With the advent of the high oil price era and the growing problem of global warming, recent topics related to energy conservation and reduction of CO2 emissions continue to heat up. The continuous rise in electricity prices has prompted various power-saving methods to come out. Among them, the replacement of traditional fluorescent lamps with LED lighting that can greatly reduce power consumption is most effective. LED lighting is also promoted all over the world, from auxiliary lighting to main lighting, and even street lamps. With the breakthrough of LED module quality and conversion efficiency related technologies, the trend of LED replacing traditional fluorescent lamps has become more and more obvious. Industry experts believe that LED will become the mainstream of lighting in the next three to five years.
According to estimates by the Taiwan Photovoltaic Industry Association (PIDA), LED light sources will grow 13% in 2008, reaching US$98 million in 2007, and will officially exceed US$100 million in 2009. The Taiwan Industrial Technology Research Institute (IEK) also believes that with the continuous improvement of LED technology and the wider application fields, the LED lighting market is expected to reach US$771 million in 2010, with a compound growth rate of 39% from 2006 to 2010.
Actively develop high-power LED driver <br> <br> In fact, the recent warming of the relevant market also to mobilize the enthusiasm of the Taiwan-related downstream industries, in terms of Taiwan's IC design industry, there are many non-analog and analog IC manufacturing The company is engaged in the field of LED lighting driver ICs.
Overall, driver ICs used in LED lighting will have higher requirements in all respects than other LED applications, especially in terms of current output consistency and constancy. Basically, the lED driver IC needs to control one or more LEDs. The brightness of the LEDs is approximately linearly proportional to the amount of current passing through. Therefore, in order for the LEDs to emit the same brightness, the amount of LED current connected must be kept the same. A slight change in current affects the display brightness, which is unacceptable for LED lighting applications.
In addition, the EMI/EMC of the LED driver IC itself, the power conversion efficiency, and the driving of high-power LEDs are all concerns of the development of LED lighting driver ICs. Among them, the solution to drive high-power LEDs is bound to become a product line that the relevant industry is vigorously developing. Because LED lighting needs to successfully replace traditional fluorescent lamps, it is necessary to develop high-power LEDs. LED lighting is expected in various applications of LEDs. However, the development of high-efficiency LEDs is a technology that is extremely lacking in the LED industry in Taiwan. Therefore, in recent years, the company has been actively involved in the research and development of high-efficiency LEDs. In terms of high-efficiency LEDs, it is now possible to produce prototype products of up to 150 lm/W in foreign laboratories, with a target of 100 lm/W commercial products, in order to meet the main lighting needs. At present, LED modules that have been mass-produced on the market are mostly 60-80 lumens/watt.
High conversion efficiency can be truly energy-saving <br> <br> Overall, LED illumination reason generally favored, simply because compared to traditional fluorescent lamps, LED has significant power savings. However, in order to truly save energy, in addition to relying on the material properties of the LED itself, as mentioned above, the conversion efficiency of the LED lighting driver IC plays a key role, and many operators are striving to develop this technology. The new LED lighting driver IC product launched last year is an example.
The company has successfully developed a 1.2A "constant current mode" high efficiency DC-DC converter, the MBI6650, which is different from the traditional "constant voltage mode" DC-DC converter, and uses the innovative Hysteretic PFM technology to improve the use of current drive. The lifetime and efficiency of LEDs in lighting applications. The Hysteretic PFM technology used by Accumulation Technology not only avoids interference with audio, but also switches at a high current state. The switching frequency is slow at low currents, making the system conversion efficiency of light load and heavy load high respectively. 85% and 90% greatly improve the efficiency of LED lighting system operation and save energy.
The MBI6650 is a driver chip that uses a TO-252-5L package and requires only four external components, thus reducing PCB size and reducing cost. For high-power LED lighting applications, the input current range of this chip is also amplified to 9~36V. In addition, built-in comprehensive protection measures and heat sinks can improve the stability and safety of the chip operation. Accumulation currently focuses on LED driver ICs, ranking the ninth in the global market share, and the products are concentrated in LED display boards. In addition, the accumulation of LED backlights and lighting market is also optimistic, in the backlight part, the accumulation of the introduction of Warburg strategic cooperation, plans to cut into small and medium-sized LED panel driver IC. As for LED lighting applications, Accumulation has set up Jinxin Optoelectronics through investment, and plans to attack the LED lighting market. Jinxin Optoelectronics specializes in the development and design of LED lighting controllers and optoelectronic applications, providing solutions for LED lighting applications.
