In recent years, LEDs have developed rapidly. Affected by the hot situation of China's LED industry, the LED drive power market also presents huge business opportunities. To this end, many enterprises have transformed and started to develop into the field of LED drive power, and have achieved good results. Recently, the reporter visited a number of companies to understand the development of LED driver power, and made the following summary.
(1) LED industry chain leads the development of enterprises
Shenzhen Shenjuyuan Electronic Technology Co., Ltd. was an enterprise that designed and sold semiconductor chips in the early days. Under the leadership of the LED industry chain, a new operating platform was established in 2007. Focusing on the LED power supply field, we are committed to becoming the top LED power solution provider in the Greater China region with design, R&D and technical support.
The development of the market always has its inherent model. At the same time that LED shines, it will also lead the development of its accessories field. LED drive power is the guarantee for the development of LED industry chain. The quality of LED power directly limits the reliability of LED products. Therefore, in the LED industry chain is gradually improving today, the maturity of LED driver power is also crucial.
Many LED power companies have learned that in 2009, the growth rate of the high-power power market of about 100W has been greatly improved. The LED light source of about 100W has more outstanding cost performance than the traditional lighting source, and soon forms an industry. The scale of LED street lights and landscape lighting market. In the context of the rapid development of the market, Shenzhen Shenjuyuan Electronic Technology Co., Ltd. is also accelerating its pace of progress. From the semiconductor chip design to the franchise distribution of related products and the provision of complete LED driver power solutions, we all witness the professionalism of the company and the customer focus.
(2) The industry urgently needs high-quality drive power products
Along with the continuous development of the company, the entire LED market is slowly improving, and the manufacture of high-quality LED drive power products is already an industry development need. Since the LED is a characteristic sensitive semiconductor device and has a negative temperature characteristic, it needs to be stably operated and protected during the application process, thereby generating a driving concept. LED devices have almost strict requirements for driving power. Unlike ordinary incandescent bulbs, LEDs can be directly connected to 220V AC mains. The LED is a low voltage drive of 2 to 3 volts. It is necessary to design a complicated conversion circuit. LED lamps for different purposes must be equipped with different power adapters. In the international market, foreign customers have very high requirements for efficiency conversion, effective power, constant current accuracy, power supply life and electromagnetic compatibility of LED drive power. To design a good power supply, these factors must be considered comprehensively because the power supply is in the entire luminaire. The role is just as important as the human heart.
In 2009, aside from the impact of the financial crisis on the world economy, the demand for high-power LED power supplies in international markets such as Europe and the United States is still very large, and the corresponding export volume of high-end LED products is less affected by the financial crisis. In 2008, the output value of LED application products in mainland China has exceeded 45 billion yuan. LED demonstration application street lamps, LED full-color display screens, display devices, solar LEDs, landscape lighting, consumer electronic backlights, signals, indicators and other applications are still the main application areas. However, in the context of the prosperity of the mainland market, the quality of LED products is mixed, and the requirements for driving power supply are chaotic, which is also the main factor for LED companies to reshuffle. To achieve high-quality products, the first is the overall life of the driver circuit. In particular, the life of key components such as capacitors at high temperatures directly affects the life of the power supply.
Secondly, LED drivers should challenge higher conversion efficiency, especially when driving high-power LEDs, because all power that is not used as light output is dissipated as heat, and the power conversion efficiency is too low, which affects LED energy-saving effect. Play. Third, the LED is dimmed with high dimming efficiency, and the color characteristics are guaranteed to be constant at high and low brightness. At the same time, it is necessary to reduce the cost. At present, in the application of low power (1-5W), the proportion of constant current driving power supply has been close to 1/3, which is close to the cost of the light source, which has affected the market to some extent.
(3) There are many problems in the field of LED drive power
In the domestic market, LED products are in full swing, and the technical requirements for the current output of LED drive power are challenged. In order to extend the service life of LED lighting fixtures, integrated circuit power supplies are often used. Therefore, it is necessary to design a constant current source circuit for power supply. When driving with large current, it is necessary to equip with a large power tube or a thyristor device, and a protection circuit, which leads to LED The power supply circuit is complex and the failure rate increases. Component costs, production costs, and service costs will all increase. At present, the cost of LED itself is high, and the cost of power supply greatly limits the market competitiveness and purchasing group of LED products. The advantages of LED products are greatly reduced, which is another key issue that restricts its development and popularization. .
When the industry develops to an early stage, there will inevitably be many problems, and similar industry bottlenecks exist. For example, heat dissipation, stability improvement, and the like. In addition, because the power industry also lacks uniform standards, how to apply and match with the lamps is a key issue facing the current power industry. Shenzhen Shenjuyuan Electronic Technology Co., Ltd. has developed rapidly in the crisis, seized the opportunity in the craze, landed in the storm, and adhered to its own business model: 1. Providing high-quality competitive semiconductor chips; Provide complete production solutions; 3. Provide mature and stable low-cost professional power products; 4. Design and develop products according to customers' needs, and provide customized products in the shortest time.
