LED lighting application program
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Author:smartwatt
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Release time:2017-07-23
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The LED requires a completely different type of drive with an incandescent or halogen light. Incandescent lamps exhibit a purely resistive load with self stability, and the LED requires a current source. The luminous flux produced by LED is approximately proportional to the current flowing through the device.
LED characteristics
The LED requires a completely different type of drive with an incandescent or halogen light. Incandescent lamps exhibit a purely resistive load with self stability, and the LED requires a current source. The luminous flux produced by LED is approximately proportional to the current flowing through the device. The forward voltage of LED increases with the increase of current, but decreases with the increase of temperature. In this respect, the LED behaves like a diode. However, during operation, the forward voltage (VF) of the LED is very large. The voltage is related to the energy (eV) when electrons are converted into photons, and the energy is directly related to the color of light. In addition, the VF values between the different production batches can vary greatly.
Serial / parallel configuration
In most applications that replace existing light sources with LED, you need to connect multiple LED to the drive, because a single LED does not produce enough luminous flux. LED can use serial or parallel connections.
If the LED uses a serial connection, the total voltage on the LED chain is equal to the sum of the forward voltage (the current on all LED is equal).
If the LED is connected in parallel, the current will be allocated to each branch. However, since the forward voltage of a LED will decrease as the temperature rises, the configuration is inherently unstable. As temperatures rise, more and more currents flow to the branch with a lower forward voltage, and these branches will become brighter, and the branches with higher forward voltages will become darker.
However, the parallel configuration (or series parallel connection) one of the reasons is that it allows a large number of LED to a safe supply voltage together, and if you want to use a serial connection to achieve the same brightness, you may need a voltage unacceptably high.
In the current environment of fierce competition in the solar industry, PV component manufacturers are striving to make their products different, and the main direction is to achieve the highest component efficiency with the lowest cost. There are a number of technical concepts and marketing programs that claim to have mature products, but most products cannot stand close scrutiny. There are too many examples to show that some of the technological advantages achieved in some way do not necessarily translate into the final gains of a component. For example, although the cell cost is reduced, but the final assembly cost has not decreased; again, the efficiency of the cells may be increased, but the final assembly efficiency and did not get the same degree of improvement.
Demand
1. exclusive stores, shopping malls and other indoor commercial atmosphere lighting
LED light source, energy saving and environmental protection, no ultraviolet radiation, to meet some businesses to display personalized psychological light environment, become some businesses for some special products to show the preference of full spectrum light source; its color range is very suitable for foil stores and shopping malls in the local atmosphere, LED light source lighting, focus lighting lighting and regional advantages to create a high-quality light environment of other traditional lighting electric light source can not match, very suitable for commercial lighting domain. At this point the price is a secondary consideration.
2.entertainment, beauty salons lighting
Light source LED integration have the characteristics of easy control, lighting effects can create static and dynamic, to any color from full spectrum white light, rendering a strong entertainment atmosphere, the appearance of LED opens a new train of thought to the interior design of this kind of space environment.
3. bars, coffee shops and other places of leisure atmosphere lighting
LED light source has the advantages of small volume, solid-state lighting, lighting manufacturers give unlimited space to play, can be professional production of all kinds of different styles of LED lighting, LED and arbitrary color full spectrum and dynamic lighting effects make it static decorative and create atmosphere function in this kind of place behaved most incisive.
4.museums, art galleries and other professional places lighting
Museums, art galleries and other places belong to a special occasion where the lighting environment is high. The special features of the display items require that the lighting source does not contain ultraviolet light, and there is no heat radiation. LED is a cold light source. The light does not contain ultraviolet light. It can meet the special requirements of the museum and the art gallery for lighting.
5. stage lighting of commercial theatres, television studios, dance and photography
The application of LED light source in indoor lighting has given a new concept to the lighting environment of theatres and studios. As a premier British television station, GMTV changed the studio's lighting to color LED, reducing the energy use of lighting by more than 60%, and lowering the temperature of the studio to a more comfortable level.
6. hotels, hotels, hotels, lighting, hotels, hotels lighting
The use of LED products, to bring customers a different feeling, in addition to saving energy, but also luxurious and warm, to the owners, the light environment LED to create personalized can fully demonstrate the strength of enterprises.
7.conference room, multi-function hall lighting
Gray scale LED intelligent control can be adjusted according to different lighting environment adjustment meeting room or content of the multifunctional hall, serious or lively can freely set, LED intelligent lighting can meet the different needs of the light environment the theme of the meeting.
8.exhibition, fashion show lighting
An exhibition or a fashion show is a place for businesses to display their products and services. For businesses, in order to attract more customers, sell goods and reach a cooperation agreement, they need to show the light environment of personalized products and services, LED in the exhibition and fashion show lighting handy.
