12/220 volt converter on CD4047 chip. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Voltage converters, rectifiers, inverters
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Author: Dima Rubtsov, quest0_0@mail.ru; Publication: cxem.net
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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 Autonomous powered marine robot drone
22.04.2013
Liquid Robotics has unveiled a new version of the WaveGlider robotic unmanned boat. Now the robot has received a virtually unlimited range thanks to solar panels and a generator that draws energy from the waves of the sea.
The WaveGlider robot is quite well known: since 2009, it has already covered a total of 555,6 thousand km. So, in November 2011, the robot left the port in San Francisco and in January 2013 crossed the Pacific Ocean, covering 17,4 thousand km. The high performance of the WaveGlider, in particular its unprecedented cruising range, has already attracted the attention of the US Navy, which is considering using these robots to patrol the ocean expanses.
The new version of the robot, called the Glider SV3, is 4m long, weighs 122kg and can carry up to 45kg of payload. The main mover is a special underwater structure, similar to a torpedo with six pairs of wings. Thanks to the rolling on the waves, the rotating wings of the underwater part of the Glider SV3 continuously pull the boat forward, which ensures movement at low speed. Power is provided by solar panels with a peak power of 170 watts. The panels charge a 980 Wh lithium-ion battery. Navigation is provided by GPS, and management by special software running on a Linux operating system in combination with Java. This software allows you to control the robot from a smartphone or tablet.
The power system has enough power to power a satellite communications system and a variety of sensors, including acoustic sensors for detecting submarines. At the same time, due to its small size, lack of heat sources and noiselessness, the Glider SV3 itself is quite difficult to detect.
According to the developers, with rare regular maintenance, the Glider SV3 can be in the open ocean for years.
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