作者：Blade

We have good policies for anti-dumping of LED landscape lights

 

We have good policies for anti-dumping of LED landscape lights

 

Chinese goods has occurred in the United States, Japan, Europe and other places too many times by the anti-dumping, making the Chinese enterprises have suffered a great loss. Such as can in China to transform into a real local manufacture of the United States, Japan, European manufacturers, anti-invasion sales on the occasion of the arrival of not only not under pressure, but the opportunity to expand sales, due to local manufacture not China parked to the product.

 

So many long-term vision LED landscape lights companies in the United States, set up factories in Europe, production where the country’s local brand of LED lighting. China is a consumer electronic producing countries, China’s electronic product design capabilities, production management capabilities worthy said a world-class TV sets, refrigerators, DVDs, MP3, mobile phones, digital cameras, computers strong manufacturing of electronic products has been adequately proved.

 

LED landscape lights is a consumer electronics products in the domestic mass production, but the current market end study or overseas based. Therefore, changing the structure of the domestic led high bay lighting company, the creation of new mode, perhaps innovative development, a good opportunity for big enterprises. The company’s overseas sales, overseas Market Ministry set to North America, Europe, Europe and the United States market needs as the main objective of the product development department.

 

Demand in overseas markets to guide the company’s new product development, development of distinctive products, to win the production and utilization run a double harvest. The country to open overseas target markets LED landscape lights assembly plant will be designed in China. The production of complete sets of components to get the final assembly of the assembly plant of the country, commissioning, testing, to achieve LED lighting trademarks registered locally in the country, complete LED lighting overseas students in countries where local manufacturing; Very important aspect of the production and localization; in the employment of local people of the host country market, engineers, sales staff, production workers is a sign of localized, it is imperative that the line must be the key to success.

LED picture lighting: white coat and yellow heart

 

LED picture lighting: white coat and yellow heart

 

At present, China is the manufacturer of LED picture lighting companies of the industrial chain has more than 4,000 this year, will increase in a geometric index. So many companies do similar products to compete for the same market is terrible, with predictable results, low-price competition ultimately harm victims, but also very sad. How to get rid of similar products and low-price competition? The best idea is the transposition of design thinking. Confined to the native environment, lighting architect of the continent it is difficult to get rid of is born with deep-rooted design patterns, so many products into the European market to foreigners at a glance Made in China (China). China Red, Chinese dragon is true is the pride of Chinese people, but more is not all of humanity can be accepted, foreigners prefer products into their elements, such as our products allow foreigners mistakenly believe that Made in America.
May be able to sell better, and more, can sell the better prices, more profits. Therefore, the LED according to out lighting design can fully reflect the customs of European and American style LED picture lighting manufacturers imperative. Chinese companies to hire foreign designers today, China’s top companies have a very common thing: These foreign designers in China to design products loved by foreigners.

 

China’s led high bay lighting manufacturers, such as in the market and the lamp shape design part of the second largest sector can employment foreigner employees of the enterprise is undoubtedly a revolutionary initiative. Enable enterprises to create a design appearance by foreigners, while the core by the design of the Chinese people.

 

Cost and market becomes two main factors for mains LED lighting industry

 

Cost and market becomes two main factors for mains LED lighting industry

 

China is the world’s production base of mains LED lighting technology development center in the world of LED lighting, LED lighting market up to consumer countries. But in the past two to three years, due to the price of LED lighting, the cost of Chinese nationals “high”, with the average income of Chinese nationals living index is still far lower than Europe and the United States and Japan and other developed countries, China’s domestic market not the rapid growth of demand for LED lighting, LED lighting market in Europe, North America and Japan. May need three to five years time, the price of LED lighting gradually decreased to the Chinese people to accept, will show a linear growth. The major cost of mains LED lighting – LED light source lamp beads price decreased by 25-35% per year, is expected to LED lighting into the one thousand one hundred people, family time or three to five years. Imagine a decade ago, the retail price of the fluorescent energy-saving lamps each RMB100 yuan, it is a new generation of lighting, how many people can afford? Today the price of fluorescent energy-saving has been reduced each RMB3-5, almost every household in the enjoyment of the fluorescent energy-saving lamps, energy saving and bright. Then, the developed countries the demand for led high bay lighting continue to linear growth in LED lighting companies in Europe and America should market as sales of the main directions in order to meet their needs as their responsibility. For all consumer electronics products: the cost is king, the market for large, low cost and excellent performance products will they be the best price, in order to be accepted by the general consumer market, will be tens of millions of people can afford in order to the formation of large-scale continuous mass production.

Programs and security of non-isolated circuit in solar LED street light

 

Programs and security of non-isolated circuit in solar LED street light

 

Non-isolated circuit programs and security of the race debate in recent years, LED lighting circuit program. In fact, since the incandescent invention and access to thousands of families to illuminate the centuries, although the authentic non-isolated solutions, but has been relatively safe, in the light of the incandescent hand to dabbling it, unless the electrical master. Program of non-isolated circuit lighting products account for a large market share. LEDs present application circuit is non-isolation circuit program, but its application circuit is simple, small-footprint, lower production costs, should be into the millions of households lighting mass market popularity of a new generation of solar LED street light.

