A simple voltage regulator for 45 volts. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Surge Protectors
Comments on the article
The circuit is a simple voltage regulator.
(click to enlarge)
The operating voltage range from 30 to 60 volts is determined by the selection of zener diodes. The elements indicated in the diagram provide an output voltage of 45 volts. Transistor Q2 needs to be mounted on a heatsink.
In order to reduce the power dissipation on the transistor, a resistance is included in the collector circuit of the transistor, which is gained by selecting resistors connected in parallel.
To reduce losses and the amount of heat generated on transistor Q2, it is desirable that the difference between the input and output voltages be within 3-5 volts.
See other articles Section Surge Protectors.
Read and write useful comments on this article.
<< Back
Latest news of science and technology, new electronics:
Artificial leather for touch emulation
15.04.2024
In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>
Petgugu Global cat litter
15.04.2024
Taking care of pets can often be a challenge, especially when it comes to keeping your home clean. A new interesting solution from the Petgugu Global startup has been presented, which will make life easier for cat owners and help them keep their home perfectly clean and tidy. Startup Petgugu Global has unveiled a unique cat toilet that can automatically flush feces, keeping your home clean and fresh. This innovative device is equipped with various smart sensors that monitor your pet's toilet activity and activate to automatically clean after use. The device connects to the sewer system and ensures efficient waste removal without the need for intervention from the owner. Additionally, the toilet has a large flushable storage capacity, making it ideal for multi-cat households. The Petgugu cat litter bowl is designed for use with water-soluble litters and offers a range of additional ... >>
The attractiveness of caring men
14.04.2024
The stereotype that women prefer "bad boys" has long been widespread. However, recent research conducted by British scientists from Monash University offers a new perspective on this issue. They looked at how women responded to men's emotional responsibility and willingness to help others. The study's findings could change our understanding of what makes men attractive to women. A study conducted by scientists from Monash University leads to new findings about men's attractiveness to women. In the experiment, women were shown photographs of men with brief stories about their behavior in various situations, including their reaction to an encounter with a homeless person. Some of the men ignored the homeless man, while others helped him, such as buying him food. A study found that men who showed empathy and kindness were more attractive to women compared to men who showed empathy and kindness. ... >>
| Random news from the Archive Sheep sowers
13.12.2006
How effective can be the transfer of plant seeds by animals, shows an experiment conducted by ecologists from the University of Madrid. They used the seasonal movement of sheep from winter to summer pastures practiced in some areas of Spain.
About XNUMX Merino sheep are regularly driven from the Cantabrian Mountains in northern Spain to Extremadura in the southwest. The seeds of wild carrots, clover Trifolium angustifolium, plantain Plantago lagopus and mouse barley Hordeum murinum were introduced into the fleece of several rams, labeled with harmless paint.
The journey of 400 kilometers took 28 days, and by the end of it, 47% of clover seeds, 12% of carrots, 9,5% of barley and 5% of plantain remained. Even when the sheep were shorn in May, 38,1%, 6,93%, 5,06% and 2,15% of the seeds of these plants remained in the wool, respectively. For all four plant species, these are record distances for transferring seeds to animals.
The experiment proved that the migration of herds of wild ungulates could be of great importance for the dispersal of plants.
|
Other interesting news:
▪ Radiation for electronics is more dangerous than thought
▪ Intel develops new SSD specifications for ultrabooks
▪ Smart pillow
▪ Power Management ICs for OMAP35xx
▪ Counted the number of bubbles in a glass of beer
News feed of science and technology, new electronics
Interesting materials of the Free Technical Library:
▪ section of the site Winged words, phraseological units. Selection of articles
▪ article Improving the stability of ship models. Tips for a modeller
▪ article With which two doctors, besides Dr. Watson, is the character of Sherlock Holmes closely related? Detailed answer
▪ article Physician of ultrasound diagnostics. Job description
▪ article Marseille soap. Simple recipes and tips
▪ Plants release oxygen when they breathe. Chemical experience
Leave your comment on this article:
All languages of this page
Home page | Library | Articles | Website map | Site Reviews
www.diagram.com.ua
2000-2024
Arabic
Bengali
Chinese
English
French
German
Hebrew
Hindi
Italian
Japanese
Korean
Malay
Polish
Portuguese
Spanish
Turkish
Ukrainian
Vietnamese