market research institute LEDinside organized by the Taiwan Industrial Technology Research Institute co-electro-optic two-day annual seminar LEDforum2010 LED industry development LED Display Screen LED components and automotive LED to be explored. LEDinside pointed out that 1000 lumens per LED lighting prices and costs about 7-10 U.S. dollars, as costs continued to decline, from 2011 to 2012 onwards, LED lighting market will accelerate carried out, estimates that by 2015, per thousand lumens lighting renault megane car gps dvd are expected to drop U.S. $ 2-3, then the world will be gradually changed into energy-saving light source, and save more than 30% of energy consumption.
in recent years in all aspects of the application of LED showed a trend of rapid growth, among which the LED lighting, LED backlight applications such as the two most attention. Although LED backlight manufacturers are the main source of revenue profit, but the backlight lighting market is much larger than the size of the market, LED industry chain full lace wig are gearing up now LED lighting-related products into the development and promotion.
Philips (PhilipsLumileds) said that the current LED lighting available for every $ 1 of about 100-150 lumens, the U.S. Department of Energy DOE to achieve the requirements of every $ 1 the goal of 1,000 lumens available, you need a lot of efforts. Color temperature of LUXEONRebel3000K to PhilipsLumileds LED lighting products, for example, the current drive at 350mA, Tj 85 ° C, after improvement, the value of research data company can reach 220 lm / W of efficiency.
LED epitaxy and grain from the perspective of Epistar (2448) General Manager Zhou Ming Chun said chip package prices are subject to 500 lumens / $ 1, to achieve the U.S. Department of Energy (DOE) the target. Crystal electric current has been developed 160lm / w LED chip high voltage drive (HVLED), this will contribute to the development of LED general lighting applications solutions. Luminous efficiency not only due to shoulder bag driven by the current decreases, so for better heat dissipation problems to solve, with no converters, AC drives can be used. In addition, the new hybrid electric crystal white LED, the laboratory data has reached 168lm / w of the high efficiency and high color rendering technology.
As for how to reduce the cost of LED production, Ulvac ULVAC Japanese Institute of Semiconductor Electronics Dr.KoukouSuu that the Japanese market, the rapid expansion of demand for LED lighting, LED lighting to attract many businesses to invest, but the company's most pressing or to reduce costs and improve product brightness, luminous efficiency. To process, it can be improved part of the process, including PSS, ITO deposition equipment, plasma etching (plasmaetching), and so on.
Veeco Instruments (Veeco) MOCVD Marketing Director Li Jia also stressed that, MOCVD production and productivity is the development of LED industry, one of the most critical aspect, and MOCVD technology advances reduce the manufacturing cost of LED . Including wavelength, brightness, forward voltage, etc. to reduce yield loss, respectively, and the LED wafer costs through sensitivity analysis, emphasis on product uniformity and repeatability, ensuring LED epitaxial production and so on.
other application markets, the lighting giant Osram Osram president and chief executive Dr.AlfredFelder mentioned, LED ceiling light LED market, due to the emergence of new types of LED light source, so that the depot can cooperate with the LED light source manufacturers more with creative output, and a variety of lights. Meanwhile, the estimated mini-LED light source projector (PicoProjector), to the 2013 market size will grow to 700 million units.
LED street lights, traffic lights and LED market is also an important application areas. EOI Huang Fang-yu, chairman and general manager, said the Chinese market, for example, has been installed in 2009 by 25 million LED lights, Guangdong Province, in 2010 a large-scale demonstration projects to implement the LED industry, is expected to install the LED lights will reach 45 ten thousand. The U.S. also has more than 200 cities in the test equipment of LED lights, and more than 100 cities will notice a large number of purchase LED lights.
2011年12月8日星期四
GT Solar photovoltaic equipment giant to enter the LED industry
OFweek semiconductor lighting Reuters, reported that the solar photovoltaic equipment maker announced its vw touareg car dvd into an increasingly popular GTSolar LED industry, the natural "body" of the crystal growth equipment has become the best entry point. Acquired in July GTSolar Sapphire U.S. manufacturers CrystalSystems, now in great tape hair and yield enhancing technology, equipment, professional transformation also began marketing the hope that the formal launch in 2012 the growth of sapphire equipment to win market acceptance and recognition.
