LED equipment spending will decline by 18% in 2012

Posted on May 18, 2012 by admin

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International Semiconductor Equipment and Materials International (SEMI) has issued a research report pointed out that the global LED Lightmanufacturing equipment spending in 2011 surged 36 percent, we expect 2012 will be down 18%. The agency also said that in 2012 the global LED per month will be up to two million wafers (4 inch wafer), an increase of 27% compared to 2011.
According to the report, the global metal organic chemical vapor deposition (MOCVD / LED crystal growth equipment) market after several years of rapid expansion, expected 2012 sales will be greatly reduced by 40%, thereby allowing the overall LED equipment spending in the first decline in five years. In addition, non-MOCVD equipment expenditures (particularly lithography, etching, testing and packaging equipment) will rise in 2012, the main reason manufacturers have begun to enhance the effectiveness of the production line and improve product design.

2011 high-brightness LEDs (HB-LEDs) demand continued to rise in the solid state lighting market, but HB-LEDs used in LCD TV backlight (accounting for 40% of the overall application market) growth is as expected. According to industry estimates, the 2020 global LED used in solid-state lighting sales from the current $ 2.5 billion increase to over 30 billion U.S. dollars.

According to forecasts, in 2012 in mainland China LED equipment spending will reach $ 719 million, ranking the highest in all regions; in Taiwan ($ 321 million), Japan (3.00 billion U.S. dollars), and South Korea ($ 260 million). 2012 Taiwan s LED production capacity accounted for 25% of the world, ahead of the pack, followed by the mainland (22%). In the new plant, according to SEMI record, the 2012 global total of new 29 LED plant, expected in 2012 will be 16 new plant succession on the line.

SEMI also pointed out that the 2011 LED leadframe shipments growth rate is estimated at 10 percent, well below the 69 percent growth rate in 2010. Outlook 2012, the expected LED leadframe shipments will be close to 83 billion. According to the SEMI estimates that in 2008, 2009, 2010, 2011 and 2012 LED leadframe shipments should be 35,700,000,000 39,500,000,000 66,900,000,000 73,600,000,000 82,700,000,000.

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Seize new opportunities to realize the rapid development of

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In recent years, the LED market showing the outbreak of momentum, Cree technological breakthroughs, 10000 10 City, the Shanghai World Expo one billion LED and Guangzhou Asian Games light engineering, as well as Samsung, Panasonic and other predators have entered the LED lighting industry, the industry hot constantly . 2012, LED lamps will be sustained and rapid development momentum, card Electronic Co., Ltd., Shenzhen City, to seize this unprecedented opportunity for development, and actively cater to the trend of market dynamics, continuous innovation and strive to be a slice in the LED Light market competition, the tide of .
          6-8 April 2012, the card through the good out Photoelectric Co., Ltd. of Shenzhen City will carry the company s flagship product, the appearance of the most effectiveness in construction works procurement platform – Second China (Qingdao) International green lighting products and technology exhibition designed with the visibility and influence of the Qingdao Exhibition in the same industry, positive north to fully develop the northern market, and create a unique production and marketing chain of integrated business, the new development by leaps and bounds.
          Card through the good out Photoelectric Co., Ltd. is a wholly owned subsidiary of Shenzhen Zhengtong Electronics Co., Ltd. (stock code 002 197), is committed to being a professional LED manufacturers and lighting solutions provider EMC model operational services supplier. The company has a number of highly qualified engineers and technicians, R & D personnel, and optical and Asia s leading research institutions (Hong Kong Polytechnic University) to carry out the depth of cooperation, joint development of LED lighting optical system. LED lights, LED interior lighting, solar and wind and solar LED lighting systems and other products through rigorous testing and practical application are in the forefront of the industry in a number of important indicators of the illumination uniformity and light efficiency.
         Developed by application of LED lighting products, the technology is mature, reliable performance, significant energy saving effect, pleasing in appearance, by the national authoritative testing organizations qualified and verified by a large number of practical projects to reach the requirements of the relevant state lighting design, has been widely applied to all levels of roads, office buildings, parking lots, courtyards, living areas, parks, squares and other indoor and outdoor lighting situations.
         The trip to Qingdao, Shenzhen City card through the good out Photoelectric Co., Ltd. Qingdao show new customers, based on the accelerated occupation of both the South of Market, actively expand the northern market, rising corporate profits, accelerate the pace of enterprise development at the same time to create enterprise s unique brand value, to lay a good foundation for cooperation for the successful implementation of the new situation of mutual benefit and win-win. Qingdao International Green Lighting Fair is always uphold the efforts for exhibitors to maximize the benefits, "the purpose to strengthen the buyer buyers treaty invitation" as the core organizational means to create "real estate construction in progress precise matchmaking supporting the effectiveness of the activity system, the effectiveness of go all out to build a high specification, high-quality show!
 

