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What is the reason for the damage of the power adapter?

source:power adapter     Popular:adapter     release time:2021-08-19 09:37:51     Article author:sznbone    

  The power adapter will inevitably be damaged during use, but we need to understand why the power adapter is damaged? Only in this way can we have a better choice. Let's follow the power adapter manufacturers to learn about it!

What is the reason for the damage of the power adapter?(图1)

  1. Insurance damage:

  Insurance damage is mainly to check the rectifier bridge, diode, etc., and it may also be caused by the influence of the anti-interference circuit.

  2. Line failure:

  The line fault is well understood, that is, the charger wire may be out of power or damaged. This replacement wire can basically solve this problem.

  3. The output voltage is too high:

  The problem of excessively high output voltage will occur, which generally comes from the voltage stabilization sampling and voltage stabilization control circuit.

  Fourth, the output voltage is too low:

  The switching power supply load is short-circuited, the output voltage end filter capacitor or rectifier diode fails, the performance of the switch tube is degraded, the transformer is bad, and the filter capacitor is bad.


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