Development
LED lighting market development is more and more hot, from the current market view, not long after, LED lighting industry will usher in the rapid development of the industry. Abroad, the first promotion of the field is also in 2, 3, two, but LED street lights, even foreigners are very cautious. Therefore, the boss who is a blind LED street lamp is likely to become a "pioneer of revolution", while the other two markets will cultivate "leading forces" in many industries.
At present, the heat is LED lights, the Ministry of science and technology in promoting the ten city lights, with amazing enthusiasm in advance, a lot of people prying into the market, look up the first lighting field. There are 21 national pilot city, is expected to 1 million, the 50 city approved plan of the Ministry of science and technology, is expected to 2 million, this is Chinese characteristics! Is to create Chinese speed! But the overall product maturity is worrying; may also be the lighting field was the first to do a market rotten, repeat the early LED guardrail lamp too, whether the bubble has been more serious, although very prosperous, very lively, it can be predicted by the government money, after the final 2-3 will develop a batch of LED photoelectric technology good company, this is perhaps the ultimate purpose of government.
LEDT8 pipe applications, from the market product program, has been close to commercialization of products launched, is the first to mature and promote a market. Can do parking, shopping malls, advertising, backlight and other markets; and product costs and prices have been basically close to commercial application point of proximity (150). Good products, both in optics, heat dissipation, and power processing, have a more mature program. The product is also close to commercialization. Of course, there are still a lot of low quality products in the market. That's the biggest challenge right now. With the introduction of the energy star and the relevant EU standards, we believe that the above problems will be greatly improved, that is to say, the commercial promotion of T8-LED will begin.
LED cup, cup to be concerned, is one of the LED lighting field first, has been the main product scheme is not mature enough, so it is difficult for large-scale applications. From the previous die casting to aluminum extrusion profiles, but the real heat and power supply products have not yet seen, that is, there is no commercial application of product solutions. Although the cost of LED itself has declined substantially, the market has been no improvement. Some foreign reports have launched some Toshiba cup can be a good solution to thermal and power products, if so, the market should be followed. T8-LED later, get up soon. LED is also one of the first promising areas.
On the current development of the industry standard, LED lighting has not enough ability to break the traditional concept of lighting, still remain in the substitution line; and to replace the line inside, LED lighting must also rely on government policy guidance. That is to say, although certain LED lighting has been developed to a mature level, it is still at the embryonic stage of an initial stage relative to the whole market.
With the LED lighting industry competition intensified, large LED lighting enterprises merging and capital operation has become increasingly frequent, the domestic LED lighting enterprises outstanding pay more and more attention to research on the industrial market, especially the research on enterprise development environment and customer demand trends. Because of this, a large number of domestic outstanding LED lighting brands have risen rapidly, and gradually become the leader of LED lighting industry!
The LED requires a completely different type of drive with an incandescent or halogen light. Incandescent lamps exhibit a purely resistive load with self stability, and the LED requires a current source. The luminous flux produced by LED is approximately proportional to the current flowing through the device. The forward voltage of LED increases with the increase of current, but decreases with the increase of temperature. In this respect, the LED behaves like a diode. However, during operation, the forward voltage (VF) of the LED is very large. The voltage is related to the energy (eV) when electrons are converted into photons, and the energy is directly related to the color of light. In addition, the VF values between the different production batches can vary greatly.
Serial / parallel configuration
In most applications that replace existing light sources with LED, you need to connect multiple LED to the drive, because a single LED does not produce enough luminous flux. LED can use serial or parallel connections.
If the LED uses a serial connection, the total voltage on the LED chain is equal to the sum of the forward voltage (the current on all LED is equal).
If the LED is connected in parallel, the current will be allocated to each branch. However, since the forward voltage of a LED will decrease as the temperature rises, the configuration is inherently unstable. As temperatures rise, more and more currents flow to the branch with a lower forward voltage, and these branches will become brighter, and the branches with higher forward voltages will become darker.
However, the parallel configuration (or series parallel connection) one of the reasons is that it allows a large number of LED to a safe supply voltage together, and if you want to use a serial connection to achieve the same brightness, you may need a voltage unacceptably high.
In the current environment of fierce competition in the solar industry, PV component manufacturers are striving to make their products different, and the main direction is to achieve the highest component efficiency with the lowest cost. There are a number of technical concepts and marketing programs that claim to have mature products, but most products cannot stand close scrutiny. There are too many examples to show that some of the technological advantages achieved in some way do not necessarily translate into the final gains of a component. For example, although the cell cost is reduced, but the final assembly cost has not decreased; again, the efficiency of the cells may be increased, but the final assembly efficiency and did not get the same degree of improvement.
Demand
1. exclusive stores, shopping malls and other indoor commercial atmosphere lighting
LED light source, energy saving and environmental protection, no ultraviolet radiation, to meet some businesses to display personalized psychological light environment, become some businesses for some special products to show the preference of full spectrum light source; its color range is very suitable for foil stores and shopping malls in the local atmosphere, LED light source lighting, focus lighting lighting and regional advantages to create a high-quality light environment of other traditional lighting electric light source can not match, very suitable for commercial lighting domain. At this point the price is a secondary consideration.
