CTO conference site
A problem with an LED product, the first reaction is to detect whether the power supply has failed. This shows the importance of the power supply for the LED, and the quality of the power supply directly affects the service life of the LED fixture. Therefore, the CTO meeting focused on the issue of Led Power Supply, and discussed the development of power supply with industry experts and scholars.
Zhong Heng Pai Wei Development and Development Manager Zhu Yibo
With the development of society and the advancement of science and technology, energy conservation and environmental protection requirements are getting higher and higher. There is also an increasing demand for LED power supplies, and HVDC with high lifetime and reliability will replace the application of traditional UPS.
The main advantages of HVDC-powered LED lighting systems:
1. High efficiency. The traditional drive power efficiency is about 90%, and the HVDC rectifier module efficiency is greater than 95%. HVDC monitoring is used to implement the sleep function of the N+X redundancy module, which can ensure high efficiency under various load conditions.
2, easy to maintain. The HVDC power supply system is generally placed on the road surface. It does not need to be climbed up for maintenance. The HVDC power supply module has a hot-swap function, which can replace the faulty module under uninterrupted power.
3. Low cost. At present, the power supply can reach a life of more than 20,000 hours. The average price is 2.5-3 yuan/W, and the HVDC power supply can greatly reduce the cost. When the power supply reaches 15KW or more, 1.5-2 yuan/W can be realized. When the number of lamps is relatively large, the use of HVDC power supply can reduce the cost of the entire system.
Luo Wei, Deputy Director of the Emerald Technology Center
Luo Wei's speech theme is "1-7W MR16 small spotlights using solid capacitors instead of liquid capacitors effect comparison", through the following conclusions:
1, using solid capacitors to improve the performance of MR16 small spotlights, without changing the circuit design, can be directly replaced;
2, the use of solid capacitors can double the life of MR16 small spotlights;
3. The lower capacity solid capacitor can replace the original liquid capacitor, which is beneficial to the miniaturization of the circuit and the installation of the whole machine;
4, using solid capacitors, can be used normally in a wider temperature range.
Fu Xiaohui, General Manager of Huagao Core Sources
Intelligent lighting is bound to be an inevitable trend of future lighting, especially wireless intelligent lighting control has a more obvious advantage.
There are three main lighting control methods: wired, wireless and hybrid. Wired has the advantages of high system reliability, short response delay, and high scalability, but the installation cost is high, it is difficult to maintain, and the user interface often fails to meet user requirements. Wireless control can make intelligent lighting simple, and consumers can use it out of the box. Easy to install, easy to use, intuitive user interface and smart photo solution at a reasonable price.
Liao Yuzhu, general manager of Lingguan Semiconductor
"The current dimming power supply on the market is mainly thyristor dimming, which has poor dimming effect, poor compatibility, low efficiency, and fails to meet safety regulations and EMC requirements." Liao Yuzhu, general manager of Leading Semiconductor, said in his speech. Where is the problem? Lack of a perfect solution.
Deputy General Manager of Jiehuaite Microelectronics Co., Ltd.
"Why are there more and more people in myopia nowadays? Bad eye habits are on the one hand. I think Modern Lighting has a great influence on vision, especially the stroboscopic problem of lighting." Vice President of Jiehua Microelectronics The manager remotely shared the stroboscopic power supply scheme in detail.
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