 

For the current HV LEDs simple application circuit, the need for supporting high-voltage constant-current source driver IC? Order in accordance with the principle of LED constant current source needs to work reliably, should arouse the concern of our LED lighting engineers and IC design manufacturers, solar LED street light, after all, is a huge market of world-class. Opinion is very necessary to develop a number of the HV LEDs for the high-voltage constant-current driver ICs, in order to improve the current precision and stability of the HVLEDs application circuit, reliability, worthy of the IC design companies to innovative design to create a new generation of power IC products.

 

The HV LEDs due to the application of technology, system circuit Heng less peripheral components, suitable for home lighting require low-cost mass market is likely to dominate the future of general lighting market; LV led high bay lights can be in light color, brightness, etc. for a variety of techniques design and adjustment, applicable to commercial lighting market, such as shopping malls, hotels, guesthouses and other public commercial establishments.

The applications of high voltage LED lighting

 

The applications of high voltage LED lighting

 

The development of LED lighting products using high voltage LED lighting, AC / DC power transformer, without resistance, the overall power consumption can be greatly reduced using a small current is thereby significantly reducing the design requirements of the thermal shell. High-voltage blue 1W LEDs for example, the forward voltage drop of up to 50V, that it is only 20mA drive current output power of 1W, low voltage LED forward voltage drop is 3V 1W LED requires 350mA drive current to output 1W power, the power dissipation of the high-voltage LEDs of the same output power at work is far lower than the low-voltage LED, which means that the cost of cooling the aluminum casing can be greatly reduced. The high-voltage LEDs can bring the lower of cost and weight of high voltage LED lighting, but more importantly, the significance of significantly reducing the cooling system design requirements, which will effectively cleared the LED lighting into the indoor lighting mass market is the biggest technical obstacles.

 

The HV LED application circuit for the LEDs and the LV can be very clear from Figure 5, the LV the LED in the LED lighting must use the AC / DC drive constant current power supply, because the LV LED VF = 3.2V, IF = 350-700mA;the HV of the LEDs in the led high bay lamps should be only one AC / DC rectifier bridge pile and a current regulator diode, because its VF = 50-270V, IF = 20mA; very small compared to the costs and space.

 

 

The basic structure and key technologies for high voltage LED lighting

 

The basic structure and key technologies for high voltage LED lighting

 

The high voltage LED lighting and generally the LV LED has three in the technically most important difference, the first open trench (Trench), the purpose of the grooves is N pieces of small units of the PN junction independently from its groove below need to substrate, the depth depending on the epitaxial structure varies, generally about 4 ~ 8um,, the width of the groove aspect although some restrictions, but the groove is too wide to represent the reduction of the effective light emitting region, will affect the luminous efficiency of the high voltage LED lighting need to develop a high aspect ratio process technology, narrowing the line width of the process in order to increase the luminescence efficiency.

The second is a small unit PN crystallization inter-chip interconnect wires (Interconnect). In general, a good link to do a wire jumper requires a relatively flat surface, a deep ladder-like structure will allow the wire structure is weak and prone to damage under high voltage, high current drive, causing the chip failure, so the development of the planarization process becomes very important. The ideal state is to do the insulation layer, the one and deep trench to be flat and interconnection wires can be smoothly connected. In addition, the high voltage LED lighting and low pressure the LV led high bay lighting main difference in the application as it not only can be used in the circuit of constant current (Constant DC) system, can also be an external bridge rectifier, to be applied directly to the exchange environment, very flexibility.

The module principle for high voltage LED lighting

 

The module principle for high voltage LED lighting

 

In recent years the rapid development of high voltage LED lighting, in particular, landscape lighting, Beijing Olympics, Shanghai World Expo, a large number of applications of LED lighting, the aesthetic of the electro-optical unprecedented shock the senses of the world and popularization of energy-saving LED lighting, LED lighting in the world. Efficient, long life, environmentally friendly concept deeply rooted. Also high due to the cost of LED lighting, LED lamps and fluorescent energy-saving lamp market share of about 5% and 95%, LED lighting into millions of households to take up to 3-5 years.

 

The successful production of high-voltage high voltage LED lighting source for LED lighting has opened a new horizon, creating a new world. High-voltage LEDs module light source (HV LEDs), forward voltage VF compared LV led high bay hypertension, can be artificially controlled design in the production, the HV the LEDs on the same chip modules, which have been completed in the production PN junction on-chip series, the entire module VF, can be designed to 25V, 35V, 45V, 50V… 270V/DC, the LV LED ten times, several times. Positive operating voltage IF = 20mA, compared with LV LED 350-700mA operating current is reduced by one hundred times, therefore greatly reduce the HVLEDs heat, basically the high voltage LED lighting heat dissipation of the LV bottleneck, significantly reduce the use of the cooling aluminum. System circuit does not require a dedicated AC / DC switching constant current source, effectively reducing power consumption and cost.

