LED power supply, as one of the main devices of LED display screens, is playing an important role in LED display screens. Research data shows that over 80% of fault indications are caused by the power supply.
As is well known, LED display screens can be used in two environments: indoor and outdoor. Indoor LED displays may be detected at any time, while outdoor ones are less likely to take emergency measures.
In the past, many LED display screen customers chose products with low output voltage and high current (such as 5V/60A applications) when choosing power supplies.
But with the continuous development and innovation of LED component technology, the efficiency of driving ICs is also constantly improving. In the future, LED display power supply will be shifted to 4.5V/4.2V as the bulk. Therefore, we will plan the new generation of commonly used voltages, such as 2.5V/3.3V/4V, as standard product series and establish standard product inventory, greatly reducing the difficulties of LED display screen customer selection and modification.
With the rise of the rental LED display screen market, rental display screens have been widely used in hotels, exhibition booths, KTV/video conferences and other fields due to their small spacing, light weight, thin structure, and advantages of lifting and quick disassembly/transportation/installation. The specifications of small pitch LED display screens P1.9 and P1.6 have officially become mainstream in the market, P2.5 is gradually becoming normalized, and as the technology of small pitch display screens matures, their application scope will become more extensive.
For customers with small spacing and rental display screens who require less space and volume for power installation, such as the HSP/HSN-200/300 series developed by Mingwei, it can fully meet their design needs for size and height, and quickly become another choice for LED display screen customers on high-quality standard power sources.
In addition, LED display screens often malfunction due to factors such as pollution, looseness, vibration, humidity, and environmental temperature changes in their special application environment and usage process. The power supply is the heart of LED display screens, and display screen customers have increasingly high reliability requirements for the power supply. Due to unpredictable changes in installation environment, it is recommended to choose products with moisture-proof protection as much as possible for LED display screens installed outdoors.
The quality of the product depends on the merchant, and customers can rest assured to choose a good merchant. When choosing a dedicated power supply for LED display screens, it is necessary to choose according to the LED display screen you have configured.
So, how to choose an LED display power supply?
Firstly, we only choose power supplies with good appearance, which means that the array uniformity of the components is excellent.
Secondly, check the efficiency of the power supply. Judging the energy-saving level of a power supply is based on efficiency. When fully loaded as a good power source, it must be above 80%. The higher the efficiency, the less active power input.
Thirdly, the PFC value is also important as an efficiency factor. The PF value of a power supply without PFC function may be less than 0.6. A low PF value will increase reactive power and cause significant power loss.
Fourthly, we need to ensure that the power supply has excellent stability, which will affect the stability and service life of LED displays. It can be represented by ripple and temperature rise. A power supply with good stability must have low ripple and low temperature rise.
