标签：solar led street light circuit

solar led street light circuit and led high power

High-brightness light-emitting diode (LED lights) for its small power consumption, long life, fast response speed, no flash, small, non-polluting, easy and integrated features, is becoming the traditional lighting industry upgrading to a new generation of light. In energy saving, environmental protection have become an increasing concern today, semiconductor lighting is to become the new economic growth point, and thus attaches great importance to by governments around the world, the scientific community and industry. So far, the United States, Japan, Europe, mainland China and China Taiwan, etc. have been launched their own semiconductor lighting, high power LED lighting industry has become one of the most watched industry.

solar led street light circuit and led high power

It is worth noting that so far upstream epitaxial silicon technology has been mature and stereotypes, cheap LED chips have been able to meet the needs of the lighting, the transfer and development of pricing forward midstream terminal market of packaging and downstream applications. This means that who-chip applications, to create a long-life, high-efficacy power LED lighting products, who is likely to become the ultimate winner of the LED industry. High power LED lighting package and the application of the problems have become prominent, one of the most critical is how to solve the heat problem of high power LED lighting, this is not only the technical aspects of structural design and engineering applications, but also involves the thermal management mode and fluid mechanics, and other scientific issues. Completely different with the three-tier structure of the existing chip aluminum plate and a heat high-power LED series lighting technology, we developed an integrated chip integration of a cooling (two-story structure) high power LED lighting series lamps “in the technology roadmap may have the significance of the revolutionary and subversive, will become a new direction of development of high power LED lighting industry.

A high power LED lighting product status

LED luminous efficiency can make about 30% of the energy converted into light, the remaining 70% of the energy is almost converted into heat, so that the temperature of the LED. Its heat is very small, low-power LEDs, basically do not have to take cooling measures can be applied, such as instrumentation lights, lights, small-size LCD screen backlight and so on. When applied to the field of commercial buildings, roads, tunnels, mining and other lighting for high-power LEDs, the heat is a big problem. If the heat of the LED chip can not spread it out, will accelerate the aging of the chip, the light fades, color offset, shortening the life of the LED. Therefore, the structure model and thermal management design of high power LED lighting system is very important.

All high-power LED lighting on the market today are made of chip aluminum plate heat sink three-tier architecture model “, that is the first chip package formed aluminum panel LED light source module, and then the light source module placed on the radiator manufacturing into high-power LED lighting.

It should be noted that the high-power LED thermal management system still used in the LED early for lights and display lights, small power LED thermal management mode. Chip aluminum plate heat sink three-tier architecture model “Preparation of high-power LED lighting, there are obviously unreasonable in terms of system structure, such as the structure between contact resistance and high junction temperature, low thermal efficiency, so the chip The heat released can not be effectively export and shed be in the path, leading the LED lighting light efficiency is low, the light fades, life is short and can not meet the lighting needs.
How to improve the package thermal capacity is one of the key technologies of this stage, high-power LED to be solved. The direction and focus of the development of LED lighting products are: high power, low thermal resistance, higher light, low light, small size, light weight, thus making the cooling efficiency of the LED’s have become increasingly demanding.

However, due to the restrictions of the structure, cost and power consumption and many other factors, high power LED lighting is difficult to use active cooling mechanism, but only the use of passive cooling mechanism, but the passive cooling has greater limitations; and LED energy conversion efficiency than low, is still about 70% is converted to heat, even if the luminous efficiency to 1 times 40% of the energy into heat. In other words, it is difficult to do not consider the extent of heat dissipation, so in the long run, the cooling of high power LED lighting is a long-standing problem.

The timing of high-power LED for lighting is now mature, and the development of efficient natural cooling thermal management systems, has become a high-power LED lighting to achieve the prerequisite and key factors of industrialization. Therefore, new technologies routes and system architecture to completely solve the cooling problem of high power LED lighting.

Two new, high-power LED lighting industry technology roadmap

Existing high-power LED lighting cooling technology exists to thermal resistance, low heat capacity, we are trying to chip a heat integration (two-story structure) model “to address the low luminous efficiency of high power LED lighting, the light fades serious cost Advanced series of questions.

