Archive

Tooth spies on a person 26.09.2013

A team of researchers from the National Taiwan University has developed a sensor designed to be embedded in the tooth. The sensor, using an accelerometer, is able to accurately determine exactly what actions the jaw performs: it participates in chewing, coughing, talking, smoking, eating, etc.

The sensor is small enough to fit inside an artificial tooth or inside a natural tooth. So far, the sensor uses tiny wires to transmit data to a computer, but the developers promise that the next prototype with the same dimensions will be equipped with a Bluetooth wireless transceiver. So far, the tooth sensor transmits information over thin wires, but in the near future the developers promise to introduce a wireless version.

The sensor works very simply. First, the scientists calibrated the device and recorded the accelerometer readings for a variety of human actions. Subsequently, a sensor installed in the jaw captures the accelerometer data and determines with high accuracy what the person is doing at the moment.

What would such a device be useful for? First of all for medical diagnostics. Such sensors may be needed by dentists to make a more accurate diagnosis when it is necessary to know a person's habits, the frequency of teeth grinding, eating, etc. Also, such devices can help the work of psychologists and nutritionists who need to control the patient's stress level and diet.

To test the accuracy of the instrument, the research team enlisted the help of eight volunteers. Subjects had a sensor attached to their teeth and were asked to perform several different activities for about 30 seconds: cough, chew gum, and so on. The accuracy of determining the type of movement was 93,8%.

The developers continue to work on improving the sensor and expect to soon have a wireless device that can fit in a conventional dental crown. In the future, it is possible that the functionality of such sensors will expand, for example, medical analyzers or a microphone will be added to them.

Other interesting news:

▪ Tesla will create its own drone

▪ Fish scale screens

▪ Lighting LEDs with an efficiency of 135 lm/W

▪ The impact of hugs on stress levels

▪ Light dosimeter

News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

▪ section of the site Grounding and grounding. Selection of articles

▪ article What are you making noise about, people's whirlwinds? Popular expression

▪ article How can a false pregnancy manifest itself in women? Detailed answer

▪ article Caterpillar for motonart. Personal transport

▪ article Determinant of the sequence of phases. Encyclopedia of radio electronics and electrical engineering

▪ article Simple radio station. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

Name:


Email (optional):


A comment:





All languages ​​of this page

Home page | Library | Articles | Website map | Site Reviews

www.diagram.com.ua

www.diagram.com.ua
2000-2024