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Ballasts for fluorescent lamps. Schemes, articles, descriptions

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Symmetrical dinistors - in power supplies



Section Power supplies. The main purpose of symmetrical dinistors is to work in triac power controllers. It is interesting to use such a regulator according to a typical scheme for connecting a network adapter designed for a rated voltage of 120V to a 220V network (Fig. 1). When using a triac of the type indicated in the diagram and a metal-film capacitor K73-17 for a rated voltage of 63 V, all elements of the regulator can be installed in the housing of the A1 adapter being finalized. To configure the device, connect the required load and a voltmeter to the adapter output, put a variable 1 kΩ and a constant 220 kΩ instead of the resistor R51, connected in series ... >>

Multi-command remote control device on a microcontroller for pyrotechnic shows



Section Microcontrollers. The proposed multi-command remote control device was developed for pyrotechnic shows using electric igniters. Possessing undeniable advantages over bulky wired remote controls, it is, however, not inferior to them in terms of reliability, thanks to the use of modern element base and digital signal coding. Obviously, the scope of such devices is very wide. ... >>

Power supply project



Electrical section. The use of electricity is possible only after the approval of electrical installations for operation and the receipt by the consumer of a subscription book for payments for electricity. First of all, the consumer must obtain technical conditions for power supply from the owner of electrical networks, draw up a project or power supply scheme, coordinate this document with the owner of the networks and the local authority of the State Energy Supervision Authority. After the completion of the installation work and the fulfillment of the technical conditions, the consumer submits an application for the supply of electricity. The owner of the networks checks the work done for compliance with the project and the PUE, conducts briefings on electrical safety measures. Records are made of the results of the inspection and briefing. After that, the enterprise that issued the technical specifications connects the facility to the power grid ... >>

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Articles on ballasts for fluorescent lamps

Articles on ballasts for fluorescent lamps; descriptions of ballasts for fluorescent lamps: 42 articles

• Variants of electronic ballast implemented according to the scheme of a single-cycle self-oscillating converter
• An interesting scheme of electronic ballast on discrete elements for a compact fluorescent lamp
• How to light a fluorescent lamp
• Ballast control chips
• Miniature electronic ballasts based on the IR53HD420 chip
• Miniature electronic ballast on the IR51HD420 chip
• Miniature electronic ballast based on the IR51HD420 chip with one-stage frequency heating of the electrodes and a conventional power supply circuit
• Single-cycle converters of electronic ballasts
• Features of the repair of compact fluorescent lamps and electronic ballasts
• Domestic electronic ballasts
• Electronic ballast converter using "self-protected" switching transistor
• The principle of operation of the electronic starter on the EFS STARLIGHT KIT chip
• The principle of operation of the electronic starter on the UBA2000T chip
• Programs for the design of electronic ballasts
• Design of electronic ballasts for fluorescent lamps
• Simple electronic ballast on the IR2153 chip
• Modern electronic ballast on the IR2520 chip
• Structural diagram of electronic ballast
• Scheme of a lamp with an electromagnetic ballast
• Technical parameters of bipolar power transistors used in electronic ballasts on discrete elements
• What is ballast?
• Electronic ballasts on discrete elements, designed to work with high-power fluorescent lamps
• Electronic ballasts on discrete elements. Advantages. Terminology issues
• Electronic ballasts for 11 W compact fluorescent lamps
• Electronic ballasts based on the UBA202 chip
• Electronic ballasts based on the UBA2021 chip for powering compact fluorescent lamps
• Electronic ballasts on elements from the company PHILIPS. Overview of manufactured chips for fluorescent lamps
• Electronic ballasts powered by low-voltage sources. Classification
• Electronic ballasts. Main directions of development
• Electronic ballasts. Advantages
• Electronic ballasts. Electrical parameters
• Electronic starters. Advantages
• Electronic starters. Varieties
• Electronic ballast in a luminaire with two 6 W fluorescent lamps
• Electronic ballast for fluorescent lamps LBU 30 with a power of 30 W
• Electronic ballast based on discrete elements of a 20-watt OSRAM compact fluorescent lamp
• Electronic ballast based on Luxor discrete elements made in China
• Discrete electronic ballast without autostart circuit for the lowest power compact fluorescent lamps
• Electronic ballast on discrete elements from VITO
• Electronic ballast on discrete elements, built on the principle of a self-excited half-bridge inverter
• Electronic ballast with modified cathode heating circuit
• Electronic ballast based on the KR1211EU1 microcircuit powered by the car's on-board network (11-15 V)
• Electronic ballast powered by a low-voltage source on the KR1211EU1 microcircuit
• Electronic ballast that allows you to adjust the brightness of the lamp

All articles for an electrician

• Alternative energy sources
• Household Appliances
• Halogen lamps
• Grounding and grounding
• electrician's tool
• Fluorescent lamps
• Lightning protection
• Lighting. Control schemes
• Ballasts for fluorescent lamps
• welding equipment
• LEDs
• Electrician's Handbook
• Residual current devices (RCDs)
• Electric meters
• Electricity for beginners
• Electrical safety, fire safety
• Electric motors
• Electric installation work
• Electric power supply
• Electrical materials

Regulatory documentation for an electrician

• Rules for the technical operation of consumer electrical installations (PTE)
• Rules for the installation of electrical installations (PUE)

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 NXP Unveils Ultra-Compact, High-Precision MEMS Frequency Synthesizer 15.01.2012 NXP Semiconductors unveiled an ultra-compact, high-precision MEMS clock synthesizer at CES 2012 that the manufacturer claims will be an excellent alternative to crystal clocks. Instead of a quartz resonator, it uses a silicon crystal, which makes the novelty 20 (and even more) times more compact than the smallest resonators to date. A MEMS crystal, unlike a quartz crystal, does not require special ceramic or metal cases for sealing. It can be housed with other ICs in an inexpensive standard plastic case. The crystal-free frequency synthesizer is just one example of a range of advanced high-performance mixed digital-analog component technologies that NXP is showcasing at CES 2012. NXP's MEMS resonator technology provides higher frequency stability, lower jitter, and much less clock temperature drift than other CMOS oscillators. The company's industrial prototype is a highly stable frequency reference that is ideal for Gigabit Ethernet, USB, PCI Express, and SATA communications equipment, as well as CPU and memory synchronization, and control circuits in consumer electronics devices.

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