2.1 technology roadmap

Chip a heat integration (two-story structure) mode, not only to go in addition to the structure of the aluminum plate, but also multiple chips on directly placed on a heat sink to form a multi-chip module single light source, was prepared by the Integrated High Power LED lamp, light source for the single, showing the surface light source or cluster light.

2.2 The key technology

How to enhance the ability to conduct heat to the chip, reduce the thermal resistance of the interface layer, related to the structural model of thermal management systems, fluid mechanics and super-thermal conductivity materials engineering applications; how to effectively control the heat storage of the heat dissipating base, planning convection heat path, the establishment of efficient natural convection cooling system, proceed from the lamp structure design.

2.3 The technical program

By changing the package structure of LED light source, the structure of cooling and lighting structure model to reduce the thermal resistance layer; super-thermal conductivity materials, to increase the thermal conductivity of the chip heat source; to optimize the thermal management system based on “chip a heat integrated two-story structure, increase air flow, the formation of natural convection.

2.4 The design concept

Prepared to take a modular high-power LED lamps. Package of light, heat, shape and structure as a whole module between the module is independent of any one module can be replaced individually when a partial failure, simply replace the faulty module without having to replacement of other modules or the overall change will be able to continue working normally. All modules part of the lamp can hand disassembly, convenient, fast, low-cost maintenance.

2.5 Design Points

System module, in addition to meet the heat lamp replacement requirements must be met for the optical (optical efficiency) demand for LED lighting, and modeling (market) demand.

3, a cooling chip integrated structure Introduction

“Chip a heat integration (two-story structure) mode is a new type of LED light source package model, structure model and thermal management system mode. High power LED lighting, the use of the technology model prepared not only completely solve the heat problem, but also effectively solved such as the problems in the distribution of light, luminous efficiency, lifetime and maintenance, has developed a long life, high luminous efficiency high-power LED series products, such as street lights, downlights, tunnel lamps, mining lamps, car headlights, landscape lights and other lighting equipment.

3.1 Technical Features

3.1.1 will be the chip and the aluminum alloy + thermal conductivity composite material matrix (radiator) to connect as a whole, the unique application of high-power LED packaging technology, will focus on multiple chip package directly on the heat dissipating base, so that the chip and the heat dissipating base the thermal resistance between the smaller, the entire cooling matrix is ​​a complete lighting, the formation of an integrated high-power LED lighting components.

3.1.2 design thermal management system based on the principle of bionics, the establishment of the two-story structure of chip integration of a cooling thermal resistance model to the junction temperature calculation and life prediction.

Chip, a heat integrated two-story structure is characterized by a direct heat source chip package on the radiator, as the heat source temperature increases, air flow occurred in the porous heat sink, porous flow channel for air convection, heat comes out automatically, to ensure the normal working of the chip in the safe use temperature range. Advanced thermal conductivity and thermal convection system to ensure good cooling effect, to further improve the luminous efficiency of the chip.

3.1.3 the chip (45mil × 45mi1), integrated package (chip concentrated in a small area), high luminous efficiency of the surface light source with high flux density, the total luminous flux, low-glare characteristics.

At present, the use of the technology has been fabricated chip heat integration (two-story structure) mode high-power LED lighting, such as street lamps, tunnel lights, downlights, spotlights. In addition, high-power LED car headlights are need to strengthen the cooling fans, difficult to meet the application requirements of the market-oriented, two-story structure made of cluster high-power LED car headlights, to solve the automotive light industry using LED light source the limitations of the manufacturing automobile headlamps

3.2 Product technical specifications and advantages

(1) cooling efficiency: the use of natural cooling methods, completely solve the problem of high power LED cooling (temperature <4 ° C, the heat sink temperature <60 ° C, measured under the conditions of the ambient temperature> 35 ℃);

(2) high current: rated current of the supply of chips in each tablet 400 – 450mA;

(3) High luminous efficiency: the entire lighting efficiency of 90.9 lm / W;

(4) long life:> 50 000h;

(5) The light is small: the lighting of Quality Supervision, Inspection and Testing Center: 1 000h life test matt decline;

(6) integrated: the integrated of COR (Chip On Radiator), the chip integrates directly bonding the radiator integrated with integrated bonding in the aluminum panel COB (Chip On Board) is completely different. Single, integrated chip showed a surface light source, a single light source or cluster light (installed glass lenses) injection;

(7) lighting effects with the conventional non-LED light source does not change the habits of mankind’s run out;

(8) structure is simple: easy to maintain, without the overall change.