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For LED industry to advance the field of indoor commercial lighting

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LED industry development is a gradual process, not the outbreak of a point in time. At present, the LED lighting market \"two changes\": First, outdoor lighting turned to indoor lighting, traditional lighting to LED lighting. For the Chinese market, LED lighting products not yet in common household applications, mainly in the commercial sphere. In addition, our eyes but also to invest in segments such as automotive lighting, agricultural, greenhouse lighting, medical lighting.
In recent years, from central to local levels, the development of LED alive. The \"hot\" pros and cons, so many people are concerned about the LED lighting industry is not a bad thing, but a good thing. However, as practitioners of the LED industry, the mind should calmly consider the issue should be rational, to reduce blindness, increase scientific and reasonable. LED industry development is a gradual process, not the outbreak of a point in time. As LED technology advances, the size of the market is expanding, the applications continue to broaden, and has been extended to the field of automotive, agricultural, medical and other industry segments. At present, the development of the market characteristics of LED lighting \"two changes\": First, the outdoor lighting turned to indoor lighting, traditional lighting to LED lighting.

Give priority to the development of indoor lighting

In the field of LED lighting applications, LED outdoor lighting such as LED street lights to promote them more difficult, because its power is larger, and outdoor work environment is relatively poor, are actually not suitable for large-scale promotion. Small power of indoor products, the environment is not as bad as, like outdoor temperature will not change much, LED lighting early applications should focus on indoor lighting.

There are a variety of LED indoor lighting products, most notably the bulb lights, reflective lights, downlights, fluorescent tube lights, plate lights. Japanese market to the bulb-type light-based, while U.S. and European markets on reflective light. In addition, LED light sense very strong, so the focus of the downlight is also the current application. These three types of LED lights are to be encouraged, and are suitable for the domestic market and the application environment.

Fluorescent tubes, LED lights, there is unlikely to encourage the development because of security problems. To plate lamps, the lamps must be replaced, the cost will be relatively high, but flat-panel lights may be one of the future direction of the application.

Commercial lighting into the main battlefield

For the development of LED lighting, LED lighting market growth rate has not lived up to expectations, which means that people expect too much of the LED industry, the global market and Chinese markets. The scale of the global lighting market is only about $ 120 billion (equivalent to about RMB 756 billion yuan), China\\ s 2010 market size to reach 300 billion yuan, far below expectations. 2011, both domestic and overseas markets and the industry chain, the middle and lower reaches have not reached the projected increase.

For the Chinese market, LED lighting products not yet in common household applications, mainly in the commercial sphere, such as industrial, hotel, shopping malls and other areas. For shopping malls, mainly used in the public part of the mall demanding of lighting, a number of factors involved in color temperature, color rendering.

Do LED lighting products business into two categories, first, the traditional lighting companies, their understanding of the lighting is more in-depth and comprehensive, and better distribution channels; two LED industry chain enterprises, such as LED packaging companies turn to the downstream terminal manufacturers. These companies need to gradually become familiar with the lighting, and sales network.

In addition, our eyes but also to invest in the lighting field segments such as automotive lighting, agricultural greenhouse lighting, medical lighting (shadowless lamp, endoscope with lights), Lighting to do no matter what kind of industry should have a more comprehensive understanding of lighting, close to industrial applications, should not \"rush\" to the blind development.

