Explain the working principle of energy-saving lighting power supply

In recent years, city lighting has become the mainstream of the bright lights at night the power, has become most of the city that never sleeps, these to people's life, work and entertainment production, bring huge economic benefits and convenience and enjoyment. However, many units lighting there are still many problems to be solved: large power loss caused by high electricity; replacement lamps frequently make units have to pay more fees and ancillary equipment lamps; lamps.

Lighting has become an important measures of human life, work, production, entertainment etc. all social activities, along with the rapid development of society and technology, people demand for lighting is not limited to using it to see the object, has risen to the requirements of environmental protection, bright and soft and give people the visual beauty of the height.

With the expansion of industrial production scale, it is necessary to increase the lighting capacity. In recent years, city lighting has become the mainstream of the bright lights at night the power, has become most of the city that never sleeps, these to people's life, work and entertainment production, bring huge economic benefits and convenience and enjoyment.

However, many units lighting there are still many problems to be solved: large power loss caused by high electricity; replacement lamps frequently make units have to pay more fees lamps and auxiliary equipment; increase the repair and maintenance of lamps caused by human resources; strong light pollution light generated in large area; lighting lamps produce heat radiation and so on.

In order to solve these negative effects, the national energy office put forward the lighting project must meet the requirements of green, energy saving, environmental protection. To solve the above problems, the electricity supplier has taken some measures to improve and alleviate these contradictions.

3 working principle of energy saving lighting power supply

One of the main ways of lighting energy saving lighting energy efficiency is the use of energy-efficient light source, which is the use of luminous efficiency of the bulb or lamp; two is in the existing lighting system with energy-saving control equipment. From the practical point of view, the first scheme is suitable for the new design of the lighting circuit. For the existing lighting system, because of the need to replace all the lamps, the initial investment of funds and manpower is relatively large, in the lighting places not in batches to update the lamp, this one-time investment is too large, so many units from. High efficiency energy-saving light source (lamp bulb) is a traditional light source price 5 ~ 10 times, if the energy-saving lamps procurement itself quality problems or power supply quality is not good, energy-saving lamp life is very short, this may result in the use of units "energy-saving does not save money" is not a normal phenomenon. It is more economical and practical to use energy-saving equipment to improve the energy efficiency of the existing lighting system.

At present, the domestic sales of energy-efficient lighting equipment, lighting control device, which accounted for the largest proportion. According to the principle of work can be divided into three categories: (1) thyristor chopper type energy-saving lighting device adopts thyristor chopper principle, by controlling the thyristor (SCR) conduction angle, the sine wave voltage input part cut off, thereby reducing the output voltage value to control the purpose of power saving pressure.