In the future, we are optimistic about LED lighting and backlight applications. We have set up Jinxin Optoelectronics through investment. In the future, with the support of China's urban lighting policy and large-scale local standards, the accumulation will continue to enhance R&D and integration capabilities, and continue to attack LEDs with exclusive global patent technology. Lighting and display application market. Accumulation currently accounts for more than 40% of the revenue from mainland China, accounting for more than 60% of the mainland China market. The 2008 Beijing Olympics debut will bring growth momentum, with an estimated 50% growth in revenue compared to last year.
Reducing external components and providing high-power conversion efficiency of a full-featured LED driver IC will be a very important issue. The power conversion efficiency of the company's LED driver ICs is as high as 90% or more. The company is now actively targeting the general lighting market, providing the required LED driver ICs, as well as driving solutions for automotive or medical LED lighting as a medium- to long-term goal.
In terms of automotive lighting, according to Yole Developpement's research, in 2009, the market value of high-brightness LEDs in automotive lighting applications will exceed 800 million US dollars, of which LED lighting in the car accounts for 60%, and the rest is LED outside the car. illumination. It is understood that for the driver IC for automotive LED lighting, the main challenge comes from the load dump (Load Dump), which means that the car generator is disconnected from the battery for some reason, and the voltage of the generator is suddenly high. phenomenon. In general, the vehicle power supply must pass this test.
For general lighting applications, Arthur Wright's existing Indoor Lighting Led Driver series includes the high-efficiency step-down LED lighting driver solution model AX2002~AX2006, which currently supports 1~10W and withstand voltage of 5~40V.
In addition to LED backlighting, the company introduced a step-up LED backlight driver + current balance / over voltage protection / over current protection solution, currently supports 4 to 100 LED backlight modules. Wang Fuji also said that the LED backlighting solution for 5~12-inch TFT panels will show significant growth in the fourth quarter of 2008, and the application of notebook computers or UMPCs is the most popular in the market.
As the market for LED lighting has gradually expanded, Arthur Wright has also actively promoted the market and determined a number of development directions. One is to provide lighting equipment customers with a complete LED driver standard power solution, which is the modularization of LED lighting power; the other is to simplify the design and reduce the number of external components, which can shorten the production cycle of customer products, and Celite offers a highly integrated solution that simplifies the overall external components. He also emphasized that the company's LED driver solutions are fully protected, including over temperature, over current and short circuit protection, so no additional protection lines are needed to help customers reduce system costs.
In addition, Arthur Wright continues to develop high efficiency / high power and highly integrated LED lighting driver products. In connection with the mastery of the process, the current processes used by Arthur Wright include Bipolar, HV-CMOS, Bi-COMS and BCD, which are different from the general industry and only use CMOS process. Wang Fuji said that Arthur Wright's main R&D team has a fab background, so it can produce highly integrated products through advanced processes. Arthur Wright's current wafer partner is Magnachip Korea.
Grasp the trend, close to the market <br> <br> the LED driver IC, the different fields of application design requirements are slightly different. In terms of general lighting, LED driver ICs need to work closely with LED manufacturers to understand and be close to customer needs. For example, the newly popular LED decorative lighting market is an area that is worthy of attention, especially for MR-16 cup lamps or projection lamps. Among them, mainland China is a major demand market, and has been regarded as a “first-class theater†by many LED-driven IC players.
It is also worth noting that there is a technical development direction. This is why many analog IC operators in Taiwan today use AC-DC or DC-DC to drive LED lamps, but this method is easy. Mass production bottlenecks are caused by the lack of power factor correction (PFC) and high harmonic distortion (THD). Therefore, in the long run, PFC must be considered for integration with power drives. In addition, high integration, high-power LED driver solutions are the product development direction that the industry must continue to pay attention to.
