The LED display power supply is an important part of the power supply system. Choosing a qualified and reliable power supply can significantly improve the energy saving effect and service life of the LED display. So how to correctly identify and choose a qualified LED display What about the power supply?
1. Look at the appearance process to choose the LED display power supply
A good power supply manufacturer is also very strict with its workmanship, because only in this way can the batch consistency of products be guaranteed. An irresponsible manufacturer, the appearance, tin surface, and orderly arrangement of components of the power supply produced will definitely not be good.
2. Choose the LED display power supply from the full load efficiency
The efficiency of the power supply is the most important indicator. A high-efficiency power supply has a high energy conversion rate, which not only meets the requirements of energy conservation and environmental protection, but also can actually save electricity and money for users.
3. Choose a power supply whose lifespan matches that of the LED chip
The life of the driving power supply should match the life of the LED display chip as much as possible.
4. Observe the temperature rise when the power supply is working to choose the LED display power supply
Temperature rise affects the stability and life of the power supply, the lower the temperature rise, the better. In addition, it can also be seen from the efficiency aspect that the general efficiency high temperature rise will be small.
5. Instantaneous current changes when playing on a large screen
Due to the properties of LED display products, instantaneously changing currents are usually generated when playing videos or pictures, which puts forward strict requirements for LED power supplies. Usually, in order to ensure the normal broadcasting of the display screen, it is necessary to reserve a certain margin for the power supply product. Generally speaking, the more margin reserved, the more stable the performance of the power supply product and the longer the service life. However, this will increase the cost of the power supply product, and too much margin reserved will easily cause waste. At present, the LED display power supply in the industry generally reserves a margin of 20%–30%.
6. Select the power supply for each function according to the application field.
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 functions: power factor correction (PFC), uninterruptible power supply (UPS).