Chinese LED lighting companies in order to develop downstream applications, get rid of the OEM such low profit situation, must pay attention to the research and development, emphasis on product quality. This quality not only refers to the luminous efficiency, reliability, stability, and color temperature, color rendering, the light fades and other indicators, these indicators should be standard in order to withstand the test of the market. In addition, staff is currently one of the bottlenecks bigger and stronger.
 

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The global LED lighting standard implemented in 2012 onwards

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With the LED after another import indoor and outdoor lighting market, LED lighting prices have also dropped significantly, but the quality is poor also lead to many problems, it was noted around one after another set of LED lighting specifications, a number of mandatory lighting standard from 2012 onwards the road is expected to accelerate the vicious competition eliminated inferior, thereby bringing about the LED Light market reshuffle effect.

LED lighting applications has become increasingly common and diverse, the Taiwan Ministry of Economic Affairs Bureau of Standards in recent years have worked a number of LED lighting standards, norm-setting pace of following LED street leading countries in the world announced the end of 2010, enacted three common LED interior light standard, including LEDT8 straight tube lamp, LED Spotlights light steel frame light (including flat-panel lights), the industry pointed out that the relevant standards has been set, but the LED street lamp After years of promotion, until 2012 is expected to expand the installation, as the Government import slowly add to budgeting operations, is estimated to be 2013 to 2014 is expected to release procurement tenders.

However, due to regional differences in climate and environment is too large, industry standards have not yet entered the national standards project despite the development of LED industry in full swing, by province respective dominant promote regional LED lighting standards established, but according to the Development and Reform Commission recently LED lighting technical specifications, indoor LED downlight is expected to grant financial program technical specifications finalized in 2012 under the impetus of the continent s second Five-Year Plan, the Central announced LED interior lighting is expected to expand the implementation of priority projects.

As for the LED lighting products enter the EU must be certified by CE, while taking into account the electromagnetic radiation on the human body may cause harm to the EU also announced in 2013, to enforce the standards of the human body electromagnetic radiation safety norms.

With the U.S. Environmental Protection Agency announced in October 2011, the new version of the solid-state lighting and light products listed on the specification, the industry pointed out that the recent concern of the LM-80 light decay test, expected to be enforced from April 2012 onwards, in the new specification on the road, the future North American market, lighting manufacturers will give priority to buy validated by the LM-80 LED products into the U.S. market in the future, for non-validation of the Taiwan LED packaging and grain plants, terrorism will be subjected to hinder.

Subject to the LM-80 light fades verify 6,000 hours of testing, time-consuming as long as six to eight months, part of the LED industry is of the view that the LED product specifications and technology with each passing day, after as long as several months, LED lighting verification standards may turn to change, therefore this certification still hold doubts, but the Taiwan Industrial Technology Research Institute, said that the LM-80 is considered the ticket to enter the U.S. market, manufacturers must report certificate issued by the LM-80 (LED lumen maintenance) trials in order to achieve the Energy Star label, North America Illuminating Engineering Society (IES) has also set out the LM-80 light attenuation testing standards, not only for the LED application products provide measurement standards, to provide consumers with quality assurance, will become common testing standards in the world.

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Larg scale application of LED lighting is the annual saving hundreds of billions of degrees

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Recently, the Ministry of Science and Technology Joint Housing and Urban Ministry of Construction, held in Guangzhou, a city of ten thousand, \"Semiconductor Lighting pilot on-site meetings. Housing and Urban Vice Minister of Construction Qiu Paul on behalf of the Ministry of Housing and Urban-Rural Development described the following three aspects: First, the promise and potential to promote LED lighting; the Ministry of Construction early to promote LED lighting practices; is the next step to speed up the LED promotion of basic plans.

To promote energy-saving potential of LED lighting huge performance in three areas

1.LED promote the use of urban lighting

Such as municipal roads and street lights only consider the 657 cities nationwide municipal lighting (not including the 2000 county and the small town of about 20,000) there are 17.74 million, a huge number of landscape lighting. As our country is in a period of rapid development of urbanization, the urban population each year a net increase of more than 10 million street lights each year will be increased by 120-150, 10000, and the process will continue for 25 or even 30 years. If the city\\ s new street lights all using LED, some of the old street lamps and landscape lighting to LED lighting, the potential and prospects for the development of which can be imagined.

