What is the key to choosing a LED power supply?

Although the development of LED display screens in various countries has been around for a long time, there is still no unified national standard. When a customer completes a LED display project, he can only judge whether it can be done by experience and appearance. For project acceptance, the technical staff of United Huiye will analyze for you the necessity and key of properly selecting LED power supply? 1. Simple way to identify the quality of the power supply Although the general LED display manufacturers can clearly put forward some regulations on the power supply products, but because there are too many power supply manufacturers, many unknown power supply products are full of them, making it difficult for customers to distinguish the true from the false good or bad. Therefore, some professionals have come up with several suggestions: 1. Look at the appearance and processing technology. A good power supply manufacturer is also very strict with the planing process, because in this way it can ensure the mass consistency of the products.

An irresponsible manufacturer, the appearance, tin surface, and ordering of components will definitely not be good. 2. Full load and high efficiency. The high efficiency of the power supply is the most important index value. A high-efficiency power supply has a high kinetic energy conversion rate, which not only meets the requirements of environmental protection, but also can actually save electricity for customers.

3. The harmonic distortion of the output voltage of the constant current source power supply is large. The size of harmonic distortion has a great impact on the service life of power-consuming equipment, and the lower the harmonic distortion, the better. Fourth, the temperature rise when the power supply is working.

The temperature rise endangers the reliability and service life of the power supply, the lower the temperature rise, the better the temperature rise. In addition, it can also be seen from the high efficiency level that the general high efficiency temperature rise will be small. 2. Common problems in selecting power supply products Due to the characteristics of LED display products, there will generally be a momentary change in current when playing videos or screens, which puts forward strict requirements for LED power supplies.

In addition to the pre-embedded indicators of power capacity, there are many other aspects that need to be paid attention to when selecting power products. First of all, in order to improve the service life of the power supply, it is recommended to use a model with 30% more power rating. For example, if the system requires a 100W power supply, it is recommended to choose a model with a power rating of more than 130W, and so on, which can effectively increase the service life of the power supply.

Secondly, it is necessary to consider the working temperature of the power supply and whether there is an additional auxiliary cooling device. The power supply needs to derate the output when the ambient temperature is too high. Thirdly, select power supplies with various functions according to the application field, such as protection functions: over-voltage protection, over-temperature protection, overload protection, etc.; application functions: data signal function, remote control function, monitoring function, series connection function, etc.; unique functions : Power factor correction (PFC), continuous power (UPS). The above is the necessity of choosing the right LED power supply introduced by the technicians of United Huiye. In the future, LED display screens will continue to develop towards ultra-clear, environmentally friendly, energy-saving, and intelligent, and power supply products will also There will be a lot of new technical improvements.

All in all, the smaller the area, the lighter the weight, the thinner the volume, the higher the performance, and the more prominent the intelligent operation may be the future development trend of LED display power supply. .