For the development of LED, the government has been pushing, which has triggered the LED industry boom. Moreover, the current LED power industry market also presents a chaotic attitude, but this is also a process that must be experienced in the growth and development of the industry.
The industry also mentioned that LED has been widely used in the field of lighting in recent years. There is no uniform standard for the connection between LED chips and driving power. The power, voltage and current levels of LED lamps vary, which determines the LED. Power supplies cannot have uniform specifications. However, companies also put forward their own views. The lack of standards reflects the emergence of enterprises with no absolute authority in this industry. The standards are not necessarily reflected in the performance of individual products. The standards are definitely needed, but it takes time to accumulate precipitation. History to verify.
(4) The future development of the company faces severe challenges
In the current situation of LED products in the Chinese market, LED driver companies will face challenges in the future.
1. Reduce the cost. At present, in the application of low power (1-5W), the proportion of LED constant current driving power supply is close to one-third, which is close to the cost of light source, which affects the market to some extent. .
2, LED drive power should challenge higher conversion efficiency, especially when driving high-power LEDs, because all power not used as light output is dissipated as heat, power conversion efficiency is too low, affecting LED energy saving The effect is played.
3. High-efficiency LED dimming with large dimming ratio, while ensuring constant color characteristics at high and low brightness.
4, the overall life of the LED driver circuit, especially the key components, such as the life of the capacitor at high temperatures directly affects the life of the power supply.
The industry has developed to the present, and it has many difficulties, but the prospects are huge. The fiery heat of the LED lighting industry market will surely bring about the fierceness of related supporting industries. LED driving power supply is an important accessory for its heart, and it will surely usher in a new spring.
Edit: Xiang Zuo
The High-mast Lamp is generally refers to the new lighting device which is composed of the steel taper light pole and the high power combination lamp frame of 15 meters or above.It consists of lamp holder, internal lamp, electric rod body and basic part.Lamp head modelling can according to user requirement, surroundings, lighting need specific and definite;The interior lamps are mainly composed of floodlights and projection lamps. The light source adopts NG400 high pressure sodium lamp, and the lighting radius is 60 meters.The bar body is usually a pyramid structure, which is made of steel plate, with a height of 15 to 40 meters, which consists of two to three sections.
Material characteristics
1. Beautiful appearance, large lighting area, good lighting effect, concentrated light, uniform illumination, small glare and easy to control and repair.
2. Applicable places: city square, station, wharf, highway, stadium, overpass, etc.
3. The lamp pole is a high quality steel plate by moulding into a multi - pyramid splicing steel rod, through hot galvanizing anti-corrosion treatment.
4. The lamp frame is made of high quality stainless steel.
5. Fasteners bolts and nuts are stainless steel.
6. Light source:400W-1000W sodium lamp.
Specifications:
Height: from 18m to 50 m
Suit for: highway, expressway, parkway, freeway, central motorway junction, truck and bus terminals, railyards, ship docks, airports, ferry terminals, prisons, industrial and commercial sites, international borders.
Shape: round, multi-pyramidal, column form, polygonal or conical
Material:
Q345B/A572,minimum yield strength>=345n/mm2
Q235B/A36,minimum yield strength>=235n/mm2
Tolerance of Dimension: ±2%
Lighting Source: 400 W- 5000 W high pressure sodium flood light, light extension :up to 30 000 m²
Light plate: Various figure of selection ,material with hot dip galvanization steel frame
Lifting System: Lifter fixed in the inner of the pole with lifting speed of 3~5 meter per minute
Equipped e; ant ferromagnetism brake and break -proof device, manual operation applied under power cut
Electric Appliance Control Device: Electric appliance box to be the hold of the pole ,lifting operation could be 5 meter away from the pole through wire .Time control and light control could be equipped to realize full-load lighting mode and part lighting mode
Surface treatment: Hot dip galvanized Following ASTM A 123, color polyester power or any other standard by client required.
Joint of Poles: Insert mode, inner flange mode, face to face joint mode .
Design of pole: Against earthquake of 8 grade
Wind Speed: 80 Km/Hour
Welding: We has past flaw testing. Internal and external double welding makes the welding in shape
Thickness: 6 mm to 20 mm
Production Process:
Raw material test→Cutting→Molding or bending →Welding (longitudinal ) →Dimension verify→Flangewelding→Hole drilling →Calibration →Deburr →Galvanization or powder coating, Painting→Recalibration→Thread→Packaging
Packages: Our poles as normal cover by Mat or straw bale at the top and bottom ,anyway also can following by client required
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Jiangsu chengxu Electric Group Co., Ltd , https://www.satislighting.com