LEDs. Schemes, articles of the Free Technical Library

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LEDs. Schemes, articles, descriptions

Free library / Schemes of radio-electronic and electrical devices

LEDs

We recommend reading in our Free Technical Library:

Advanced ignition unit

Section Car. Ignition. This design can be recommended to trained radio amateurs who already have experience in manufacturing simple ignition blocks and who want to have a device from which, figuratively speaking, everything that seems possible today is squeezed out. Over the past years, the stabilized ignition unit [1] was repeated by many car and radio amateurs, and despite the shortcomings identified, we can assume that it has withstood the test of time. It is also significant that no publications of structures similar in simplicity with similar parameters have yet appeared in the literature. These circumstances prompted the author to make another attempt to fundamentally improve the performance of the block, while maintaining its simplicity. ... >>

Miniature electronic ballast on the IR51HD420 chip

Section Ballasts for fluorescent lamps. Another version of the miniature electronic ballast, made on the IR51HD420 hybrid chip, is shown in Fig. 3.24. The circuit is built on a half-bridge principle. The circuit has additional features: setting the warm-up time for the lamp's incandescent electrodes, the presence of a protective mode of operation of the electronic ballast in case of burnout of the incandescent electrodes and the absence of a lamp ... >>

Another life of the LPT port. Part 1

Section Electronics and computer. The parallel port for communicating with a printer (or other device) has a base address of &H378 (LPT1), &H278 (LPT2), &H3BC (LPT3). In this article, we will consider only LPT1. The address space of this port occupies the range &H378-&H37F ... >>

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Articles on LEDs

Articles on LEDs; LED descriptions: 91 articles

All articles for an electrician

Regulatory documentation for an electrician

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. ... >>

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Amphibious bus 11.09.2010

On the streets of Glasgow (Great Britain) a bus is being tested that can float on the river. With 55 passengers on board, it develops a speed of up to 95 km/h on land, and up to 15 km/h on water with the help of two jet propulsion.

If the trials are successful, the Dutch-made bus could replace the ferry linking two parts of the city separated by the Clyde River.

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