LED lamp beads Common forms of connection 1. Overall connection form (1) Simple series forms Generally and simple series connection forms of LED1 LEDN are connected at the beginning and tail, and the current flowing during LED is equal. For LEDs of the same-specifications and batches, although the voltage on a single LED may have a small difference, because the LED is a current device, it can ensure that their luminous intensity is consistent, trapped this, simple series forms of formation forms LED has the characteristics of simple circuit and convenient connection. However, due to the use of series, when one of the LEDs occurs, the entire LED lights will be extinguished, which will affect the reliability of use. (2) The series forms of the two -pole diode with the combination of Qina diode are connected to an improved series connection form of a Qiner diode in parallel. In this connection method, the breakdown voltage of each Zina diode is higher than the working voltage of the LED. When working normally, because the Qina diode VD1 VDN, the current is mainly flowing through the LED1 LEDN. When the damaged LED in the LED string is caused In addition to the fault LED, other LEDs still have currents through the current and glow. This connection method is greatly improved in terms of reliability comparison in terms of reliability. Overall parallel form (1) Simple parallel form Simple and connected LED1 LEDN head and tail parallel, each LED is equal to each LED. It can be seen from the characteristics of LED. It belongs to a current device, and the slight changes in the voltage added to the LED will cause a large change in the current. In addition, due to the limitations of LED manufacturing technology, even the same batch of LEDs, the difference in performance is inherent, so when LED1 LEDN works, whoever spends each LED is not equal. It can be seen that the uneven distribution of each LED current may cause the LED life of the current to be too large, and even burn out. Although this connection method is relatively simple. But the reliability is not high, especially for applications in the case of large number of LEDs. (2) The parallel form of independent matching is aimed at the reliability of simple parallelism. The parallel form of independent matching is a good way. Each LED in this way has currently adjustable current (the drive Voutput terminal is L1 Ln, respectively), and ensure that the current flowing through each LED is within the range of its requirements, with good driving effects, a single LED, a single LED Protect complete, does not affect other LED work when faults, and can match the characteristics of LEDs with large differences. The main problem of existence is: the composition of the entire driver circuit is relatively complicated, the cost of the device is high, and the volume of occupation is too much. It is not suitable for the large number of LED circuits. Mixed -connected forms are proposed by integrating the respective advantages of series and parallel forms. The main forms are the following two. (1) When the mixed formation forms are first, the number of LED applications is large, and the simple series or parallel connection is unrealistic. The former requires the former to request a high voltage of the drive (N times of a single LED voltage VF). To fall the drive with a large current (N times of a single LED current IF). This brings difficulties to the design and manufacturing of the driver, and also involves the structural problems and overall efficiency of the drive circuit. The working voltage of the number of LEDs in series and the working voltage of a single LED VF determines the output voltage of the driving force; The NVF value determines the output power of the drive. Therefore, the mixing method after mixing is mainly to ensure that there is a certain reliability (the LED fault in each string only affects the normal light of the string), and the matching of the drive circuit ), It improves reliability than simple series forms. The entire circuit has the characteristics of relatively simple structure, convenient connection, and high efficiency. It is suitable for applications with a large number of LEDs. (2) Several LEDs that are mixed with a string of collaboration first and then skewers are first and then stringed. Since LED1-N LEDM-N is first connected to connect, which improves the reliability of each group of LEDs, but this is important. For this reason, you can choose the working voltage and current as much as possible as a parallel group by pairing, or to solve the small current resistance of each LED. The other characteristics and existing problems of this mixed form form are similar to. (3) Cross array forms of cross arrays are mainly to improve the reliability of LED work and reduce the failure rate. The main form of composition is: each series of 3 LEDs as a group, and the VA, VB, and VC output terminals that are connected to the drive output of the drive. When the 3 LEDs of a series are normal, the 3 LEDs are glowing at the same time; once one or two LEDs are invalidated, it can ensure that at least one LED work normally. In this way, it can greatly improve the reliability of each group of LD light, and it can improve the overall reliability of the entire LED glow. 2. Different connections in different connections have their own characteristics, and the requirements for the driver are different, especially when a single LED fails to fail the circuit work, the overall lighting reliability, and ensure that the overall LED can be as much as possible to be as possible as possible. It is particularly important to continue the ability of work and reduce the overall LED's failure efficiency, etc. All in all, LED group applications are an important way for LED actual applications. Different LED connections are essential for large -scale LEDs and design requirements for driving circuits. Therefore, in the combination of actual circuits, the correct selection of the compatible LED connection method is of positive significance for improving the effect of its luminous effect, the reliability of the work, the convenience of the driver design and manufacturing, and the efficiency of the entire circuit. LED luminous module failure and solution phenomenon: all LED flashing; Question: poor contact; solution: re -fixation or insertion; phenomenon: LED dim; Question: 1. LED polarity is reversed; 2. LED is too long to be too long ; 3. The switching power supply is inconsistent with the LED voltage mark; Light; Question: 1. Whether the direction of the insertion is correct; 2. Whether the power output wiring is correct; 3. The power cord plugs and reverse; the solution: 1. Disassemble , Black wires are connected to negative poles; 3. Find out part of the inverse lines; re -connect; phenomenon: All LEDs are not bright; Question: 1. There is no voltage output of the switching power supply; 2. Whether the output wiring of the switching power supply is correct; solution: 1 , Test -to -power access switching power input terminal; 2. Power wiring positive and negative poles correct;

