In order to promote energy conservation and carbon reduction, governments have successively promulgated the time limit for banned (banned) incandescent light bulbs. Together with the “Ten Cities and Ten Thousand Miles†policy in mainland China, LED street lights and commercial opportunities to replace traditional light bulbs are expected. In order to seize this ride, LED driver IC National Semiconductor (NS) launched a high-performance solution with application reference design to actively seize the city.
For the LED streetlight market, National Semiconductor has developed a wide range of input voltage Buck Switching series of LED driver ICs with a maximum input voltage of 75 volts. A single LED driver IC can be used to drive multiple LEDs. National Semiconductor's Asia Pacific Marketing Manager Li Zhiyuan said that the series of LED driver ICs can support up to ten to twelve LEDs per string, and the conversion efficiency can reach more than 95%, which helps to reduce costs. In addition, unlike other LED driver ICs, the compensation circuit needs to be fine-tuned, which makes the design of many LED lamp manufacturers difficult. The company's integration of single-junction field-effect transistor LED driver IC will save the adjustment inconvenience. Li Zhiyuan estimates that LED street lights will grow faster in 2010, and the market size will be more than double that of 2009.
In addition to pure LED streetlights, the recent boom in solar-powered LED streetlights has also sprung up. National Semiconductor has developed a solar LED streetlight reference design through the implementation experience of LED streetlights three years ago. The architecture drives fifteen LEDs in series, dramatically reducing development processes and costs.
In addition, according to the market research agency Strategies Unlimited, LEDs will replace the traditional light bulb market, and the lamp bulbs and PAR lamps will be the fastest growing areas. The market value of the lamp bulb market is estimated to be $142 million in 2009. It climbed to 2.87 billion U.S. dollars in 2013, with a compound growth rate (CAGR) of 113% from 2008 to 2013; the output value of PAR lamps increased from US$35 million in 2009 to US$1.734 billion in 2013, and CAGR was as high as 174%.
Li Zhiyuan said that dimmable LED bulbs will be a big selling point for LED light sources to replace traditional light sources. However, traditional light sources have poor dimming effects, and most LED lights cannot be used with dimmers. National Semiconductor has announced an LED driver IC solution that can be combined with dimming to create a variety of dimming effects. He also admitted that LED dimming is an emerging market. Many customers are interested in this field, but the technology threshold is high. Now, through the new LED driver IC, it will support customers' demand for entering the market. (Editor: Xiao Zhou)
LED industry will start a new round of economic scale in 2010
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