Menu English Ukrainian russian Home

Free technical library for hobbyists and professionals Free technical library

Power regulators, thermometers, temperature stabilizers. Schemes, articles, descriptions

Free library / Schemes of radio-electronic and electrical devices

Power regulators, thermometers, heat stabilizers

We recommend reading in our Free Technical Library:

Nodes KB transceiver

Section Civil radio communications. In continuation of the publication of KB TRX nodes [1], I offer readers the final version of the main transceiver board. This node does not have any unique solutions, the circuitry is variations on the theme of TRX RA3AO and Ural-84M. The main requirements when choosing a design are repeatability, simplicity while maintaining the maximum achievable characteristics. The element base available today is used. Many decisions can be criticized - the creative process is endless, with constant alterations and improvements it is difficult to see the finished version, but it was necessary to stop and produce printed circuit boards in an industrial way ... >>

Adjustable voltage converter, 10-12/2-15 volts

Section Voltage converters, rectifiers, inverters. Those who have tried to use a car battery to power electronic devices are familiar with this problem - although the battery voltage should be approximately 12V, it can actually be 11V or even less (depending on the condition of the battery). But to power many devices, a stable voltage of 12 V or even 15 ... 18 V is required. The problem can be solved using a voltage converter. For small currents (maximum 1 A), the proposed circuit can be used. With an input voltage of 10 to 12 V, the output voltage can be adjusted within 2 ... 15 V. The circuit (Fig. 4.71) is very simple ... >>

Simple busy indicator

Section Telephony. Figure 1 shows a diagram of a simple busy indicator. It is intended for an apartment where several parallel-connected SLTs are installed in the rooms, and allows you to determine by the glow of the LED that one of the devices is talking or the handset is not in place. Unlike circuits similar in purpose, published in [L1 p. 140] and [L20 p. 46], this one consumes less current from the line in standby mode with fewer parts ... >>

To any article in this section and all Encyclopedias you can leave your comment.

Articles on power regulators, thermometers, heat stabilizers

Articles on power regulators, thermometers, heat stabilizers; schemes of power regulators, thermometers, heat stabilizers; descriptions of power regulators, thermometers, heat stabilizers: 136 articles



All articles on consumer electronics



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

Growing new teeth 10.04.2021

Japanese researchers have developed an experimental technique for growing teeth. Now this technology is being tested on laboratory animals. The method of treatment with monoclonal antibodies is described. These antibodies cause the body to grow new teeth.

As part of the study, it was possible to fix that blocking a gene called USAG-1 leads to an increase in the activity of bone morphogenetic protein. These molecules regulate the growth of various organs and tissues, including teeth.

However, this technology has several nuances. The fact is that the morphogenetic protein controls the development of a huge number of human organs. Interference with its work can cause many serious side effects.

During the experiments, the team tested a number of different monoclonal antibodies that alter the ability of USAG-1 to interact with bone morphogenetic protein. Fortunately, the researchers found a specific antibody that didn't cause side effects.

After that, the method was tested on animals. In this way, the team was able to stimulate tooth growth in laboratory mice. Subsequent experiments on ferrets yielded successful results.

Interestingly, ferret teeth are more like human teeth. Therefore, the success of research on these animals gives hope that the results of experiments with humans will also justify themselves.

Other interesting news:

▪ Ultra-thin voice recorder Sony ICD-TX660

▪ 3D printed stretchable artificial leather

▪ LIS2DTW12 - low noise accelerometer with integrated temperature sensor

▪ Giant Natural Particle Accelerators

▪ 75" 4K MicroLED TV

News feed of science and technology, new electronics


Interesting materials of the Free Technical Library:

▪ site section Infrared technology. Article selection

▪ Article Fearing the Abyss of Wisdom. Popular expression

▪ article Which Japanese managed to survive two atomic bombings in a row? Detailed answer

▪ article On duty at the escalator. Job description

▪ article Garland fault finder with indicator light. Encyclopedia of radio electronics and electrical engineering

▪ article The easiest radio modem for PC. Encyclopedia of radio electronics and electrical engineering

All languages ​​of this page

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