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 |
2.entertainment, beauty salons lighting
Light source LED integration have the characteristics of easy control, lighting effects can create static and dynamic, to any color from full spectrum white light, rendering a strong entertainment atmosphere, the appearance of LED opens a new train of thought to the interior design of this kind of space environment.
3. bars, coffee shops and other places of leisure atmosphere lighting
LED light source has the advantages of small volume, solid-state lighting, lighting manufacturers give unlimited space to play, can be professional production of all kinds of different styles of LED lighting, LED and arbitrary color full spectrum and dynamic lighting effects make it static decorative and create atmosphere function in this kind of place behaved most incisive.
4.museums, art galleries and other professional places lighting
Museums, art galleries and other places belong to a special occasion where the lighting environment is high. The special features of the display items require that the lighting source does not contain ultraviolet light, and there is no heat radiation. LED is a cold light source. The light does not contain ultraviolet light. It can meet the special requirements of the museum and the art gallery for lighting.
5. stage lighting of commercial theatres, television studios, dance and photography
The application of LED light source in indoor lighting has given a new concept to the lighting environment of theatres and studios. As a premier British television station, GMTV changed the studio's lighting to color LED, reducing the energy use of lighting by more than 60%, and lowering the temperature of the studio to a more comfortable level.
6. hotels, hotels, hotels, lighting, hotels, hotels lighting
The use of LED products, to bring customers a different feeling, in addition to saving energy, but also luxurious and warm, to the owners, the light environment LED to create personalized can fully demonstrate the strength of enterprises.
7.conference room, multi-function hall lighting
Gray scale LED intelligent control can be adjusted according to different lighting environment adjustment meeting room or content of the multifunctional hall, serious or lively can freely set, LED intelligent lighting can meet the different needs of the light environment the theme of the meeting.
8.exhibition, fashion show lighting
An exhibition or a fashion show is a place for businesses to display their products and services. For businesses, in order to attract more customers, sell goods and reach a cooperation agreement, they need to show the light environment of personalized products and services, LED in the exhibition and fashion show lighting handy.
Development
LED lighting market development is more and more hot, from the current market view, not long after, LED lighting industry will usher in the rapid development of the industry. Abroad, the first promotion of the field is also in 2, 3, two, but LED street lights, even foreigners are very cautious. Therefore, the boss who is a blind LED street lamp is likely to become a "pioneer of revolution", while the other two markets will cultivate "leading forces" in many industries.
At present, the heat is LED lights, the Ministry of science and technology in promoting the ten city lights, with amazing enthusiasm in advance, a lot of people prying into the market, look up the first lighting field. There are 21 national pilot city, is expected to 1 million, the 50 city approved plan of the Ministry of science and technology, is expected to 2 million, this is Chinese characteristics! Is to create Chinese speed! But the overall product maturity is worrying; may also be the lighting field was the first to do a market rotten, repeat the early LED guardrail lamp too, whether the bubble has been more serious, although very prosperous, very lively, it can be predicted by the government money, after the final 2-3 will develop a batch of LED photoelectric technology good company, this is perhaps the ultimate purpose of government.
LEDT8 pipe applications, from the market product program, has been close to commercialization of products launched, is the first to mature and promote a market. Can do parking, shopping malls, advertising, backlight and other markets; and product costs and prices have been basically close to commercial application point of proximity (150). Good products, both in optics, heat dissipation, and power processing, have a more mature program. The product is also close to commercialization. Of course, there are still a lot of low quality products in the market. That's the biggest challenge right now. With the introduction of the energy star and the relevant EU standards, we believe that the above problems will be greatly improved, that is to say, the commercial promotion of T8-LED will begin.
LED cup, cup to be concerned, is one of the LED lighting field first, has been the main product scheme is not mature enough, so it is difficult for large-scale applications. From the previous die casting to aluminum extrusion profiles, but the real heat and power supply products have not yet seen, that is, there is no commercial application of product solutions. Although the cost of LED itself has declined substantially, the market has been no improvement. Some foreign reports have launched some Toshiba cup can be a good solution to thermal and power products, if so, the market should be followed. T8-LED later, get up soon. LED is also one of the first promising areas.
On the current development of the industry standard, LED lighting has not enough ability to break the traditional concept of lighting, still remain in the substitution line; and to replace the line inside, LED lighting must also rely on government policy guidance. That is to say, although certain LED lighting has been developed to a mature level, it is still at the embryonic stage of an initial stage relative to the whole market.
With the LED lighting industry competition intensified, large LED lighting enterprises merging and capital operation has become increasingly frequent, the domestic LED lighting enterprises outstanding pay more and more attention to research on the industrial market, especially the research on enterprise development environment and customer demand trends. Because of this, a large number of domestic outstanding LED lighting brands have risen rapidly, and gradually become the leader of LED lighting industry!
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