CrystalSystems company has a unique innovation ASF sapphire growth technology, and different from the usual single crystal pulling method, the exclusive use of the principle of heat exchange equipment and sapphire growth technology can facilitate the growth of large size sapphire crystal ingot, has successfully produced substrate of 6 inches, to reduce the future cost of production of the most powerful LED competitor.
LED backlight from the phone natural human hair is welcome, television and general lighting, display backlighting to replace the 3rd wave of the coming of industry. GTSolar ScottKroeger vice president of marketing, said the early layout of the LED industry and will certainly win the future market. According YoleDeveloppement statistics, sapphire market from 2009 to 2013 will be CAGR27% growth rate, the increase in the market for Asia, the Chinese business opportunities.
still on the market today are usually cable tray with 2-inch sapphire substrate LED, while the major LED's to 4 inches, 6 inches into the pace of development has been taken. GTSolar will own R & D in crystalline silicon furnace equipment manufacturing cost and technology led waterproof Switching Power Supply , and from CrystalSystems's ASF technology fully integrated, sapphire for the growth of the industry to bring professional equipment.
CrystalSystems company has a unique innovation ASF sapphire growth technology, and different from the usual single crystal pulling method, the exclusive use of the principle of heat exchange equipment and sapphire growth technology can facilitate the growth of large size sapphire crystal ingot, has successfully produced substrate of 6 inches, to reduce the future cost of production of the most powerful LED competitor.
LED backlight from the phone natural human hair is welcome, television and general lighting, display backlighting to replace the 3rd wave of the coming of industry. GTSolar ScottKroeger vice president of marketing, said the early layout of the LED industry and will certainly win the future market. According YoleDeveloppement statistics, sapphire market from 2009 to 2013 will be CAGR27% growth rate, the increase in the market for Asia, the Chinese business opportunities.
still on the market today are usually cable tray with 2-inch sapphire substrate LED, while the major LED's to 4 inches, 6 inches into the pace of development has been taken. GTSolar will own R & D in crystalline silicon furnace equipment manufacturing cost and technology led waterproof Switching Power Supply , and from CrystalSystems's ASF technology fully integrated, sapphire for the growth of the industry to bring professional equipment.
2011年12月7日星期三
SAFC Hitech factory in Taiwan to expand and strengthen the global high-brightness LED manufacturing capacity
OFweek semiconductor lighting Reuters, recently, SAFC Hitech ® is a Sigma-Aldrich ® Group's led running text unit, following the March 2010 in the United Kingdom Bromborough manufacturing base to expand production of trimethyl gallium (trimethylgallium, TMG), the announcement by The company plans to establish Filling in Kaohsiung, Taiwan (transfilling), technical services, and the production of LED and silicon semiconductor precursors of new specialized facilities, and further full lace wig in Asia-Pacific electronics market. The new facility is expected to operate at the end of 2011, and the use of existing facilities, development of Kaohsiung's capabilities and expertise, the company's expanding coverage to the Asian market.
this new investment will now shift to the new business facility is expected to expand the company's full bottle service and technical base, and a substantial increase in production of high quality specialized precursor capacity to support emerging high-brightness LED (High Brightness LED, HBLED) market and the silicon semiconductor market, ALD and CVD precursors.
through technology and design development to improve efficiency and reduce energy costs focus is to promote the electronics industry to introduce more "energy conscious" products and systems. As the flat screen TV's backlight and energy-efficient vw touareg car dvd such use, LED (especially HBLED) explosion in demand, SAFC Hitech continuing to strengthen the HBLED market and reliable supplier of precursor veteran leadership.
SAFC Hitech President Philip Rose, said: "With the rise of mass production we are experiencing in Asia Pacific customers and partnership activities increased significantly, with our response to the rapid expansion of the HBLED market, is committed to promote the expansion of global production of precursors, are closely linked. Kaohsiung expansion of existing facilities is reasonable progress, which will help us support these markets. by local technical service capabilities in the investment and the use of proprietary technologies and capabilities, we can these important natural human hair to increase our bottle filling, manufacturing and services.
