LED refrigerated lighting will be a growing field

Suntech view: isolated transformer based LED driving power supply will be the mainstream; in order to solve the quality problems of system thermal design may lead to inappropriate, the industry is evaluating other non electrolytic capacitor technology; in addition, due to reduction in temperature cold environment, so LED cold storage lighting will be an area of rapid growth.

Isolated and non isolated LED power supply scheme has advantages and disadvantages. We believe that ClassII will dominate in the field of AC/DC lighting, as it simplifies the LED heat dissipation. The ClassI or II system depends on the grounding system, and in most cases the grounding system depends on the specific device. ClassII system is very common, that is, the transformer magnetic windings, insulation tape and physical isolation. The ClassI system requires a ground frame and / or mechanical barrier, while the ClassII system does not require these.

The most important factor influence reliability and life of the electrolytic capacitor is high temperature, while LED lamps usually work at high temperature. The electrolytic capacitor can and are used for lighting applications, but in order to solve the quality problem of system thermal design may lead to inappropriate, as mentioned earlier, the industry is evaluating other non electrolytic capacitor technology, and often get by.

In mobile and LCD TV system, the white LED will continue to gain market share from CCFL. More and more applications of LED will be strengthened, especially in the fields of automobile, aviation, industry and medical treatment. Solid state lighting will grow in areas where LED's initial cost is offset by long life, energy efficiency and maintenance costs. These areas include warehouses, garages and some building lighting. Refrigerated lighting is a rapidly growing area in which temperature problems are alleviated.

Several trends in the development of LED lighting. One is the high brightness LED efficiency continues to improve, as well as driving these LED high efficiency, reliable constant current power supply increase. Followed by the development of relevant laws and regulations around the world, which indicates that the end of the inefficient incandescent lamp, while compact fluorescent lamp (CFL) will gradually withdraw from the stage. If broken, compact fluorescent lamps will release harmful mercury to the surrounding environment. Under the combined effect of these factors, in the long run, the use of LED lighting will be the inevitable choice. Of course, reducing the cost of the system, including LED, thermal management systems and LED drives, including the cost, has been an important factor in promoting LED lighting products widely accepted by consumers.

The main challenge OEM manufacturer, is to meet the energy standards of government and industry development, the standard of efficiency, power factor. At the same time, but also compatible with TRIAC dimming. As with energy regulations as important, quality and long-term reliability of LED is the key factor, because a LED lighting manufacturers are advantages of publicity is the life is much longer than the traditional lighting technology. Only the overall system with long-term reliability, in order to achieve these advantages, the situation has always been the case. In fact, failure is a common phenomenon for many lighting products, mainly in the power supply, rather than the LED problem.

On the design level, this means that OEM must be good at system thermal design. LED has high efficiency (LM / W), but the conduction heat is significantly higher than that of incandescent or fluorescent lamps. And because many applications are encapsulated in a closed frame, there is little air flow to cool the system. Without careful design of thermal management system, LED and its power supply circuit may result in quality degradation or premature failure due to high temperature.

Semtech low voltage series and single series integrated LED drive products. Our products have three major selling points, the first is durability, which makes our products suitable for demanding application field consolidation can ensure long-term reliability. For example, the SC446 pin spacing is 1mm, which can be put into the worst environment by the PCB pollution lead to the possibility of pin to pin failure to a minimum. The second selling point is Semtech rated power is higher, can drive a higher power LED.

Suntech view: isolated transformer based LED driving power supply will be the mainstream; in order to solve the quality problems of system thermal design may lead to inappropriate, the industry is evaluating other non electrolytic capacitor technology; in addition, due to reduction in temperature cold environment, so LED cold storage lighting will be an area of rapid growth.

Isolated and non isolated LED power supply scheme has advantages and disadvantages. We believe that ClassII will dominate in the field of AC/DC lighting, as it simplifies the LED heat dissipation. The ClassI or II system depends on the grounding system, and in most cases the grounding system depends on the specific device. ClassII system is very common, that is, the transformer magnetic windings, insulation tape and physical isolation. The ClassI system requires a ground frame and / or mechanical barrier, while the ClassII system does not require these.

The most important factor influence reliability and life of the electrolytic capacitor is high temperature, while LED lamps usually work at high temperature. The electrolytic capacitor can and are used for lighting applications, but in order to solve the quality problem of system thermal design may lead to inappropriate, as mentioned earlier, the industry is evaluating other non electrolytic capacitor technology, and often get by.

In mobile and LCD TV system, the white LED will continue to gain market share from CCFL. More and more applications of LED will be strengthened, especially in the fields of automobile, aviation, industry and medical treatment. Higher in LED