High -power White Light LED Street Light Light Light Board Design and Driving Technology

In order to maximize the electricity conversion rate and heat dissipation efficiency of high -power LED street light lighting boards, the design of LED high -power chips is used to expand the area of LED high -power chips, and the electrode optimization technology increases the amount of LED chips. , Make the chip surface the heat flow evenly, the chip work is more stable. Analysis of the packaging process of high -power white light LEDs to improve chip lighting rate, guarantee white light quality, and device heat dissipation technology. Based on the results of the above technology and finite element analysis software on the thermal resistance analysis results of high -power LED devices packaging, the array assembly technology of the COB (Chip On Board) LED chip was determined to create the best technical solution for the manufacture of LED street light lighting boards. LED chip knot temperature is easy to control below 120 C, and good compatibility with external heat dissipation technology. The best distance between the LED high -power chip array chip was calculated through the best backing mathematical model of light. Finally, through the comparison of various high -power white light LED drive solutions, the best driving solution for the white light LED is determined to adjust the brightness for the broad current drive arteries (PWM). At present, more and more LED lamps have replaced traditional lighting lamps, and are used in lighting display, advertising lighting, underwater lighting, architectural lighting, street lights and other applications. Our government has been“Energy conservation”As a national policy. With the country“Energy conservation”The project is carried out in depth,“Green Lighting Engineering”It has been listed as a key promotion project in my country and the cross -century strategy of energy -saving industries. China's lighting industry has entered the watershed of industrial upgrading. In the context of calling for lighting energy conservation and emission reduction, high -efficiency and energy -saving LED products are the focus of industrial upgrading.“The beginning of the new revolution in the lighting field”It integrates many advantages such as environmental protection, long life, high -efficiency energy saving, high color rendering, non -frequent flashes, non -ultraviolet rays, no mosquito, instantaneous startup, wide voltage work range, large width working temperature range and other advantages. The advantage of environmental protection is the leader of energy -saving lighting products. If 10%of the traditional light sources in my country are replaced by LED each year, they can save 9 billion kWh, which is equivalent to 8.64 million tons of carbon dioxide. At present, LED high -power lamp lighting products have also penetrated into all areas of social life. The following is a few commonly used lamps, compared with LED lamps to quantify the advantages of LED lamps. LED lamps advantage comparative quantitative table (commercial electricity: 1.2 yuan/kWh) Jinghan Optoelectronics discussed with you to discuss the advantages of LED lamps in energy -saving transformation by the above table. Consumption. For the current energy -saving lamp or solar lamp tube, the energy saving efficiency is also more than 50%, and the harmful and fatal substances in the energy -saving lamp or solar tube are completely avoided——HG. The crushing of a 36W solar lamp tube may cause the mercury steam content in the surrounding air to exceed 2000 times the national standard; and some scrap lamps are not treated properly, and the mercury contained in the underground. It is a huge harm to the ecological environment. LED lights can not only face the increasing energy crisis, but also provide an important way for the purification of the ecological environment. Therefore, the potential of LED lighting in energy -saving transformation is huge.