Recently, Owens and Changyuntong jointly held the core technology and new product launch conference for de-energized LED standard optical components. During this period, Owens introduced a variety of power supplies including bulbs, fluorescent lamps, ultra-thin panel lamps and panel lamps. LED products. For a time, going to power again once again entered everyone's sight.
What is the power LED? According to Li Bingqian, technical consultant of Changyuntong, the high-voltage constant current technology makes LED light source no longer need power converter, and only needs to be directly applied after rectification. The technology is simple in structure, stable in performance, convenient for automatic production, low in cost, and can meet the national grid. Safety regulations are relevant and more suitable for standardization.
As the popularity of LED lighting approaches, the cost has become the last rope to pull the gate. Technological innovation drives cost reductions to become an urgent issue. Zhang Jun, general manager of Aoqisi, said that the advantages of standardization, automation and large-scale production management modules are to effectively reduce costs, while the performance and price of new products for power-based LEDs are more competitive.
And going to power means that power is no longer needed? A few days ago, the reporter interviewed Zhao Kun, vice president of Sichuan Xinli Light Source Co., Ltd. He said that from the principle of LED illumination and practical application, it is impossible to make LEDs emit light without power supply.
Zhao Kun further said that de-energization is a brand-new LED driver. It can't be understood simply as no need to drive, and don't confuse the concept. De-energization only eliminates some of the devices that limit life in the power supply, simplifying the power supply, simplifying the circuit and the device, thereby achieving higher integration, reducing cost, improving reliability, and extending life. De-energization is more convenient for lighting or light source design, and it plays a very important role in the popularization of LED lighting products.
At present, for LED lamps, especially the lamps with built-in power supply, the internal components will reach hundreds of degrees Celsius, so that electrolytic capacitors, magnetic materials and enameled wires are threatened by the life. The development of innovative driving methods is to eliminate transformers, inductors and electrolytic capacitors, and really improve the life of lamps.
In the future, will de-powering become a trend? Zhao Kun believes that de-powering is of course a trend in LED development. the reason is:
First, the cost, LED development to date, cost is still a fundamental problem that restricts its development. To reduce costs, the high integration of drive circuits is an important direction.
Second, from the development side of microelectronic integrated circuits, the driver chip technology has been relatively mature, just need to choose the driver architecture suitable for LED, and meet the electrical performance requirements of the lighting field. In some applications, the need for dimming also needs to be considered.
Third, in order to add more functions, the miniaturization of devices is an inevitable trend, so individual individuals of a single luminaire must have miniaturization requirements in order to carry more functions, and de-energization is very important and necessary. A ring.
It is reported that with the support of new technologies, the de-energized products launched by Aoqis have a life expectancy of more than 30,000 hours, 25,000 hours of light decay below 20, and can adapt to more application environments, such as peak electricity consumption. The rural family can effectively solve the problem of voltage instability.
But even so, whether there will be a trend in de-energization, there is another voice in the industry. De-energization is only suitable for low-power, and there may be a certain lack of high-power. LED intelligentization is the future development trend, and smart products. Need AC to DC, DC will be the future direction of development rather than communication, AC high voltage drive and DC direction contradict, so I think that power supply is unlikely to become mainstream, and a large number of people in the industry are not very optimistic about this technology. A person in charge of LED power supply said.
In this regard, some industry experts said that the lamps can be applied to the power supply design, but depending on whether the market is worthy of targeted investment, under certain circumstances, the advantages and costs of de-energizing design performance are absolutely competitive. According to the comprehensive consideration of the circuit structure of the luminaire, the power supply design is suitable for a large number of lighting products, and comprehensive consideration can show the advantages.
Moreover, the de-energized design is a technology-intensive project with a long design battleline and comprehensive technical coordination capability to complete the design perfectly, and multiple aspects of innovation, test equipment also needs to develop cross-industry integration, test the overall design team Agglutination.
Zhao Kun said that it takes time to de-energize the design. From technology development and design to finished product manufacturing to mass production, it takes about 12-18 months. Now manufacturers who launch their own products basically start researching and designing this technology at least one or two years ago, and as the technology of each enterprise matures, more and more manufacturers will launch their own de-energized LEDs. New product.
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