Furthermore, LED lighting has a close relationship with government regulations. Therefore, relevant industry players should actively cooperate with industry and government to master the latest progress in the development of LED lighting power specifications, so as to launch the products that best meet the needs at the first time and seize market opportunities.
According to estimates by the Taiwan Photovoltaic Industry Association (PIDA), LED light sources will grow 13% in 2008, reaching US$98 million in 2007, and will officially exceed US$100 million in 2009. The Taiwan Industrial Technology Research Institute (IEK) also believes that with the continuous improvement of LED technology and the wider application fields, the LED lighting market is expected to reach US$771 million in 2010, with a compound growth rate of 39% from 2006 to 2010.
Actively develop high-power LED driver <br> <br> In fact, the recent warming of the relevant market also to mobilize the enthusiasm of the Taiwan-related downstream industries, in terms of Taiwan's IC design industry, there are many non-analog and analog IC manufacturing The company is engaged in the field of LED lighting driver ICs.
Overall, driver ICs used in LED lighting will have higher requirements in all respects than other LED applications, especially in terms of current output consistency and constancy. Basically, the lED driver IC needs to control one or more LEDs. The brightness of the LEDs is approximately linearly proportional to the amount of current passing through. Therefore, in order for the LEDs to emit the same brightness, the amount of LED current connected must be kept the same. A slight change in current affects the display brightness, which is unacceptable for LED lighting applications.
In addition, the EMI/EMC of the LED driver IC itself, the power conversion efficiency, and the driving of high-power LEDs are all concerns of the development of LED lighting driver ICs. Among them, the solution to drive high-power LEDs is bound to become a product line that the relevant industry is vigorously developing. Because LED lighting needs to successfully replace traditional fluorescent lamps, it is necessary to develop high-power LEDs. LED lighting is expected in various applications of LEDs. However, the development of high-efficiency LEDs is a technology that is extremely lacking in the LED industry in Taiwan. Therefore, in recent years, the company has been actively involved in the research and development of high-efficiency LEDs. In terms of high-efficiency LEDs, it is now possible to produce prototype products of up to 150 lm/W in foreign laboratories, with a target of 100 lm/W commercial products, in order to meet the main lighting needs. At present, LED modules that have been mass-produced on the market are mostly 60-80 lumens/watt.
High conversion efficiency can be truly energy-saving <br> <br> Overall, LED illumination reason generally favored, simply because compared to traditional fluorescent lamps, LED has significant power savings. However, in order to truly save energy, in addition to relying on the material properties of the LED itself, as mentioned above, the conversion efficiency of the LED lighting driver IC plays a key role, and many operators are striving to develop this technology. The new LED lighting driver IC product launched last year is an example.
The company has successfully developed a 1.2A "constant current mode" high efficiency DC-DC converter, the MBI6650, which is different from the traditional "constant voltage mode" DC-DC converter, and uses the innovative Hysteretic PFM technology to improve the use of current drive. The lifetime and efficiency of LEDs in lighting applications. The Hysteretic PFM technology used by Accumulation Technology not only avoids interference with audio, but also switches at a high current state. The switching frequency is slow at low currents, making the system conversion efficiency of light load and heavy load high respectively. 85% and 90% greatly improve the efficiency of LED lighting system operation and save energy.
The MBI6650 is a driver chip that uses a TO-252-5L package and requires only four external components, thus reducing PCB size and reducing cost. For high-power LED lighting applications, the input current range of this chip is also amplified to 9~36V. In addition, built-in comprehensive protection measures and heat sinks can improve the stability and safety of the chip operation. Accumulation currently focuses on LED driver ICs, ranking the ninth in the global market share, and the products are concentrated in LED display boards. In addition, the accumulation of LED backlights and lighting market is also optimistic, in the backlight part, the accumulation of the introduction of Warburg strategic cooperation, plans to cut into small and medium-sized LED panel driver IC. As for LED lighting applications, Accumulation has set up Jinxin Optoelectronics through investment, and plans to attack the LED lighting market. Jinxin Optoelectronics specializes in the development and design of LED lighting controllers and optoelectronic applications, providing solutions for LED lighting applications.
