LED lighting prospects can be expected to drive the IC industry actively grab

With the advent of the era of high oil prices, as well as global warming is becoming increasingly serious, energy conservation and reduce emissions of CO2 related topics continue to heat up. The rising price of various power saving methods have emerged. Among them, in order to significantly reduce the power consumption of LED lighting to replace the traditional fluorescent lamp efficacy is the most significant, around the world is also pushing LED lighting, from auxiliary lighting to the main lighting, and even road lights. With the LED component quality and conversion efficiency related technology breakthrough, LED replace the traditional fluorescent lamp is becoming more and more obvious, industry experts believe that in the next three to five years, LED will become the mainstream lighting.

According to the Taiwan area Optoelectronics Industry Association (PIDA) estimates that in 2008 the LED light source will grow by 13% in 2007, reaching $98 million, in 2009 will officially exceed $100 million. Taiwan Industrial Technology Research Institute (IEK) also believes that with the LED technology upgrade and application fields more and more widely, the LED lighting market is expected in 2010 will reach $771 million, 2006~2010 compound annual growth rate reached 39%.

Actively develop high-power LED driver

In fact, recent market warming has aroused the enthusiasm of the Taiwan area of upstream and downstream related industries, the IC design industry in Taiwan area, there are many simulation and Simulation of IC manufacturers to join the LED lighting driver IC.

Overall, compared to other LED applications, the use of LED lighting driver IC will be more demanding in all aspects, especially in terms of consistency and constancy of current output. Basically, the LED driver IC need to control one or more pieces of LED, LED and brightness by electrical flow linearly proportional relationship, so to make LED emit the same brightness, must be connected in LED current with same. Slight changes in the current will affect the display brightness, which is unacceptable for LED lighting applications.

In addition, the LED drive IC itself EMI/EMC, power conversion efficiency and drive high-power LED are LED lighting driver IC development issues of concern. Among them, the driver of high-power LED solution is bound to become the industry's efforts to develop the product line, because LED lighting to replace the traditional fluorescent lamp, it is necessary to develop high power LED. Taiwan ITRI optoelectronic components and system application of group leader Zhu Mudao pointed out that in a variety of applications in the LED project, LED lighting has been looking forward to, however, research and development of high efficiency LED is the Taiwan LED industry is extremely lack of technology, R & D in the electro-optic active in high efficiency LED. Zhu Mudao said, in the high efficiency LED, currently abroad laboratory standards have made up to 150 lumens / watt prototype products, the goal is 100 lumens / watt commercial products, so as to meet the main lighting required. The current market has been mass production of LED modules are mostly 60~80 lumens / watt.

High conversion efficiency can really save energy

On the whole, LED lighting has been widely favored, but because compared to traditional fluorescent lamps, LED has a significant power saving effect. However, to truly save energy, in addition to material characteristics depend on the LED itself, as mentioned above, LED lighting driver IC conversion efficiency play a key role, many industry more strongly the development of this technology, accumulation of science and Technology launched last year in LED lighting drive IC is a new product cases.

The company recently successfully developed high efficiency DC-DC - MBI6650 converter and traditional constant voltage mode DC-DC converter with different 1.2A constant current mode, service life and efficiency and the use of innovative HystereticPFM technology to enhance the use of current driven LED lighting application. Accumulation of science and technology with HystereticPFM technology, except to avoid the interference of audio, switching frequency in high current state; and switching in the small current when the frequency of the slow, the light load and heavy load system conversion efficiency as high as 85% and 90%, significantly enhance the efficiency of the operation of the LED lighting system. Electric energy saving. MBI6650 is the use of TO-252-5L package and requires only four external components of a driving chip, so it can reduce the PCB size, effectively reduce the cost. For high power LED lighting applications, this chip's input current range also expanded to 9~36V. In addition, the built-in full range of protective measures and heat sink, can improve the stability and safety of the chip operation. Accumulation of the current main LED driver IC, the global market share of ninth, the product is concentrated in the LED display board. In addition, LED is also optimistic about the backlight and lighting market, in the backlight part, the introduction of the introduction of Warburg Warburg strategy cooperation, plans by the small size LED panel driver IC cut. As for LED lighting applications, has accumulated through investment to set up Jinxin photoelectric, plans to attack the LED lighting market. Jin Xin photoelectric focus on the development and design of LED lighting controller and optoelectronic applications, to provide solutions suitable for LED lighting applications.

Accumulation of science and technology chairman Yang Lichang said, optimistic about the future of LED lighting and backlighting applications, has been set up by investment in the future Chinese Jinxin photoelectric, city lighting policy and around the large standard case support, will continue to enhance the accumulation of development and integration, with global patented technology continues to attack LED lighting and display application market. Accumulation is currently about 4 of revenue from mainland China, the mainland market share of more than 60%. 2008 Beijing Olympic Games will bring growth momentum, estimated revenue growth of 5 compared to last year.

Reduce external components to provide full functionality

Turning to the takeoff of the LED lighting market, Arthur Wright, senior manager of marketing department, said Wang Fuji, LED drive IC high power conversion efficiency will be a very important issue