The price of LED light source modules has been developed in the near future, and LEDs have been widely recognized as green and environmentally friendly cleaning light sources. LED light sources have long service life, energy saving and power saving, simple and convenient application, and low use costs. Therefore. As early as 2008, the world's annual home lighting seat shipments were about 50 billion yuan. The technology of LED light sources has become increasingly mature, and the light flow of each tile has increased rapidly, prompting it to reduce the price by year by year. The large market and continuous stable growth demand for LED green lamps will be the super tsunami market in the integrated circuit industry after VCD, DVD, mobile phones, and MP3! The superior performance of high energy saving, long life, and environmental protection of LED lamps is generally recognized. 1. LED high energy -saving: DC driver, ultra -low power consumption (single tube 0.03 1W) Electric light power conversion is close to 100, the same lighting effect is more than 80%more energy -saving than traditional light sources. 2. LED long life: LED light source is called longevity light. Solid cold light sources, epoxy resin packaging, and no loose parts in the lamp body. There are no shortcomings such as filament lighting, heat sinking, and fast light. More than more. 3. LED Protective Environmental Protection: LED is a green light source, and environmental protection benefits are better. There are no ultraviolet and infrared rays in the spectrum, low calories and free flash, no radiation, and waste can be recycled. There is no pollution without mercury, cold light sources, which can be touched safely. It belongs to a typical green lighting source. The work characteristics of the LED light source module are very low in VF voltage of LED light sources. Generally, it is 2.75 3.8V. Therefore, the output voltage of the LED drive IC is VFXN or VFX1, and the IF keeps constant flow at 15 1,400ma. The LED light source used by LED lamps has two types: small power (IF is 15 20mA) and high -power (IF greater than 200mA). Little power LED is mostly used as LED solar lights, decorative lights, and grille lamps. High -power LED is used for family lighting, spotlights, bottom lights, wall lamps, street lights, tunnel lights, car work lights, etc. The power LED light source is a low -voltage and large current -driven device. Its luminous strength is determined by the current flowing through the LED. The current will cause the LED light attenuation, and the current is too small will affect the luminous strength of the LED. Therefore, the driver of LED needs to provide a constant current power supply to ensure the safety of high -power LEDs, and at the same time achieve the ideal lighting intensity. In the field of LED lighting, in order to reflect the characteristics of LED light energy saving and long life, it is important to correctly choose the LED driver IC. Without a good driver IC match, the advantages of LED lighting cannot be reflected. LED -side light source LED injection molding module LED light strip LED waterproof irrigation glue module Hongyan cabin three -one cabin LED light source module requirements for low -voltage driving chips should be met with the nominal input voltage range of the driving chip, DC 8 40V, to cover wider application needs. Ability to resist pressure is greater than 45V. When the input is AC 12V or 24V, the simple bridge rectifier output voltage will fluctuate with the grid voltage, especially when the voltage is high, the output DC voltage will be high. If the driving IC does not have a wide input voltage range, it will often be penetrated when the power grid voltage is rising, thereby burning the LED light source. 2. The nominal output current of the driving chip requires greater than 1.2 1.5A. As a LED light source for lighting, the nominal current of the 1W power LED light source is 350mA, and the nominal working current of the LED light source of 3W power is 700mA. LED light sources with high power requires a larger current, so the driver IC selected by LED lighting fixtures must have sufficient current output. When designing products, the driver IC work must be used to work at 70-90%of the best working area of 70-90%of the full load output. Drive ICs using full load output current are not dissipated in the small space of the lamps, which can easily lead to fatigue and early failure of the lamp. 3. The output current of the driving chip must be kept constant, so that the LED can shine stably without flashing. The same batch of driving chips is used under the same conditions, and its output current should be as consistent as possible, that is, the discreteness must be small, so that it can ensure effectiveness and order when producing on a large number of automated production lines. For a certain discrete chip with a certain disclosure of the output current, it is necessary to select the selection in front of the factory or put it into the production line, adjust the resistance value of the current setting resistance on the PCB board, so that the LED lamps -the constant current drive board produced by the PCB board The light and brightness of the light source is consistent to maintain the consistency of the end product.

Through the growth of UVLED lamp beads in recent years, whether it is the old rubber print industry, the use of UVLED lamp beads is more and more used. Everyone knows that compared with the traditional solvent -type ink, UVLED curing ink has good gloss, strong three -dimensional sense, no harmful solvents volatilization and other strengths. It is extraordinary. CICS prevents errors such as long drying cycles of solvent -type inks and obtaining an area of land. UVLED optical curing ink is printed after printing. 1. UVLED lamp beads CICF: UVLED lamp beads solidify the principle of solidification: inserted light stimulus or light sensitrant in an extraordinary formula, and receive high -intensity ultraviolet light in UV (UV) light curing equipment in the end. Base, thereby stimulating polymerization, cross -linking, and branches, so that the resin converts the liquid state into a solid state within a few seconds. 2. UVLED lamp beads inkjet printing: The ultraviolet light sources that have been used in the printing industry have accepted light sources such as high -voltage mercury lamps and metal halogen lamps. Due to the year -long type of lamps and power assembly, users are worried about the power consumption of power consumption years. Night and fever caused problems such as the destruction of the printing machine and the destruction of the bearing objects and the occurrence of ozone in the use of printed objects. Following the advent of UVLED lamp beads light curing skills, due to its environmental characteristics, the pollution is small than the solvent type, and the operating cost is even lower than the solvent type. UVLED optical solidification skills are a new skill of the 10 brands of green industry LED lamp beads. It was once rated by the North American Radiation Consortium“5E”Features of industrial skills, which enrich the characteristics of this skill, is efficient, energy conservation, friendly, economical, and compliance. UV curing lights often used in the market today are generally mercury arc lamps, referred to as mercury lamps. The UV mercury lamp has a limited service life, and the energy consumption is not high than the use of coaxing. For the solvent -based ink, because there is no VOC emissions, it has the characteristics of environmental protection and friendly situation. However, there are some hidden pollution in UV mercury lamps. influences. In 2008, LED curing skills first expressed their statements at the Druba Exhibition, which aroused widespread concern in the industry. Many printing machines and ink manufacturers showed their own skills. UVLED solidification is the most attractive skill in the field of energy curing. This skill is based on its energy -saving, efficient, economical, environmentally friendly, and compliant UV high -quality and infrared radiation. The more it is favored by people. At present, the market's demand for LED UV skills is very strong. Digital printing has become the most year -old market for this skill. The inkjet category is at most, and the upperlight of UVLED lamp beads can just be satisfied with this category. need.

