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First, look at the appearance of the process to select the LED display power supply. A good power supply manufacturer is also very strict on the workmanship process, because it can guarantee the product's batch consistency. An irresponsible manufacturer, the appearance of the power supply produced, the tin surface, and the orderliness of the components are absolutely not good.
Second, select the LED display power supply from full load efficiency. The efficiency of the power supply is the most important indicator, and the high-efficiency power supply has a high energy conversion rate. This will not only meet the requirements of energy conservation and environmental protection, but also provide real savings for users.
Third, the output voltage ripple of the constant voltage power supply is large. The size of the ripple has a very big influence on the life of the electrical equipment. The smaller the ripple, the better.
Fourth, observe the temperature rise during power supply operation to select the LED display power supply. Temperature rise affects the stability and life of the power supply. The lower the temperature rise, the better the temperature rise. In addition, from the aspect of efficiency, it can be seen that the general high-temperature efficiency will be small.
Fifth, according to the application field to select the various functions of the power supply, such as protection functions: over-voltage protection, over temperature protection, overload protection, etc.; application functions: signal function, remote control function, telemetry function, parallel function, etc.; special function: work Due to correction (PFC), uninterrupted power (UPS).
Sixth, in order to increase the life of the power supply, it is recommended to use more than 30% of the output power rated models. For example, if the system requires a 100W power supply, it is recommended to select models with output power greater than 130W, and so on to effectively improve the life of the power supply.
Seventh, due to the properties of LED display products, when the video or the screen is played, usually a momentary change of current occurs, which imposes a stricter requirement on the LED power supply. Generally, in order to ensure the normal broadcast of the display screen, it is necessary to reserve a certain margin for the power supply product. In general terms, the more spares are reserved, the more stable the performance of the power supply products is, and the longer the service life is. However, this increases the cost of the power supply product. Too much reserve of spare power is also prone to waste. At present, the industry's LED display power supply is generally reserved for 20% - 30% margin.
How can we choose the power of LED display
With the use of LED full-color display more and more into our lives, but when we select LED display manufacturers, we often ignore the choice of power LED display. So today, we have done some simple analysis on the issue of choosing the power supply for LED display production.