How to choose power supply for led display screen
As an integral part of the LED display, the LED switching power supply is mainly used to provide the necessary working current for the LED to ensure the normal display of the screen. The power supply is a frequently used part in the LED display, and its quality directly affects the light decay of the LED display and is related to the life of the LED display. Therefore, the power supply also has the title of “heart” of the LED display, which shows its importance. my country’s LED display industry has been developed for more than 30 years, and the power supply required for LED displays has followed suit for more than 30 years. After years of development, its technology has become relatively mature, and it occupies a leading share in the global market. As a small subdivision field in the field of power supply, LED display power supply has been valued by many power supply companies with the development and growth of the LED display industry.On the other hand, led display screen It also brings tangible benefits to everyone and feels useful. It is a model of the industry. https://www.atop-led.com/
Different LED display application scenarios have different power requirements. For example, transparent screen products require the power supply to be made into a slender strip. The narrower the power supply is, the better the light transmission of the screen can be made, and the whole screen will be more beautiful. However, the maintenance cost of outdoor LED display products is high, requiring higher power supply reliability and longer life. As for the power supply installed inside the die-casting aluminum box, high efficiency and high power density are required, so the requirements for MOS, electrolytic capacitors and other components in the power supply are relatively high. Following the small pitch, the new
display technology of Mini/Micro LED is becoming more and more mature, which puts forward higher requirements for the reliability of LED display power supply. In order to cope with new changes in the market, developing new power supply products has become a new goal of various power supply companies.
MW power supply for led screen
What are the characteristics of high-quality LED display power supply?
1) High reliability: Many LED display screens are installed at high altitudes, the power supply maintenance is inconvenient, and the maintenance cost is also high;
2) High efficiency: LED display is an energy-saving product, and the efficiency of the display power supply should be high. The efficiency of the power supply is high, its power consumption is small, the calorific value is small, and the temperature is reduced;
3) High power factor: The power factor is the requirement of the grid for the load. Although the low power factor of a single consumer with low power has little impact on the power grid, if the load of the same type is too concentrated, it will cause serious pollution to the power grid;
4) Surge protection: The ability of LED display to resist surge is relatively poor, especially the ability to resist reverse voltage. It is also very important to strengthen the protection in this respect. Some LED displays are installed outdoors, such as outdoor advertisements installed on high-rises. Due to the load of the grid and the induction of lightning strikes, various surges will invade from the grid system, and some surges will cause damage to the LED display. Therefore, the LED display power supply must have the ability to suppress the intrusion of the surge and protect the LED display from damage;
5) Protection function: In addition to the conventional protection function of the LED display power supply, it is recommended to increase the temperature negative feedback in the power output to prevent the temperature from being too high; it must meet the requirements of safety regulations and electromagnetic compatibility;
6) Good temperature characteristics (high): high power density and the influence of environmental temperature in winter and summer cannot make the LED display power supply work abnormally;
7) Good (high) humidity characteristics: it must withstand the test of high humidity weather such as sauna days;
8) Good (high) anti-interference performance: power grid fluctuations such as lightning strikes, overvoltage and overcurrent cannot damage the LED display power supply.