In the future, we are optimistic about LED lighting and backlight applications. We have set up Jinxin Optoelectronics through investment. In the future, with the support of China's urban lighting policy and large-scale local standards, the accumulation will continue to enhance R&D and integration capabilities, and continue to attack LEDs with exclusive global patent technology. Lighting and display application market. Accumulation currently accounts for more than 40% of the revenue from mainland China, accounting for more than 60% of the mainland China market. The 2008 Beijing Olympics debut will bring growth momentum, with an estimated 50% growth in revenue compared to last year.
Reducing external components and providing high-power conversion efficiency of a full-featured LED driver IC will be a very important issue. The power conversion efficiency of the company's LED driver ICs is as high as 90% or more. The company is now actively targeting the general lighting market, providing the required LED driver ICs, as well as driving solutions for automotive or medical LED lighting as a medium- to long-term goal.
In terms of automotive lighting, according to Yole Developpement's research, in 2009, the market value of high-brightness LEDs in automotive lighting applications will exceed 800 million US dollars, of which LED lighting in the car accounts for 60%, and the rest is LED outside the car. illumination. It is understood that for the driver IC for automotive LED lighting, the main challenge comes from the load dump (Load Dump), which means that the car generator is disconnected from the battery for some reason, and the voltage of the generator is suddenly high. phenomenon. In general, the vehicle power supply must pass this test.
For general lighting applications, Arthur Wright's existing Indoor Lighting Led Driver series includes the high-efficiency step-down LED lighting driver solution model AX2002~AX2006, which currently supports 1~10W and withstand voltage of 5~40V.
In addition to LED backlighting, the company introduced a step-up LED backlight driver + current balance / over voltage protection / over current protection solution, currently supports 4 to 100 LED backlight modules. Wang Fuji also said that the LED backlighting solution for 5~12-inch TFT panels will show significant growth in the fourth quarter of 2008, and the application of notebook computers or UMPCs is the most popular in the market.
As the market for LED lighting has gradually expanded, Arthur Wright has also actively promoted the market and determined a number of development directions. One is to provide lighting equipment customers with a complete LED driver standard power solution, which is the modularization of LED lighting power; the other is to simplify the design and reduce the number of external components, which can shorten the production cycle of customer products, and Celite offers a highly integrated solution that simplifies the overall external components. He also emphasized that the company's LED driver solutions are fully protected, including over temperature, over current and short circuit protection, so no additional protection lines are needed to help customers reduce system costs.
In addition, Arthur Wright continues to develop high efficiency / high power and highly integrated LED lighting driver products. In connection with the mastery of the process, the current processes used by Arthur Wright include Bipolar, HV-CMOS, Bi-COMS and BCD, which are different from the general industry and only use CMOS process. Wang Fuji said that Arthur Wright's main R&D team has a fab background, so it can produce highly integrated products through advanced processes. Arthur Wright's current wafer partner is Magnachip Korea.
Grasp the trend, close to the market <br> <br> the LED driver IC, the different fields of application design requirements are slightly different. In terms of general lighting, LED driver ICs need to work closely with LED manufacturers to understand and be close to customer needs. For example, the newly popular LED decorative lighting market is an area that is worthy of attention, especially for MR-16 cup lamps or projection lamps. Among them, mainland China is a major demand market, and has been regarded as a “first-class theater†by many LED-driven IC players.
It is also worth noting that there is a technical development direction. This is why many analog IC operators in Taiwan today use AC-DC or DC-DC to drive LED lamps, but this method is easy. Mass production bottlenecks are caused by the lack of power factor correction (PFC) and high harmonic distortion (THD). Therefore, in the long run, PFC must be considered for integration with power drives. In addition, high integration, high-power LED driver solutions are the product development direction that the industry must continue to pay attention to.
Furthermore, LED lighting has a close relationship with government regulations. Therefore, relevant industry players should actively cooperate with industry and government to master the latest progress in the development of LED lighting power specifications, so as to launch the products that best meet the needs at the first time and seize market opportunities.
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