4, high power LED lighting industrial technology development direction

At present, the technology roadmap for high-power LED lighting industry, we believe that there are two routes to choose from: one way is to continue along the chip aluminum plate and a radiator (three-tier structure) mode “technology roadmap development; other way is to open up the “chip a heat integration (two-story structure) mode” technology roadmap. Chip integration of a heat dissipation structure “is an emerging technology, in this structure, in addition to the chip, are new, including a cooling chip integration, packaging, power, complete sets of equipment, testing, and even standard , which makes high-power LED lighting products in the life and luminous efficiency, quality, design, controllability, cost and other aspects relative chip aluminum plate and a radiator three-tier architecture model “has a distinct advantage in high-power efficient semiconductor solid-state lighting research, application and industrialization of a new field that has much to offer.

Nanjing region is to promote the Promise solar led street light circuit

8m-10m high street lamp on 150W can replace the 250W sodium LED high bay lamp (System Power280W), 30m pole lamp, solar led street light circuit, 250W can replace the 400W sodium lamp (System Power450W), on-site visual effects better than a sodium lamp, which lightsNanjing gradually.Pioneered the use of this lighting is Pukou District jiangpu Street and Bridge Town.

Nanjing region is to promote the Promise solar led street light circuit

We have recently seen in Bridge Town, the town’s construction workers are Longbridge Road, West Bay, West Chichiawan on the road to install new street lighting. Accordingto the charge of construction, solar led street light circuit, a few blocks originally are 300W traditional lights, put onthe new Promise street lights, 100 lights, annual savings of about 40,000 kwh of electricity. In Bridge Town before install energy-efficient lighting, the Pukou jiangpustreet has installed eight main road of the Wende, St. Road, Riverside Road area high-frequency electrodeless discharge lamp.
According to reports, this high-frequency electrodeless discharge lamp full name of thehigh-frequency plasma electrodeless discharge both electromagnetic induction principleof combining a new type of light source, solar led street light circuit, is the latest application technology of the 21st century “green light”. The bulb has no filament and the electrode, it does not exist to limit the inevitable component of the light source life, a life of up to 60,000 hours. It is reported that the street lights Promise has received national patents, has formed a series of large-scale production, all indicators have reached international level of similar products, solar led street light circuit, the price is about one-third of the imported products. Jiangsu ProvincialAssociation of Lighting the opinion of the Secretary-General attaches great importance to energy saving, green background, it is necessary to promote high frequencyelectrodeless discharge LED lamps.

Dubai, United Arab Emirates to start 1000MW solar led street light circuit projects

According to foreign media reports, the UAE Vice President and Prime Minister HisHighness Shaikh Mohammed Bin Rashid Al Maktoum announced the launch of the AED12 billion solar project, the project is completed will be the operator of the Dubai Electricity and Water (Dubai Electricity and Water Authority), can produce 1,000 MWof solar energy. The first phase will be completed in 2013, solar led street light circuit, production capacity of 10MW.

UAE officials said the first phase of 10MW project will cost 120 million dirhams, and in line with the Dubai 2030 Integrated Energy Strategy. Under the Energy Strategy, the UAEgovernment plans to use a variety of energy to produce electricity, in 2020, one percentof the electricity supply from renewable sources by 2030, solar led street light circuit, renewable energy target to achieve 5%, of which the majority of renewable energy or from solar energy.
Du Jiabin SGS Electronics Division Director, said: “SGS as the world’s leadingthird-party testing and certification organizations, Panasonic authorized one of therecognized testing and certification organizations, with extensive experience in the field of electronics and professional technical support, full support of the Matsushita Groupenvironmental innovation in corporate vision, and actively assist and cooperate with theMatsushita Group to promote green concepts, and comprehensively promote thePanasonic products comply with global environmental protection and regulatory requirements, solar led street light circuit, such as EU RoHS, REACH regulation, jointly committed to the sustainabledevelopment of electrical and electronic industry to achieve economic , environmental and social harmony and win-win. ”