SAFC Hitech is currently the city's infrastructure capacity, can handle the laboratory level and characteristics of highly specialized chemical products and has a special Customer Support Center, through the ISO 9001 certification of quality, safety and environmental regulations through ISO 14001 certification. This facility uses proprietary technology to service the semiconductor industry demands high quality precursor This facility integrated inert gas Filling Station (inert atmosphere transfilling station), can detect low metal and oxygen containing shoulder bag sophisticated analytical instruments, and special cylinder preparation and packaging area. broad structure of government departments (health and safety, quality, accounting, transportation, marketing) to ensure compliance with the highest the standard.
2011年12月6日星期二
Cummins diesel engine failure analysis of common procedures
troubleshoot operation is a systematic project, so make Cummins diesel engine as a whole (a system), but not as a set of components. Failure to grasp the whole situation, have a comprehensive led perimeter displays of the operator to observe the engine, and make the necessary checks and to be pointed out that the cause of the failure analysis.
failure to understand the phenomenon
First of all, to listen to and understand the failure to report symptoms. Some signs of failure may be vague, while others may be more specific breakdown.
Although there are many cases of failure can be very quick and simple access to understand, but some people will 2011 sonata dvd of some examples of maintenance, failure analysis is often made on the first conclusion, we can not rule out these problems. The reason why these situations occur, because there was no learned some important information, or to ignore these important cases.
for maintenance personnel, the employer must, in particular to the actual operator asking, so you have a full understanding of failure problems. In some cases only the operator knows, and you must understand these situations. There are other situations, but only by observing the engine is running or after the demolition of some parts can be found.
some of you may recall a similar failure is a special way to exclude. However, the same fault, not always use the same method to deal with.
maintenance personnel can be in the form below to ask questions about data and information needed to diagnose:
1. Diesel usage
failure before any abnormal noise? A load or light load operation? Acceleration or deceleration? Oil pressure or temperature has changed?
whether there was dust or smoke is not normal? climatic conditions? wind much?
road grade at the time how? first aware of how the failure? oil, fuel, coolant consumption much? buy full lace wig change? How the concentration of smoke?
engine throttle response is sensitive? slowdown normal? stands satisfactory? cold start satisfactory? have been stalled or lack of fire you?
What fuel to use? fuel level and source of what? idling or running at full speed when the surge it? can idle for a long run?
2. Maintenance history
diesel engine is repaired recently? What kind of maintenance?
happened before this failure? Last revised at what time? Recently when oil replacement and the fuel filter?
maintenance system is strict? how to obtain and store the fuel: oil used in the maintenance category and what level?
diesel engine or the number of how many km h? who to repair or adjust?
replace the oil filter when evening bag full-flow oil filter of the filter do? find any metal impurities do?
3. Observations
a clean or dirty diesel? Belt tension situation? Outside without oil, fuel or water leakage? There have been overheating it?
on diesel has made temporary repairs (parts not tighten, broken parts, etc.).
how idle the engine sound? Pulley any chatter put it? Recent repair or replace any parts you?
diesel engine on all or part of the non-standard parts ? whether the adverse pipeline?
oil oil, water and fuel oil level satisfactory it (if it involves the bearing problem, pay attention to the oil situation. have occurred in this case, due to lack of oil to the bearing damage, but only after the operator and then to inject new crankcase oil).
in demolition, and whether the diesel smell, coke, oil sludge, whether under the rocker cover and other adverse conditions?