Author: Tianhui-Air Disinfection Author: Tianhui-UV Led manufacturers Author: Tianhui-UV water disinfection Author: Tianhui-UV LED Solution Author: Tianhui-UV Led diode Author: Tianhui-UV Led diodes manufacturers Author: Tianhui-UV Led module Author: Tianhui-UV LED Printing System Author: Tianhui-UV LED mosquito trap

ETL authentication AC light source module is optical design, heat dissipation design, shape, size design, and interface standardization design that can be performed according to any form of application. The above design is used to achieve the standardization combination of different application places. The function of the replaceable module, to a certain extent, realize the reduction of user costs. ETL authentication AC light source module installation step: 1. The number of light source modules budget adopts an equal range discharge, which simulates the distribution of light source modules on the computer. The module spacing visual brightness needs to be between 3-150px. The thickness of the word can be selected between 5-325px. 2. Calculate the power power, the number of LED light source modules of the design distribution scheme the power of the single light source module = total power consumption power. It is recommended that the power supply should be available to have a balance, and use the rated power of 80%to use. 3. Install LED light source module A: Clean installation surface B: Use double -sided non -dry glue to stick to the bottom of the module. C: Low uniformly, connect the connection. D: Install the slot panel and measure the effect. E: Final finished product ETL authentication AC light source module Note: 1. The polarity of the light source module: the red line connects the power supply, the white line connects the power supply negative pole. 2. The vertical height of the acrylic light -transmitting cover is greater than 5 cm from the light source module, less than 13 cm to avoid the phenomenon of light spots or darkness on the surface of the cover; It has a great impact on uniformity, you need to pay attention to the choice. 3. Work voltage: Note that the voltage of the light source module is consistent with the voltage of the switching power supply. 4. Sticker firmly: Make sure that the light source module pasted in the light box is firm and reliable, and fix it with screws if necessary. 5. The length of the wire: the power line length is as short as possible (it is recommended not to exceed 3 meters), greater than or equal to 18AWG#, and more than 3 meters should be appropriately increased

Author: Tianhui-Air Disinfection Author: Tianhui-UV Led manufacturers Author: Tianhui-UV water disinfection Author: Tianhui-UV LED Solution Author: Tianhui-UV Led diode Author: Tianhui-UV Led diodes manufacturers Author: Tianhui-UV Led module Author: Tianhui-UV LED Printing System Author: Tianhui-UV LED mosquito trap