As an internationally renowned third-party testing and certification services leader andinnovator, SGS has the world’s largest network of regulatory expert, harmful substancescontrol experience and accredited laboratories around the world, can provide enterprises with a comprehensive one-stop electronic electrical solutions, including therestricted substances testing services, product certification, test reports, database services, factory audit services, solar led street light circuit, system certification, training services, consulting services, as well as energy and low carbon services for the corporate R & D, procurement, production, sales and other aspects of the one-stop solution to help businesses “green” manufacturing issues, led high bay a fundamental solution to smoothly and quicklyenter the international market, to occupy a place in the white-hot competition in the international market, to promote the sustainable development of electrical and electronicindustry escort for Chinese enterprises to export.

Japan developed solar led street light circuit the sixth generation fighter

Japan developed solar led street light circuit the sixth generation fighter

In 2010, the defense ministry research ideas of the future fighter, started to take over the future of the F2 fighter fighter envisaged. Since then, the defense ministry launched the idea of ​​”i3″ fighter, in order to refine the specific concepts and new technologies.Defence Technology Forum 2011, the defense ministry has also demonstrated anti-stealth solar led street light circuit technology, and related materials and equipment of the next-generation fighter.Here, we come to understand overview of the sixth-generation stealth fighter known as the “i3” envisaged.

“I3” fighter technology for the successor model of the F2 and F-15 fighter. The so-called “i3” refers to information, intelligence and agility. The idea specifically related to the following seven areas of technology:

A cloud shooting and advanced  solar led street light circuit  cockpit technology

This idea is similar to the led high bay “cloud computing”, the use of advanced data link system, one’s own fleet to form a “cloud”, by way of sharing information, as a group to launch the most efficient attack.

For example, in the combat aircraft fleet to meet the enemy, if A failed to find the near enemy machine B found that the latter may be the other case is passed to the machine A, and the ground radar and marine vessels from import data this system. This allows the fighter attack range to produce a leap in the expansion, and increase the chance of pre-emptive, to reduce ammunition consumption.

2, advanced fire control system, as well as unmanned aerial vehicles “crowd control”

“I3” fighter also requires concerted action with other combat aircraft, for example, in front of as autonomous UAV combat missions, equipped with anti-stealth capabilities of a large radar early warning aircraft, fighter equipped with high-power chemical lasers. They are linked by multiple high-speed data link encryption. In this way, the fighter, if not equipped with a large radar, you can also access to information through unmanned aerial vehicles and early warning aircraft and attack the enemy, thereby reducing the risk of a fighter. If the UAV has its own group of control and self-judgment, can also greatly reduce the burden of fighter pilots.

3, directed energy weapons (high power laser, strong microwave weapons)

Air-to-air missiles are the main weapons of today’s air combat, but its development has reached the limit, solar led street light circuit on the one hand, it is difficult to achieve the speed of Mach 10 or more within the atmosphere, on the one hand, its shape is not conducive to fighter stealth, and is carried in the fuselage bomb bay way in turn limit the number of fighters carrying missiles.

Therefore, the ministry of defense technology research headquarters bold laser weapons and other directed energy weapons practical programs. Moreover, the laser is as self-defense weapons programs has been some progress.

4, light control system

The fourth-generation fighter fly-by-wire system can manipulate the instruction into electrical signals, control the aircraft through the cable. The Research Division has been successful use in the P-1 patrol aircraft, a light control system, will be used for the “i3” concept. Light control system instead of the optical fiber cable in the previous fly-by-wire system. Thus eliminating the possibility of manipulation of the signal by the electromagnetic interference, and greatly reduced the weight of the control system.Therefore, the light control system completely free from electromagnetic pulse attack, which significantly increased the resistance of the sixth-generation fighter on electromagnetic pulse weapons. If the “i3” carrying and use of electromagnetic pulse bomb. Will the loss of other aircraft and missile combat  solar led street light circuit capability. For future fighters, light control system can be described as is the ability to determine the technology of the life and death.