4. Mechanic before starting maintenance issues to consider
simply ask and understand the situation, not solve any problems. Therefore, you must know before maintenance and fault-related situation, see the interdependence of each issue in order to make judgments.
use all available led waterproof Switching Power Supply with the existing test, the thought process (thinking) is helpful, but not always want to use.
mechanics must be familiar with Chaiyou Fan type, equipment type and operating knowledge. Diesel engine equipment such as torque converters, coolers, and variable speed control and so must be considered.
majority of diesel users to unnecessary downtime and loss caused by premature removal are offensive, so attention should be paid in a planned and targeted maintenance, repair time can make a thorough and a success.
any diesel engine parts because of a problem, may affect the operation of the machine, so you must have extensive experience in identification of diesel engine operation, troubleshooting successfully important condition is to use your knowledge of the diesel engine and parts operation knowledge to troubleshoot the problem, which is a mental logistics activities.
and troubleshooting to find some checks to be carried out, it is not difficult to be done, check the information must be the best backpacks failures. Can not say that the diesel engine out of your eyes with the same last week, a diesel engine failure, that failure on the same reasons.
failure to understand the phenomenon
First of all, to listen to and understand the failure to report symptoms. Some signs of failure may be vague, while others may be more specific breakdown.
Although there are many cases of failure can be very quick and simple access to understand, but some people will 2011 sonata dvd of some examples of maintenance, failure analysis is often made on the first conclusion, we can not rule out these problems. The reason why these situations occur, because there was no learned some important information, or to ignore these important cases.
for maintenance personnel, the employer must, in particular to the actual operator asking, so you have a full understanding of failure problems. In some cases only the operator knows, and you must understand these situations. There are other situations, but only by observing the engine is running or after the demolition of some parts can be found.
some of you may recall a similar failure is a special way to exclude. However, the same fault, not always use the same method to deal with.
maintenance personnel can be in the form below to ask questions about data and information needed to diagnose:
1. Diesel usage
failure before any abnormal noise? A load or light load operation? Acceleration or deceleration? Oil pressure or temperature has changed?
whether there was dust or smoke is not normal? climatic conditions? wind much?
road grade at the time how? first aware of how the failure? oil, fuel, coolant consumption much? buy full lace wig change? How the concentration of smoke?
engine throttle response is sensitive? slowdown normal? stands satisfactory? cold start satisfactory? have been stalled or lack of fire you?
What fuel to use? fuel level and source of what? idling or running at full speed when the surge it? can idle for a long run?
2. Maintenance history
diesel engine is repaired recently? What kind of maintenance?
happened before this failure? Last revised at what time? Recently when oil replacement and the fuel filter?
maintenance system is strict? how to obtain and store the fuel: oil used in the maintenance category and what level?
diesel engine or the number of how many km h? who to repair or adjust?
replace the oil filter when evening bag full-flow oil filter of the filter do? find any metal impurities do?
3. Observations
a clean or dirty diesel? Belt tension situation? Outside without oil, fuel or water leakage? There have been overheating it?
on diesel has made temporary repairs (parts not tighten, broken parts, etc.).
how idle the engine sound? Pulley any chatter put it? Recent repair or replace any parts you?
diesel engine on all or part of the non-standard parts ? whether the adverse pipeline?
oil oil, water and fuel oil level satisfactory it (if it involves the bearing problem, pay attention to the oil situation. have occurred in this case, due to lack of oil to the bearing damage, but only after the operator and then to inject new crankcase oil).
in demolition, and whether the diesel smell, coke, oil sludge, whether under the rocker cover and other adverse conditions?
4. Mechanic before starting maintenance issues to consider
simply ask and understand the situation, not solve any problems. Therefore, you must know before maintenance and fault-related situation, see the interdependence of each issue in order to make judgments.
use all available led waterproof Switching Power Supply with the existing test, the thought process (thinking) is helpful, but not always want to use.
mechanics must be familiar with Chaiyou Fan type, equipment type and operating knowledge. Diesel engine equipment such as torque converters, coolers, and variable speed control and so must be considered.
majority of diesel users to unnecessary downtime and loss caused by premature removal are offensive, so attention should be paid in a planned and targeted maintenance, repair time can make a thorough and a success.
any diesel engine parts because of a problem, may affect the operation of the machine, so you must have extensive experience in identification of diesel engine operation, troubleshooting successfully important condition is to use your knowledge of the diesel engine and parts operation knowledge to troubleshoot the problem, which is a mental logistics activities.
and troubleshooting to find some checks to be carried out, it is not difficult to be done, check the information must be the best backpacks failures. Can not say that the diesel engine out of your eyes with the same last week, a diesel engine failure, that failure on the same reasons.
