Non-isolated drive grabs the market, the core will bring the QX61 series unveiled high-tech LED lighting exhibition

[Text / high-tech LED reporter Liu Pingping] " Non-isolation is an inevitable development direction, non-isolated drive is more efficient, and the cost is lower." Wang Chengxiang, deputy general manager of Quanxin Electronic Technology Co., Ltd., with LED With the continuous improvement of light efficiency, heat dissipation becomes more and more simple, and with the continuous improvement of heat-dissipating materials and performance, many heat-conductive plastics have been able to achieve the heat-dissipating effect close to aluminum, and can also meet the pressure resistance requirements.

“This is a good boost for non-isolated drives. These advances in lamp beads and heat dissipation have made non-isolation inherently efficient, small and low-cost.”

The non-isolated drive is more efficient, which is beneficial to improve light efficiency and save the number of lamp beads. Compared with the isolated LED power supply, the non-isolated LED power supply has the advantages of simple circuit structure, high circuit conversion efficiency, and small number of components.

On the other hand, due to the increasingly stringent cost requirements of the light source in the terminal market, the cost of the isolated power supply solution is high, and the space for future cost reduction is limited, so the future must move toward a low-cost, thin and light solution.

Wang Chengxiang believes that "With the advent of high-voltage LED lamp technology, non-isolated high-voltage linear constant current LED drive power technology has become a new hotspot for LED light source drive. Non-isolated high-voltage linear constant current drive power supply without transformers, inductors and electrolytic capacitors The overall cost can be lower than the isolated or non-isolated switching constant current drive power supply."

"It is the development prospect of non-isolated drive. We have launched the QX61 series products this year and will focus on this year's high-tech LED lighting exhibition." Wang Chengxiang introduced that the QX6102 is a representative of the QX61 series. The product. It is a high-precision step-down high-power LED constant current driver chip with low-cost non-isolated built-in power tube. It is suitable for non-isolated LED constant current drive in the full voltage range of 85Vac-265Vac.

The chip uses a self-powered system, no need to take power from the auxiliary winding, built-in NPN tube, LED lighting solutions can be completed with very few external components. The chip adopts patented technology such as high-end current detection and current mode PWM control of Quanxin Electronics. It has a fixed operating frequency, excellent linearity adjustment and load regulation, and built-in frequency-hopping function to reduce EMI cost.

Wang Chengxiang said that the high-tech LED lighting exhibition is large, professional and authoritative, and is a good LED lighting supply chain communication platform. "It can be said that the high-tech LED lighting exhibition is our best choice."

In the past August, the “LED Lighting Supply Chain Good Products Guangdong Tour Seminar” sponsored by Gaogong LED passed through Zhongshan, Foshan, Jiangmen, Shenzhen and Dongguan. The number of participants in the five seminars was close. In the explosion, nearly 1,500 LED lighting industry chain enterprises in Guangdong jointly explored how to reduce the cost and stabilize the upstream and downstream supply channels by optimizing and upgrading the supply chain when LED lighting enters the rapid growth period.

In five roving seminars, more than 2,000 exhibition brochures were distributed, allowing participants to understand the differentiated features embodied in the high-tech LED lighting exhibition. At the same time, we also cooperated with the local lighting industry associations to select local companies with high requirements for product quality and join the ranks of professional buyers.

“All pre-show supporting activities are to build a truly effective supply chain docking platform for exhibitors and buyers.” Gaogong LED Exhibition Organizing Committee revealed that before the opening of the exhibition, it will continue to be in various LED lighting industry clusters in China. And the key areas of LED lighting distribution launched a carpet-style propaganda campaign.

Just starting on the 27th of this month, the LED lighting supply chain good product tour seminar will be launched in East China, in Hangzhou (August 27), Ningbo (August 29), Nanjing (September 3), Xiamen ( On September 10th, four seminars will be held in four cities. It will continue to promote the 2013 Hi-Tech LED Lighting Exhibition, attract more professional buyers and more professional visitors to participate in the LED lighting exhibition. A new benchmark for the lighting industry exhibition.

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