(2) construction of residential promote LED lighting

As the construction industry in China country, two billion square meters of new buildings per year, equivalent to half of the world\\ s new buildings in China, must be at least 20 lights in each building unit; with the \"12th Five-Year\" period, the government money cover to protect 36 million housing units, which will have the potential applications of the 5-6 one hundred million LED lights. The construction area of ??over 200 million square meters have been built in the city, according to expert estimates, 30% with LED lighting, you can save more than 1000 billion kWh. Compared with other energy-saving projects and enormous potential for LED lamps, such as 50% of the national motor to high efficiency motors can be energy-saving 3.4 billion kWh of electricity, this is because the motor energy saving of 10% is quite a lot. LED to replace traditional incandescent energy savings of 50% or more.

(3) the vast rural market more potential applications

The most pressing is nearly more than 20 million farmers power shortage of electricity, if these farmers the use of solar and LED integration to replace the large power grid, the annual electricity savings will also have more than 500 million degrees. Such as the use of traditional grid extension to remote villages, not only 75% of electricity consumption on the line, and its maintenance costs are extremely high, with a total investment of over 50 billion yuan. Household solar photovoltaic and LED lighting integration facilities, and only 1600 yuan per household can solve the lighting problem, and very low maintenance costs. Coupled to accommodate the small towns, about 20,000 of the nearly half of the urban population in China to promote the huge capacity of the LED market. Thus, the LED to promote the application is undoubtedly one of the main battlefield of our energy reduction.

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The LED Several energ saving lamps and its market prospects

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Types of LED energy saving lamps

The first category: LED energy saving lamps, made by the straw hat, low-power led power RC step-down circuit. Straw hat LED continue to use the indicator LED package epoxy encapsulated, making the LED chip unable to shed heat, the light fades serious, a lot of white LED in use for some time, the color temperature becomes higher, and gradually into a bluish is getting dark. Manufacturers have committed to developing low-light decay straw hat LED, but did not change the package still did not change much, the light fades. These LED energy saving lighting products, is a transitional product, low prices and poor quality.

The second category (5050): made by 3528 or 5050 power LED LED energy-saving lamps, the power supply is also commonly used resistive and capacitive step-down circuit, there are some manufacturers using the constant current circuit, compared to the straw hat LED Post piece LED heat slightly better thermal conductivity of the substrate, with the aluminum plate can be part of the heat export. However, due to the heat of the LED or ignored, in power SMD LED energy-saving lamps, no radiator, and still use the plastic shell, the light fades is still serious. RC Buck low-end power, due to the instability of the grid voltage, current fluctuations, the brightness fluctuations, the prices moderate.

The third category: made by high-power SMD LED, LED energy-saving lamps, power supplies commonly used by the constant-current isolation circuit, ie, a constant current, usually 5 watt LED chips such as 5W LED in series, using constant current 300mA current source power supply, wide voltage power grid fluctuations, the current does not change, the luminous flux that is, to maintain a constant brightness, 5 SMD LED welding above the aluminum plate, aluminum plate and then combined with the heat sink, the use of The heat can be quickly dispersed to ensure that the LED chip temperature is lower than the LED junction temperature allowed in order to ensure the true useful life of the LED energy-saving lamps. Such high price of LED lights, good quality and direction of development of the LED energy-saving lamps.

LED energy saving lamps have a small size, high luminous efficiency, long life, low power consumption, easy to use, by the majority of consumers. So far, LED energy-saving lamps into the millions of households, but the LED lighting market is not very mature at this stage, standards vary for the various manufacturers, the LED lighting standard has not been introduced, which also restricts the LED lighting market healthy development.

Market analysis

At present, semiconductor lighting industry, the formation of the three pillars of the United States, Asia, Europe, three regions led the distribution of industries and competitive landscape, the United States Cree, Lumileds, Nichia, Japan (Nichia), Toyoda Gosei (Toyoda Gosei), Germany Osram monopoly high The end product market.

Five companies in product and market characteristics, and Nichia and Toyoda Gosei plays an important role in the development of LED, LED complete industrial chain, Nichia in 1994 to produce the blue chips, and patented technology has a monopoly advantage; such as Cree, GelCore, has its own mature technology system, but focus only on the industrial chain extension and microarray; Lumileds\\ focuses on the R & D of high power LED lighting field strength in the white strong.