2011年12月5日星期一
Classification analysis of the LED power
1.1 constant-current type < p> a, constant current drive circuit output current is constant, and output DC voltage as the load resistance is within a certain range of different sizes change, the load resistance is small, the output voltage is low, the greater the load resistance , the higher the output voltage;
b, constant current circuit is not afraid of the load short-circuit, but the non-load completely open.
c, led constant current driver Mercedes dvd is an ideal drive, but the relatively higher prices.
d, the maximum tolerance should be noted that the use of current and voltage, which limits the number of LED's use;
1.2 regulator type
a, when the steady pressure to determine the parameters of the circuit after the output voltage is fixed, while the output load current is the increase or decrease with changes;
b, open circuit voltage regulator circuit is not afraid of the load, but the non-load full short circuit.
c, the regulator drive circuit drive the LED, each with an appropriate resistor string requires only that the average brightness of each string of LED display;
d, brightness will be affected by rectification from the voltage change.
2, the circuit structure by way of classification
2.1 resistor, capacitor step-down mode
through capacitor step-down, use the flash, due to charge and discharge the role of instantaneous current through the LED a great, easy to damage the chip. Vulnerable to voltage fluctuations, power efficiency is low, and low reliability.
2.2 resistance buck mode
buck through resistance, interference by the larger power grid voltage, regulated power supply is not easy to make, step-down resistor to consume a large proportion of energy, so this is very low power efficiency power supply, and the system's reliability is also low.
2.3 conventional Cooling tower step-down mode
power, small size, the weight of too much weight, power efficiency is very low, generally only 45% to 60%, so seldom used, reliability is not high.
2.4 electronic transformer step-down mode
lower power efficiency, voltage range is not wide, generally 180 ~ 240V, wave interference.
2.5 RCC buck mode switching power supply
voltage range is wide, the power efficiency is relatively high, generally can be 70% to 80% wider applications. Because of this control mode oscillation frequency is not continuous, switching frequency is not easy to control, load voltage ripple coefficient is relatively large, abnormal loads and poor adaptability.
2.6 PWM control mode switching power supply
mainly consists of four parts, part of the input rectifier, the output rectifier part, PWM voltage control part, switching energy conversion components. PWM switching regulator is the basic working principle of the input voltage, the internal parameters and led waterproof Switching Power Supply load changes, the control circuit is controlled by the difference between signal and reference signal for closed-loop feedback, adjust the main circuit switching device turn-on pulse width, makes the switching power supply output voltage or current stable (ie, the corresponding constant-current power supply or power supply). Power efficiency is extremely high, generally can be 80% to 90%, output voltage and current stability. This circuit has a good general protection handbag online, a high-reliability power supplies.
2011年12月4日星期日
Alcoa product innovation in applied technology, die casting mold
from the bottom of the United States, according to Alcoa Cleveland the latest news, Alcoa Transportation high efficiency LED transformer, with its advanced vacuum casting technology (AVDC), won the 2009 Outstanding Supplier Award for the automotive industry production processes and capital equipment category award. The award by the United States, "Automotive News" magazine, Ernst & Young and Transportation Research Center, U.S. auto co-founded to recognize the pursuit of excellence and innovation, LED fluorescent tube progress and outstanding business performance auto parts, equipment and service providers.
Alcoa Transportation Products Vacuum Die Casting Technology (AVDC), the lightweight door components into a set of cast alloy technology development, technology and equipment as one of the "system solution" so that car manufacturers passenger grp/frp storage tank and commercial vehicles to reduce vehicle weight maximum 30% -35%, integrated components (60-70% BOM / parts reduction), lightweight door systems and reduce manufacturing costs.
AVDC patented technology with a high strength, high toughness, dimensional stability casting alloys and LED solar street light die part size advantage, making the car door interior cover plate in addition to the composite aluminum or steel other than printing, with more more lightweight material of choice. The innovation patent has been more than the non woven fabric bag leading car manufacturers application, in a recent collaboration with Nissan GT-R high-performance sports car has also been fully reflected.