The rise of the domestic LED lighting market first starts from the field of LED light source module brand. From the "Ten Ten Citys" to "Millions of Fifty Cities", LED outdoor lighting has been encouraged and developed rapidly by policies. In order to better conform to market development, LED companies have strengthened the research and development of technology. From a single imitation to the current LED street lamp module of the Lighting Engine, the rapid progress of technological progress has greatly promoted the development of LED street lights. The so -called modularization refers to the composite production modules such as light sources, heat dissipation components, and driving power supplies for mass production, and manufacture standardized LED lighting products in accordance with fixed parameters and molds. At present, there are not a few companies that make LED light source modules. In the light source module solution with self -heat dissipation, most of them are directly exposed to the sunshine of the lens made by high molecular materials. At the same time, the module -connected wires are also directly exposed to the sun. UV rays will have a significant impact on the performance of these materials on these materials. A standardized good light engine can solve the problems of many high -power LED lighting fields such as heat dissipation, waterproof, series of waterproof, serialization, maintenance, and universality. After the reliability is guaranteed, it should be more concerned about the uniqueness of the module on the LED street lights and the superior performance of the traditional street light lighting. There are not many street lights now. I believe few people will impress the street lights on a certain road, because it looks almost the same. As the "high -precision" of electronic products, LEDs are completely different, so that each road has the characteristics of each road, so that people can make people shine. In fact, from the design of the LED light source module brand, whether it is the modularization of the light source or the modularity of the light engine, it provides a broad design space for the design. In the future, according to the different application requirements, you can choose different modules to choose different modules in different modules in the future. Design. From this point of view, LED street light companies, including outdoor high -power module manufacturers, still have articles to do. Can't get out of the market to talk about products, nor can it be discussed to talk about the market. Now that we are in the era of LED lighting, what we have to do is to study how to play the advantages of LED light source module brands, and better serve the people's living life.

Author: Tianhui-Air Disinfection Author: Tianhui-UV Led manufacturers Author: Tianhui-UV water disinfection Author: Tianhui-UV LED Solution Author: Tianhui-UV Led diode Author: Tianhui-UV Led diodes manufacturers Author: Tianhui-UV Led module Author: Tianhui-UV LED Printing System Author: Tianhui-UV LED mosquito trap

The phenomenon of building LED lighting plans in the overall consideration is that the following points must be confirmed first: 1 The direction of the viewing building may be visible from different directions and angles, but it is generally before the planned start, let's first first, let's first let To choose a certain direction to be used as the primary viewing direction. 2 interval between ordinary people may watch interval. The distance of the interval will affect the clarity of the surface survey of the facade, and the choice of bumping of the illumination. 3 The surrounding environment and the bright and dark of the surrounding environment and the scenery will affect the illumination required by the subject. Assuming that the surroundings are dark, the need for a little light is enough to illuminate the subject; if the surroundings are bright, the lights must be strengthened to highlight the subject. In terms of building phenomenon LED lighting planning, it can be roughly divided into the following processes: 4 Choose the expected lighting effect. The building may have different lighting effects, or more uniform, or strong and dark changes; Therefore, the more flat performance method, or the more lively performance method, are selected according to the characteristics of the building itself. 5 Select the suitable light source to select the light source, color rendering, power, service life and other elements. The color of the light color and the outer wall material of the building is appropriately contacted. Generally speaking, the BRICS and yellow -brown stone are more suitable for the use of warm light to shine. 6 Choosing the required illumination of the required degree of illumination mainly depends on the light and darkness of the surrounding environment and the depth of the color of the outer wall material of the building. Generally speaking, the photo of the second facade is half of the main facade, and the light and darkness of the two faces can show the three -dimensional sense of the building. 7 Choose the appropriate lamps, generally speaking, the distribution angle of the square -type lighting light line is large; the angle of the round lamps is small; the wide -angle lamps are more uniform, but it is not suitable for long -range projection; narrow -angle lamps are suitable for doing it for doing it. The projection of a higher interval, but the uniformity is poor when the near interval is used. After the calculation of the number of 8 photos and the number of lamps, the above processes are completed, and the number of lamps is selected according to the illumination of the selected light sources, lamps, and equipment orientation. The appearance of the building uses the projection of lighting at night, and its income and the feeling of the day will have appropriate differences. Therefore, in the LED lighting engineering planning, the effect does not have to be the same role as the day, but it is important to express the characteristics of the building.

Author: Tianhui-Air Disinfection Author: Tianhui-UV Led manufacturers Author: Tianhui-UV water disinfection Author: Tianhui-UV LED Solution Author: Tianhui-UV Led diode Author: Tianhui-UV Led diodes manufacturers Author: Tianhui-UV Led module Author: Tianhui-UV LED Printing System Author: Tianhui-UV LED mosquito trap