SHENZHEN DHX TECHNOLOGY LIMITED

YOUYI YY-D-300-5V-K

Additional information

Unite price:

All of our company’s YOUYI POWR SUPPLY are products of YOUYI company. We are just their large agent. Our company  provides 7*24 hours after-sales services 

Built-in active PFC function.

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By using the low resistance cool mosfets, it can withstand high voltage pressue and has the characteristics of low temperature, secellent switching performace.

Built-in low vf value mosfets instead of shottky diodes, the power supply can increase the efficiency dramaticaly, reduce the cosume power and heat.

Provide the function of over voltage protection, over current protection, over power protection and short circuit protection. The power supply will stop working immediatelly when the protection have been triggured.

 

Production Process of LED Modules

Step 1

Put the circuit board in the fixture and then place it under a gravity tool to flatten it to the same level.

Step 2

Use a tin brushing machine to evenly brush solder paste on the IC or lamp positions.

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Step 3

To ensure quality assurance, use testing machines to check if the solder injection points on the circuit board have been coated with solder paste.

Step 4

high-speed SMT machine can produce up to 1000 LED modules per day, ensuring timely delivery for our customers.

Step 5

Use reflow soldering to fix the leds, ICs, capacitors and resistors on the circuit board.

Step 6

To ensure quality assurance,after fixing all components to circuit board, Will manually test the performance of LED modules.

Step 7

Automatic Screw Machine: Use the screw machine to fix the circuit board with the bottom shell.

Step 8

Automatic glue machine: Using an automatic glue machine to glue outdoor LED screen modules to achieve IP65 waterproof level.

Step 9

The third door to quality assurance:Check the sealing condition of each module to ensure 100% waterproofing of the product.

Step 10

The fourth step in quality assurance is to manually test the performance of the finished LED screen module.

Step 11

Aging test: The finished led screen module undergoes a 48 hours aging test to ensure product quality.

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