 

LED industry to usher in the development of led high beam lights

LED industry to usher in the development of led high beam lights

Although the development of LED industry in Jiangmen into a period of rapid growth, but also faces many challenges. From the second quarter of 2011, the LED industry as a whole supply exceeds demand, supply and demand gap of 30%. International e-commerce platform based on the global market forecast: in 2011, Chinese exports of traditional markets in Europe and America total growth of about 10%. Under the influence of the European debt crisis, in 2012, the traditional export markets in Europe and America will be more stable, affected by the decline of purchasing power abroad, led high beam lights, can not be optimistic about the market demand in Europe and America. Under this economic environment, Jiangmen LED industry is an urgent need for transformation, Panjian Yue, general manager of global market operations, said: “In addition to improving product quality, application of new technologies in response to cost pressures, led high bay more importantly, the enterprises ‘group to hold’ to create Jiangmen LED industry group brands, improve the capability of independent innovation, to master the core technology, to respond to changing market conditions in Europe and America. ”
It is worth mentioning that the GMC International Buyer the Jiangmen station “invited many European and American international buyers to attend, led high beam lights, including Schneider, Bedford China, Germany Osram Long and other top international brands, as well as from Argentina, the United Kingdom professional lighting and the Middle East buyers, site procurement negotiations and GMC quality manufacturing and commercial enterprises, a number of buyers have expressed their intent to purchase, and achieved a remarkable success. Procurement site and as a relevant person in charge of one of the organizers of Jiangmen Bureau of Foreign Trade attended the speech, led high beam lights, the procurement will be given a high rating.
LED market to expand rapidly, attracting more and more companies have joined the ranks of the LED industry, which was mixed, good and bad product quality.

The high-voltage LED lights will lead the future lighting market

 

The high-voltage LED lights will lead the future lighting market

 

LED lighting mostly use low-voltage LED light source (LV LEDs), low forward voltage VF was 3.2 ± 0.2V, the forward current, IF, nominal current 350mA/1W or 700mA/3W. Therefore, the switching constant current source, the resulting system circuit power factor loss, increase in system circuit ripple; traditional lamp left us very little room, the drive power of the LED light source is difficult to do well in small spaces ; LED lighting must be attached AC to DC (AC / DC) power conversion systems, the rectifier large buck to high-voltage LED lights source power supply, power loss, the overall power efficiency is difficult to improved; system circuit transformer coupled and resistance accuracy error, and the driver IC with degrees tend to make the transformer manufacturing parameters with the theoretical values ​​vary greatly; removal of the drive power supply ripple and electrical energy storage aluminum electrolytic capacitors, low life expectancy of aluminum electrolytic capacitors became difficult to go beyond the divide of the long life of LED lamps; High-voltage LED lights beads cooling function, conduction-cooled, must use a radiator, limited due to space and cooling difficulties, the whole lamp LED cooling is still a huge bottlenecks; LED light bead, poor heat dissipation, and not timely will result in the LED light bead early light fades; use heat sink will increase the cost of led high bay lighting and its own weight. . . Although the difficulties of that sort of LED lighting design engineers in efforts to improve, but the pursuit of excellent product performance and product cost control has been in a dilemma.

The optimization algorithm makes blue-ray LED applications simple

 

The optimization algorithm makes blue-ray LED applications simple

 

Most of the driving power of the blue-ray LED applications in its use in the production of transformers, inductors, electrical parameters of the requirements of ten high demand precise takes a lot of manpower and financial resources in order to achieve the cost of industrial production is difficult to decline further. Innovation and optimization of the chip algorithm so that the led high bay lights output current accuracy is not sensitive to the periphery of transformers, inductors and other electrical parameters, and reduce the manufacturing costs of the inductors, transformers and LED the whole lamp.

 

BP310X this innovation to optimize the chip algorithm, the application circuit is very simple, few parts around, in line with the concept of low cost, and industrial production. Figure 3 is a typical application circuit, the main stage side of the constant current, the secondary feedback circuit is no longer an obstacle on the power supply size and cost a great convenience, so that the power supply volume to the most demanding occasions, such as Bulb, GU10 spotlights. Traditional optocoupler feedback structure there is the aging of the optocoupler and very safety test within the Light Bulb 60-90 º C ambient temperature, the reliability issues become the focus of attention of the manufacturers and customers. The main stage side of the constant current technology matures, innovation-driven power chip algorithm, the design of new technologies, making the application circuit to become insensitive to certain difficult quality control parameters of transformers and inductors, blue-ray LED applications power and lighting manufacturers that can facilitate improve product performance and lower costs is a win-win choice.