New entrants to the industry\\ s production capacity, technical capability and LED veteran is about to go hand in hand. Like Taiwan is already a major producer of white LED outside the United States and Europe, more important amount of origin of the blue LED chip. For example, some of the industry has developed high-brightness blue LED chip 1700mcd 1400mcd also reached the shipping stage. So far as product output and quality, not inferior to the traditional LED manufacturers.

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For Commercial process and solution for LED general lighting

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Trend of energy saving and environmental protection, LED lighting has become the target of many regulatory bodies, such as solid state lighting standards of the U.S. Department of Energy \"Energy Star\" program, version 1.1 was in February 2009 entered into force, the Chinese Institute of Standardization It is reported that in 2010 released the Chinese version of the LED lighting efficiency standards. Estimated that in 2012, LED drivers and related discrete devices market size will be approximately $ 688 million in 2008 increased to $ 1.308 billion and compound annual growth rate of 17.4%.

LED general lighting is still in the initial stage

LED prospects fired hot, but relevant data have shown that in the light bulb and fluorescent tube replacement, recessed lights, street lights and parking lights, work lights (table lamps, cabinet lighting) based general lighting market, still less than 1% of the proportion of LED lighting applications outdoor LED street lighting, for example, mostly only as a government demonstration project, the real commercial popularization seems to still take time.

ON Semiconductor (OnSemi) Hong Kong and China, senior applications manager Cheng Tsung believes that LED street lamp has been able to be used as a demonstration project, of course, depends first on its high luminous efficiency, low lighting reflection loss, does not require high pressure, mercury-free and more secure features of ; Secondly, compared to general lighting, LED lighting is easier to add digital or analog dimming capability, easy to realize remote control, and can provide ultra-high brightness and color of lighting in foggy, rainy days and other special circumstances. In addition, the cost of laying power costs, as well as aspects of life, LED street lights are significantly better than high pressure sodium lamp.

But at the same time, its cost is relatively high, power reliability, and short range, is not conducive in the higher altitude work is still an important factor to hinder the rapid development of LED street lamp. On the other hand, if the government timely introduction of LED street lighting standards, will also be the popularization of LED street lamps are very powerful means.

Fairchild (Fairchild) the PLM lighting technology, marketing manager Lee Woo said LED street lighting is part of the government energy efficiency projects, upgrade not only include the replacement of light bulbs, and also includes the use of long-lived rectifiers. \"The first step is to upgrade to LED lights, installed in newly developed areas and then gradually replace the existing old-style street lighting is expected in the next five years, today most of the lights will be LED lighting alternative.\"

ADI Central regional sales manager Zhang Jing, compared to outdoor lighting, LED interior lighting is in its infancy, the current price is not high, this is because the lumen cost is too high, on the other hand, because the LED indoor lighting products too few types of lighting designers suffer no way to select, set up obstacles to the promotion of indoor lighting products. His advice given to the development and promotion of LED indoor lighting products should focus on the product family, integrated, intelligent and humane, to improve the luminous efficiency of luminous flux utilization and minimize the overall lighting costs.

Challenges Key words: \"hot\", \"drive\" and \"cost\"

Maxim (Maxim) business manager PieroBianco, \"Dimension\" and \"electrically compatible\" LED lights whether the success and popularity of the key factors. \"The reason is simple, retrofit lamps must be able to install within the framework of the previous light source on the existing electrical infrastructure Of course, you must be able to work properly, ensure that no lights flashing.\"

He further explained that the existing framework of the physical limitations (ie, driver board must be small enough) and a thermal limitation on a retrofit lamp. These factors restricted the design of a replacement lamp conditions (such as of PAR, R and A-type specification), the greater the difficulties faced by the smaller size of the application, such as MR16 and GU10. Compared to the size factor, thermal limiting, tend to be more critical with other technologies, LEDs emit only visible light, infrared waves radiated energy does not produce. Therefore, the LED higher energy efficiency than incandescent or halogen lamps, the vast majority of heat dissipation by conduction in the lamp.

