LED lamp is not yet mature CFL drive market prospects look good

In hopes of green environmental protection, LED lighting has become the focus of the market, many lighting manufacturers flocked into the room. But the LED lamp market is not mature, from the global market, the growth of CFL energy-saving lamps more robust. In the days before the Hongkong International Lighting Exhibition, NXP semiconductor lighting products market senior manager Chen Rong said, making LED lamps is not flexible, the equivalent of LED want to rely on their own shortcomings to replace the traditional lighting, so LED should use lighting innovation, rather than put it into the bulb and the lamp, and the market potential not, fall short of the market, so the most suitable LED is used for intelligent lighting. The current CFL drive market exceeded expectations, so NXP believes that the CFL market will continue to be strong in the future.

Enhance LED light effect is fundamental

LED lamp cooling has become the focus of the current. Chen Rong believes that the real effective way is to directly enhance the light effect of LED, rather than focusing on the improvement of the heat, it is very effective, and it is not necessary. Because the LED with the process improvement, its light effect can be doubled every 20 months, which is similar to Moore's law of the semiconductor industry.

For more than 400W of high power lighting program, based on efficiency and cost considerations, the use of resonant drive has become the consensus of the industry. In the field of low-power lighting below 250W, the use of Buck and flyback drive. The size of the drive scheme is small, the cost is high, and the security is poor. The flyback is safe, but the size is large and the cost is high. For the United States, Japan, these countries and regions with low voltage electricity market, because the pressure difference from 110V to 60V is small, so it is relatively easy to implement LED lights in these areas. In addition, the Japanese government subsidies for the LED lamp is 50%, next year, LED lights will gradually become the mainstream in japan. In China and European countries are suitable for the use of flyback drive scheme, but the performance of the LED lamp in such an input voltage is difficult to improve.

In addition, in order to reduce the ripple and prolong the service life of the LED lamp, the driving scheme in the market is to place the electrolytic capacitor at the input or output. However, some people in the industry believe that the performance of electrolytic capacitors will become the bottleneck of LED lighting, semiconductor manufacturers have also launched a non electrolytic capacitor. But Chen Rong stressed that the electrolytic capacitor is not the bottleneck of the LED driver program. As long as the choice of good quality and the electrolytic capacitor circuit is arranged to avoid such problems, at the same time, he believes that without electrolytic capacitor scheme are not mature enough, there are obvious problems of EMC, at the same time without electrolytic capacitor scheme through standard test also requires a certain amount of time spent.

According to reports, from the end of 10 years in May, NXP shipped a SSL2101 driver chip 10 million. Its SSL2102 in Las Vegas International Lighting Exhibition won the technology innovation award. Based on the NXP chip dimmable LED bulbs are also dozens of manufacturers do. At the Hongkong International Lighting Exhibition, NXP showed a LED lamp dimming scheme, unlike digital dimming scheme, the scheme uses analog dimmer old, this is to the user without the need to re decoration Home Furnishing can use LED dimmer.

Chen Rong claimed that the mainland's current LED lamp market confusion, the need for a reshuffle process.

In addition, in the street lamp, how to locate the relationship between HID and LED street lamp, it is worth examining. From the system point of view, HID used in street lamps and light efficiency than LED street lamp is also high, HID lights are more suitable for higher position lighting, such as sports venues lighting. In the car headlights, HID accounted for 20% of the market share, the future of this figure will continue to increase, while the current LED is mainly applied in the car taillights.

NXP will focus on CFL

It is understood that the front end of the NXP lighting chip manufacturing in Holland, the back-end packaging and testing in Suzhou. NXP in high quality energy saving lamp below 25W driver chip market share accounted for an absolute advantage, the CFL market shipments 60 million driver chips, because most of the global lighting products production in the mainland, of which 40 million are in the China sales. Therefore, the NXP lighting market with 10 chip design engineers and 10 application development engineers. According to reports, its UBA2211 is designed by the Chinese team for the Chinese market, dragon chip.

In general, the life of the bulb is determined by the rate of survival that can be achieved by continuous lighting for a certain period of time. But in fact, 90% of the old energy-saving lamp product life, limited to fast off. These bulbs are not switched on the actual switch about 6000 times, but the lamp is still good, the appearance of the filament look black, but the filament in the switching process because of the loss and broken. We know that when the light is bright, the electrons are emitted from the filament to produce light, while the filament from the electricity up to the process of gradual brightness will emit atoms and continue to lose. The NXP chip to provide fast light function, shorten the starting time of the bulb, the bulb can be preheated to reduce filament loss. Therefore, the application of NXP chip new energy-saving lamps, can support more than 300 thousand switches, so that the life of the lamp to extend 2-3 times. In the light of the product, it is said that the use of NXP driver chip super energy-saving lamps will be available, the product can be adjusted to 1%.

In 2013 the new EU standards from 2009 10 thousand times the number of switch and 50% light 6000 hours survival rate, upgrade to 30 thousand times and 70%. industry speculation should be closer to the future of new national standard and European standard, so the new EU standards with reference value.