5, above the enemy above the stealth capability

Japan has developed civilian technology and advanced materials, you can use in the development of stealth technology. For example, transparent electromagnetic thin film materials used to manufacture LCD TV is transparent to visible light, but with the characteristics of electromagnetic waves can be interdictions, and therefore can be used to manufacture stealth fighter canopy.

In this regard. The defense ministry attached great importance to the development of metamaterials, “nature does not exist”. In the past, the stealth aircraft rely mainly on the unique contour design, radar scattering in all directions, and the coating can absorb electromagnetic materials to reduce radar reflection surface. “Metamaterials” natural “flow through” material spread to the other direction so that radar waves through the material in a special metal or conductor arrangement, Therefore, in the shape of the design of metamaterials fighter, do not need to give more consideration to stealth capability, while fully taking into account the needs of mobility and other aspects.

6, the next generation of high-power radar

The sixth-generation fighter’s opponent is also a stealth fighter, and so must have a high-power radar in order to strengthen the Discovery of each other’s abilities. Research Division is currently on the radar of the GaN power amplifier, this material can be significantly reduced in the same power so that the volume of the radar antenna.

Another objective in this regard, the 64 sensor on the F22 and F-35 on 21 sensor integration for 8;

7, lightweight high-power engine

To break through this storm, Japan will give full play to their own good ceramics, carbon and composite materials technology, efforts to develop a lightweight high-power engine.Among them, the need to improve the high temperature high pressure capability of the engine fan and the core components, and use of ceramics and other materials to reduce weight.

The highest level of war is “no war subdue the enemy”. Although the “i3” program itself may ultimately only stay in the program, but independent research and development of new technologies of the next-generation fighter, the surrounding countries to form an effective deterrent.

solar led street light circuit turn on Christmas

Christmas is a good holiday, but if we use solar led street light circuit, it would be much safer. As we all konw, solar led street light circuit is very important for LED Lighting Products, if we use good solar led street light circuit, the quality of LED Lights and led streetlight would be good.

Christmas, the name is an abbreviation of “Christ Mass”. Mass is a liturgy of the church. Christmas is a religious festival. To celebrate it as the birth of Jesus, which also known as Christmas. On this day, all the Christian world would have held a special liturgy. December 25 of each year, celebrate the day Christians celebrate the birth of Jesus Christ, at Christmas, most of the Catholic Church will be the first Christmas Eve on December 24, which is held on the morning of December 25, midnight mass, while some Christian churches will be held caroling, and then celebrate Christmas on December 25; another major branch of Christianity – Orthodox Christmas celebrations in the annual January 7 days.
Christmas this name is the abbreviation of “Jesus Caesar”. In addition to mainland China, basic translation for “Christmas” is a more accurate translation. Christians celebrate their faith to celebrate the birth of Jesus Christ Christmas Day “Christmas celebration and Christian at the same time

Spain, the Christmas beauty, speculation began in the 1st century AD. A long time since the date of Christmas is not determined because the exact date of birth of Jesus is controversial, outside the New Testament, there is no documented mention Jesus; “New Testament” do not know the date, of course, No one knows the exact date.
In the first three centuries AD, after Jesus’ birthday is celebrated on different days. 3rd century AD, before the writers want Christmas day up and down in the Vernal Equinox Day. Christianity in Rome was legalized until the mid-3rd century AD, 354 AD the Bishop of Rome specifies the Julian calendar, December 25th for the birth of Jesus day. Christmas date with AD Annals of the created are inextricably linked. BC dating is created in the 5th century BC, later Christmas Day according to the Gregorian calendar, namely BC Annals of the “calendar” to determine the calendar date of the supposed time into BC (Before Christ) and AD (AD is the Latin abbreviation meaning “With our Lord – the era of Jesus”). Later, although the universal Church to accept the December 25 for Christmas, but because of the local churches use the almanac, the specific date can not be unified, so put in December 24 to the second year of January 6 as Christmas Festival of Christmas atmosphere in China, local churches can celebrate Christmas in this section of according to local circumstances.