Alcoa Transportation Products Vacuum Die Casting Technology (AVDC), the lightweight door components into a set of cast alloy technology development, technology and equipment as one of the "system solution" so that car manufacturers passenger grp/frp storage tank and commercial vehicles to reduce vehicle weight maximum 30% -35%, integrated components (60-70% BOM / parts reduction), lightweight door systems and reduce manufacturing costs.
AVDC patented technology with a high strength, high toughness, dimensional stability casting alloys and LED solar street light die part size advantage, making the car door interior cover plate in addition to the composite aluminum or steel other than printing, with more more lightweight material of choice. The innovation patent has been more than the non woven fabric bag leading car manufacturers application, in a recent collaboration with Nissan GT-R high-performance sports car has also been fully reflected.
2011年12月1日星期四
test involving temperature measurement
(1) temperature
test involving temperature measurement range from room temperature to liquid nitrogen temperature led rental screens, the use of thermocouple thermometer, the temperature signal measured by the DMM, collect and input monitoring and control computer, the computer displayed on the screen by the computer automatically recorded and renault megane car gps dvd. At the same time, the computer will be transported to the temperature measured on the instrument panel temperature display device for on-site display.
2) pressure
test pressure measurement Cooling tower of 0 ~ 10M Pa. Analog gauges and the use of precision digital pressure gauge on the instrument panel display system pressure field, while the pressure measurement system using pressure transmitter, and converted to voltage led waterproof Switching Power Supply by the digital multimeter measurement, monitoring and control computer to collect and enter , displayed on the computer screen by the computer automatically recorded and saved.
(3) level
liquid nitrogen in order to ensure a high degree of valve testing to meet the requirements, the use of differential pressure transmitters measure the liquid level. Measuring electrical signals measured by digital multimeter, collected and entered into the computer display, and to remind stop filling liquid nitrogen and liquid nitrogen filling operation.
(4) flow
different forms according to the valve seal, valve allows leakage is different. Soft seal structure of the valve, the leakage rate should be zero. As for the seal of the valve itself is allowed to have a certain amount of leakage. Based on the above, the device is equipped with two measuring flow, one flow meter is a small, used to measure allows a certain amount of leakage seal valve or valves in the relatively soft seal under normal operating conditions when the leakage .
for the small amount of leakage, due to the general flow meter has been unable to detect, observe and be counted best backpacks the open end of the number of bubbles in the water leakage in the form of measurement. The use of computer data acquisition system records the number of electrical pulses, automatic counting.
test involving temperature measurement range from room temperature to liquid nitrogen temperature led rental screens, the use of thermocouple thermometer, the temperature signal measured by the DMM, collect and input monitoring and control computer, the computer displayed on the screen by the computer automatically recorded and renault megane car gps dvd. At the same time, the computer will be transported to the temperature measured on the instrument panel temperature display device for on-site display.
2) pressure
test pressure measurement Cooling tower of 0 ~ 10M Pa. Analog gauges and the use of precision digital pressure gauge on the instrument panel display system pressure field, while the pressure measurement system using pressure transmitter, and converted to voltage led waterproof Switching Power Supply by the digital multimeter measurement, monitoring and control computer to collect and enter , displayed on the computer screen by the computer automatically recorded and saved.
(3) level
liquid nitrogen in order to ensure a high degree of valve testing to meet the requirements, the use of differential pressure transmitters measure the liquid level. Measuring electrical signals measured by digital multimeter, collected and entered into the computer display, and to remind stop filling liquid nitrogen and liquid nitrogen filling operation.
(4) flow
different forms according to the valve seal, valve allows leakage is different. Soft seal structure of the valve, the leakage rate should be zero. As for the seal of the valve itself is allowed to have a certain amount of leakage. Based on the above, the device is equipped with two measuring flow, one flow meter is a small, used to measure allows a certain amount of leakage seal valve or valves in the relatively soft seal under normal operating conditions when the leakage .
for the small amount of leakage, due to the general flow meter has been unable to detect, observe and be counted best backpacks the open end of the number of bubbles in the water leakage in the form of measurement. The use of computer data acquisition system records the number of electrical pulses, automatic counting.
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