\"Taking into account the heat dissipation is a key factor of the the constraints lamp intensity, the use of LED technology in lighting and updating products is difficult to achieve the brightness level can be accepted by the mainstream market. Therefore, in order to break the brightness limit, it is necessary to solve the heat problem , which is the product successfully to commercialize an indispensable condition. \", Piero stressed that.

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Design of high power illumination LED constant current drive

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With the continuous progress of human society, science and technology continues to improve. Human more and more attention to energy efficiency. Light humans have a special preference, with the generation of semiconductor devices, the efficiency of fluorescent lamps can no longer meet the demand. The new generation of lighting devices will inevitably born.
This study is the high-power illumination LED constant current drive. Brief introduction to the history of the development of the LED, to assess their development of values ??and trends, especially in the energy efficiency of the LED. Based on Linear Technology s LT3466 chip, its brief analysis of the development of small LED Light systems.

Chapter 1 Introduction

1.1 history of the development of lighting devices

Throughout human history of lighting, mainly through the fire lighting, incandescent lighting, fluorescent lighting in three stages. With the breakthrough of a new generation of semiconductor materials GaN, high brightness blue and green light-emitting diodes, in particular the advent of the white light-emitting diode (LED), the development of semiconductor technology following the trigger of the microelectronics revolution later in the birth of a new industrial revolution – - lighting revolution. The white LED light source is expected to become incandescent, fluorescent and high intensity discharge lamps, the fourth generation light source. Research and in-depth understanding of the application of LED lighting in the area we now face new challenges.

Semiconductor solid lighting the light-emitting mechanism of the device as follows: when the electrons and holes in the semiconductor, some special active regions in the composite, which produce the photon and the photon energy and the semiconductor band gap. Since 1968 the first batch of LEDs began to enter the market, has been nearly 40 years. With the development of new materials and process improvements, the LED tends to be high brightness and full color. The emergence of GaN blue LED, is to extend the field of LED applications.

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Heat affected not only the light intensity will directly affect the drive

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Moving the service life of the board. Piero said that in order to send a higher light intensity, the lights must work in a very high temperature (+80 ° C to +100 ° C). This temperature, the life of the driver board will limit the performance of the entire lighting, especially electrolytic capacitors design facing a difficult problem. Because the electrolytic capacitor will soon be dry at high temperatures, leading to its working life is not over thousands of hours, it has also become a factor restricting the whole life of the lighting.

Linear (Linear) power supply product, product marketing director TonyArmstrong analysis, the choice of the LED drive circuit depends largely on the input voltage range, the LED string to the cumulative voltage drop, and enough to drive LED current required This has led to a variety of possible LED driver topology. \"But no matter what kind of topology, optimized LED driver is very important for the reliability and life of the LED products.\"

Before Cheng Tsung opinion, still a gap in addition to the LED light quality compared to traditional lighting, another problem can not be ignored, due to LED lighting to the complex design of the electrical, optical, thermal, mechanical and other aspects of the current lack of unified design standards, a direct result of the uneven quality of LED lighting products on the market today, this is also a short-term, more difficult to be accepted by the public.

In addition to the mentioned difficulties and challenges, cost pressures, of course, can not be avoided. In this regard, the former Cheng Chung and Li Ying Woo two, said: \"Compared to the traditional lighting of the CFL lamp or incandescent lamps, the current price of LED lights are still expensive, to a large extent hindered the development of LED lighting. High reliability in a LED lighting key factors, but also increased cost pressures. \"

LED lighting solutions

The Piero highlights Maxim LED driver launched 120VAC/230VAC input and 12VAC input lights. It is reported that such programs using a single-stage conversion, shaping the input current, so that the lights will not flicker in the dimming condition, and at the same time compatible with triac and post along the dimmers and electronic transformers design. On the other hand, without electrolytic capacitors not only help to reduce the program size, so that the driver board can be installed within the framework of the small retrofit, can also extend from the usually less than 10,000 hours to 90,000 hours LED lamp life.

Should woo Lee suggested that the power rating of the application, select the four topological solutions:

* Due to the small PCB area and low BOM cost is a ball embedded bulbs PSR flyback solution for low power applications (15W). Its unique selling point is the Fairchild proprietary TRUECURRENT technology, can be changes in CC / CV is reduced to + -5%, and no secondary side feedback circuit can be built-in MOSFET devices, can reduce the PCB size.

