With the continuous implementation of national energy conservation and emission reduction policies, the semiconductor (LED) lighting industry has encountered great development prospects. The power supply division of the 771 institute of the China Aerospace Science and Technology Corporation, Jiuyuan, seized the opportunity and made the drive circuit a breakthrough. Reliable constant current drive power supply, and achieved significant results in stages.
LED lighting industry has the characteristics of low consumption, environmental protection and longevity. It is known as the third generation of green lighting. In particular, the luminous efficiency of LED is greatly improved. Semiconductor lighting is considered to be the most likely to enter the general lighting field in the 21st century. One of the new solid-state cold light sources and the most promising high-tech fields. LED lighting life is generally more than 50,000 hours, but its supporting drive power life is only about 10,000 hours, can not match the life of LED, has become one of the bottlenecks restricting LED lighting. 771 power supply divisions have taken advantage of their own semiconductor manufacturing design and packaging technology. At the beginning of this year, the company developed a high-reliability LED constant current driving power source with a temperature of more than 30W as the starting point, and produced a driving power supply for the lighting manufacturer, and gradually entered the LED. Development plan for lighting fixtures and systems. With the young designer Duan Xiaofei as the person in charge of the project team to work hard, hard work, unique way, for the drive power single-pass, can withstand the characteristics of large peak current, combined with its conduction threshold voltage and V / I curve, designed a A brand new LED driver circuit, which is composed of a semiconductor device and a resistor, matched with the life of the LED, the efficiency is as high as 95%, much higher than the efficiency of about 85% of the existing LED driver, and the power factor of the circuit is greater than 0.97. It is better than the industry requirement of 0.9. In terms of volume, since the technology does not require transformers, inductors, electrolytic capacitors, and the like, the drive circuit of the same power is only about one-tenth of the volume of the conventional circuit, and it is easy to realize the integrated design of the drive and the light source. .
At present, 771 power supply divisions have adopted this technology to develop two types of fluorescent lamps of energy-saving T8 series, and completed the 30W photoelectric integrated floodlight source and 90W photoelectric integrated streetlight source, which has been achieved in the field of LED lighting applications. Breakthrough progress. At present, the drive circuit technology has applied for a national patent.
Zou District China's lighting sales target: total over 5 billion 2009-05-18
LonMark International Association established Lighting Advisory Committee 2009-05-18
Urban Lighting Strategy Conference: providing the latest industry information 2009-05-15
Pan Wenbo: Improving brand awareness and mining network platform 2009-05-15
1
LFP Battery, High rate lithium battery,Fast Charging Battery,Lithium Battery Pack,Power Battery Packs,Cylindrical Lithium Battery
Langrui Energy (Shenzhen) Co.,Ltd , https://www.langruibattery.com