Halogen lamps. Schemes, articles of the Free Technical Library

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Halogen lamps. Schemes, articles, descriptions

Free library / Schemes of radio-electronic and electrical devices

Halogen lamps

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Car enthusiast control

Section Car. Electronic devices. The proposed device is designed for operational monitoring of the state of the vehicle batteries. It can be installed directly on the dashboard of a car or made in the form of a portable device (probe). Figure 1 shows the electrical circuit of the Control. On the elements VT1, R2, R8, R9, HL1, a cascade for indicating the lower voltage level is made. When the HL2 LED is off, the current flows into the VT1 base through the R3-R4-R9 circuit. Transistor VT1 opens and LED HL1 lights up. With an increase in the input voltage, the voltage at the base of VT2, supplied from R1, increases, which leads to the opening of VT2 and the fire of HL2. This closes VT1, and HL1 goes out. R3 is designed to sharpen the switching threshold of VT1 and VT2. The VD1-R1 circuit is a threshold circuit ... >>

SSTV Test Signal Generator

Section Measuring technology. Everyone who at least once had to deal with analog-to-digital technology knows how difficult it is to set it up without the appropriate instruments (oscilloscope, square-wave generator, frequency meter). SSTV equipment nodes need this setup. Vilnius radio amateur Alexander Vlasenko (UP3BD) developed a generator of test SSTV signals (similar ones are described in [1], [2], [3]). It is similar to those used in the service of household television receivers. The generator reproduces test signals of a special form in SSTV standards - this is a white grid, black grid, checkerboard, vertical and horizontal stripes, black and white fields, gray wedge (gradation from black to white). The generator is implemented on the basis of TTL series integrated circuits, two diodes and five transistors ... >>

Security systems

Electrical section. It has always been common for a person to protect himself, his home and his loved ones, his property from possible danger. To do this, he used all available methods and methods. At first, these were the simplest means of physical protection, over time they were transformed into burglar alarms, and now modern multifunctional security systems work for a person and effectively cope with their security tasks. When buying an apartment or a house, opening a store, organizing his own company, a person is faced with the problem of organizing security. He is faced with the task of ensuring the proper level of protection of his values. In solving this problem, everyone turns, first of all, to his own life experience. Based on it, taking into account their field of activity and business contacts, subjective and objective assessments of the likelihood of a threat are given. ... >>

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Articles on halogen lamps

Articles on halogen lamps; descriptions of halogen lamps: 21 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. ... >>

Random news from the Archive

BenQ GV31 Projector 13.01.2024

BenQ has launched the new BenQ GV31 projector, featuring a stunning 100-inch diagonal image and stunning 1080p resolution.

The new BenQ GV31 projector delivers unparalleled visual and audio immersion, turning any space into a true cinema experience. Modern technologies make it an ideal choice for lovers of quality entertainment.

The BenQ GV31 projector delivers crystal-clear images with 1080p resolution (1920 x 1080 pixels) and 300 ANSI lumens of brightness.

The device is equipped with USB 2.0, two HDMI 1.4 and a USB-C port for extensive connectivity. The projector offers a comfortable 135-degree tilt angle, allowing you to place it on the floor, wall or table. The built-in 2.1-channel audio system with two 4-watt mid-range speakers and an 8-watt subwoofer guarantees an amazing audio experience. In addition, the new product can be used as a Bluetooth speaker.

This projector, which opens up a world of large and clear images, is priced at $1000.

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