* With CRMPFC controller single-stage PFC flyback solution is mainly for mid-range power applications (40W), allegedly capable of supporting high-efficiency, high power factor, low THD and low bill of materials cost.

For high power applications (40W) for the 100W application of PFC + Flyback solutions, as well as for applications 100W PFC + LLC half-bridge to solve the programs are a good choice. And the latter due to the zero voltage switching (ZVS) technology, can be more efficient to more than 90%.

ON Semiconductor also apply to different power AC-DC power supply, LED general lighting solutions. The its NCL3000 example, a single-stage power factor correction TRIAC dimmable LED driver for 8W-25W power for residential and commercial AC-DC-powered LED lighting applications, the use of CrM anti-shock structure with a single stage topology to provide high power factor greater than 0.95, therefore saving the DC-DC converter segment. In addition, single-stage PFCLED drive device NCL30001 CrMPFC + QRPWM drive device NCP1607 + NCP1377 CrMPFC + LLCPWM drive device NCP1607 + NCP1397 or NCP1392 / 3 then the main-oriented power \"50W street lighting and high-power regional lighting applications, a typical can effect can be more than 92%.

ADI will focus on the AD converter on a variety of 12-16 bit ADC for LED street lamps and indoor lighting applications. For example: AD7457, AD7466, and the realization of the CDC (capacitance to digital converter) functions AD7153, AD7745, can be achieved LED automatic switch to achieve power-saving features.

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For The main direction of energy saving LED lighting

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Due to the current global Nearly half of carbon emissions come from electricity and heat production sector, so to save energy, thereby reducing carbon emissions is an important way of energy saving. At present, China s total electricity consumption continues to rise in 2010, total electricity consumption of 4.19 trillion kwh, an increase of 14.56% over the previous year, from January to November 2011 was 4.28 trillion kwh, up by 11.85%. Therefore, saving energy is to complete an important part of the energy saving work.
On the morning of November 4, 2011, "China to phase out incandescent roadmap press conference" held in Beijing. Conference, National Development and Reform Commission National Development and Reform Commission, Ministry of Commerce, General Administration of Customs, State Administration for Industry and Commerce, the State General Administration of Quality Supervision, Inspection and Quarantine jointly issued a notice on the progressive ban on the import and sale of general lighting incandescent. Decided from October 1, 2012, in accordance with the power size of the phased gradually banned the import and sale of general lighting incandescent.

Development and Reform Commission, China s electricity for lighting accounts for about 12% of the total electricity consumption, energy-saving lamps than incandescent bulbs, saving 60% to 80% through the implementation of the roadmap, it is expected that China will achieve the annual saving of 48 billion kwh reduce carbon dioxide emissions by 48 million tons. Phasing out of incandescent, for the promotion of China Lighting Industry structure optimization and upgrading, promote the realization of "12" emission reduction objectives, tasks, and actively respond to global climate change of great significance.

LED Light (Light-Emitting-Diode Chinese meaning) is a way to convert electrical energy into light energy of the semiconductor light-emitting diodes, it has changed the incandescent tungsten light and energy-saving light-based toner light principle, and the use of electric light.

LED is the most development potential in the new century a new light as a fourth-generation light source, its characteristics fully comply with the requirements of the "green light" is the ideal green lighting products. The so-called "green light" refers to the science of lighting design, high efficiency, long life, safe and stable performance of electrical lighting products (including the light source, electrical accessories, wiring accessories and dimming control devices, etc.), and ultimately achieve the completion of environmental protection, efficiency, comfort, safety, economy, good for the environment and improve visual comfort and lighting systems.

In fact, LED lighting is not just a product, but a system, a productivity. Its scientific, security, economic, industrial lighting can not only good to meet the industrial production of special environmental requirements and reduce energy consumption. And comfortable visual environment can reduce the workers fatigue rate, error rate, and even the probability of the accident, increase productivity, and ultimately to achieve the goal of energy-saving, value-added, efficiency, and enhance corporate social responsibility.

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