Key parameters of LED display switching power supply:
Brand: G-energy, Model: N200V5-A
Protection type: short circuit protection load adjustment rate: ±1.5%
Input voltage: AC100-240V 50/60HZ
Output voltage: DC4.2V
Appearance of LED display switching power supply:
Product features of G-energy LED display switching power supply:
The wiring terminals of this LED display switching power supply are silk-screened with positive and negative pole identification letters, so that you can connect the power cord more clearly according to the identification, and the operation is simpler.
The raw material of the transformer uses pure copper coils, so that the output DC voltage is more stable.
This G-energy full-color LED display switching power supply has Chinese technology patents, and the product quality is more guaranteed.
The shell of this LED display switching power supply is made of aluminum, which is more conducive to the heat dissipation of electronic components in the LED display switching power supply.
It greatly improves the service life of the switching power supply and also improves the service life of the full-color LED display.
LED display engineers can accurately connect the AC input power line and DC output power line according to the above power wiring diagram.
If the AC input power line is connected incorrectly, the entire LED display power supply will be short-circuited.
If the DC output power line is connected incorrectly, the DC output will be short-circuited, and then the LED module will be damaged.
Some LED display engineering companies need to fix the LED display switch power supply on the LED box, so we need to know the size of the LED display switch power supply.
According to the above structural dimension diagram, we can accurately make the LED display box.
Regarding the LED display switch power supply, the editor of LEGIDATECH has collected some common questions, hoping to help everyone.
1. What does the nominal voltage and current of the LED display switch power supply mean?
The DC voltage output by the LED display refers to the voltage value without any load and no current output.
Therefore, it can also be considered that this is the upper limit of the output voltage of the switch power supply.
Any power supply has a certain internal resistance. When the power supply outputs current, a voltage drop will be generated inside, and heat will be generated at the same time.
After considering the heat dissipation problem, the usual switching power supply generally limits a maximum output current value.
When the output current value reaches this maximum value, the output voltage is reduced to 95% of the nominal voltage.
2. Can power supplies with the same voltage and different currents be used on the same LED display?
When the LED display is running at high load, the current of the LED display module is relatively large.
Although the LED display has enough current margin when it is designed, it is quite dangerous to use a 200W switching power supply instead of a 300W switching power supply.
So it is best not to use a low-power power supply to replace a high-power switching power supply.
3. What is the function of the black ring on the power cord of the LED display switching power supply?
The black ring is an electromagnetic shielding ring to ensure that the electrical signal of the LED display is not interfered with by the outside world.
LED display switch power supply safety instructions
1. When using the switch power supply, the wiring must be in accordance with the power wiring mark, otherwise it will damage the power supply or electrical equipment
2. The power supply needs to select the wattage based on the actual load. The rated wattage of the power supply should not be less than the wattage of the electrical equipment. It is recommended to reserve 20% margin (which can increase the service life of the power supply)
3. There is a high-voltage part inside the switch power supply. Do not drill holes in the power supply shell or disassemble the shell privately to avoid electric shock accidents
4. The appropriate switch power supply must be selected strictly according to the power supply rated use environment.
LED display production process:
LEGIDATECH‘s switch power supply is produced strictly in accordance with the ISO9001 quality management system.
Related:
An article tells you how to calculate the power supply of LED display