Presumably everyone wants to know why LED patch lamp beads will leak electricity? What causes leakage? Xiaobian takes this question to analyze with you what are the leakage of LED patch lamp beads?. 1. LED patch lamp bead bottom glue is too high too thick and causes leakage. 2. Improper craftsmanship causes chip cracks. For example, when the lamp beads are too stressed during the welding wire operation, the pressure of the magnetic mouth is too much pressure, causing the chip to damage. 3. Static electricity causes the lamp bead leakage, and the static electricity is usually caused by friction. This is also the reason why it is easier to leak. Therefore, when producing lamp beads, employees should be required to wear static uniforms and electrostatic caps to minimize the occurrence of electrostatic occurrence as much as possible. 4. There are defects in the chip itself, causing leakage. 5. The chip is contaminated. This is a common problem and a very common problem. The reason may be that you do nt pay attention when you use the chip, so that the chip is covered with dust or water vapor. The LED chip is a very small thing. If you do nt pay attention, it will destroy the structure of the beads, causing the lamp bead to leak electricity. Or dead lamp. Therefore, this requires the factory to use the dust -free workshop. When taking the chip, we should bring anti -static gloves. The operator does not allow makeup operations, and the hair should be used up during operations. 6. There is no welding of the lamp welding line to cause the lamp beads leakage. For example, the wire is welded, the virtual welding, and the welding line is not properly set.

What is an LED chip? What are its characteristics? The LED chip manufacturing is mainly to create an effective and reliable low Ohm contact electrode, and can meet the smaller voltage drops between accessible materials and provide the pads of welding lines. At the same time. Vacuum steam plating methods are generally used for cross -membrane process. 4Pa is high and vacuum. Under high vacuum, use resistor heating or electronic beam heating methods to melt the material. Shenzhen LED chip, and under low air pressure, BZX79C18 becomes metal vapor deposits on the surface of the material on the surface of the material. Generally used P -type contact metals including AUZN, AUZN and other alloys. The contact metal on the N side often uses AUGENI alloy. The alloy layer formed after coating also needs to be exposed as much as possible through the optical carvings process, so that the left -left alloy layer can meet the requirements of effective and reliable low ohm contact electrodes and welded pads. After the lithography process is over, it must be passed through the alloyization process, and the alloyization is usually under the protection of H2 or N2. The time and temperature of the alloy is usually determined according to factors such as material characteristics and the form of alloy furnace. Of course, if the electrode process of blue and green and other chips is complicated, it is necessary to increase the growth of passivation film, plasma etching process, etc. LED chip classification——What are the classifications of GB chips and LED chips? GB chip definition and characteristics 1. Definition: Glue bonding chip; this chip belongs to UEC's special i -benefit product. 2. Features: (1) The transparent sapphire base replaces the suction GAAS substrate. Its output power is more than twice the traditional AS (ABSORBable Structure) chip. (2) The chip is glowing on all sides, with excellent Pattern diagram. (3) In terms of brightness, how much LED chip is, its overall brightness has exceeded the level of TS chip (8.6mil). (4) Dual -electrode structure, its high current resistance should be slightly worse than the TS single -electrode chip. LED chip size is divided into small power chips, medium -power chips and high -power chips according to power can be divided into small power chips. According to customer requirements, it can be divided into single -tube level, digital level, dot matrix level, decoration lighting and other categories. As for the specific size of the chip, it depends on the actual production level of different chip manufacturers. There is no specific requirements. As long as the process passes, small chips can increase the output of the unit and reduce the cost. The use current of the chip is actually related to the current density of flowing through the chip. The chip uses small currents small current, the chip ambassador has a large current, and their unit current density is basically similar. Considering that heat dissipation is the main problem under large current, LED chip manufacturers, so its luminous efficiency is lower than small current. On the other hand, due to the increase in area, the body resistance of the chip will decrease, so the positive direction voltage will decrease.

There are many types of LED lamp beads on the market. It is not easy to choose a LED lamp bead that suits you among many products. The LED lamp beads produced have been recognized and praised by many users in the market. It is recognized by the user, which is the 3528LED lamp bead. So what are the features of the durable 3528LED lamp beads? 3528LED lamp beads, the light decay of 3528LED lamp beads. After the LED is working, 20mA will continue to light up normally, and the brightness will gradually increase. It will work about 1500 hours. The brightness will increase by 12%. 25%; 3528LED lamp beads can pass the current of 40mA, normal current is 20mA, and 30mA lighting will not affect light failure; 3528LED lamp beads are high brightness, and bright colors are also very concentrated. The service life is super long and has a ultra -low light decay process.