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How to determine whether a switching power supply is qualified?

Article Source：Kinri Energy | Author：Kinri Energy | Issuing Time：2024.05.07
In the era of rapid development of modern technology, switching power supplies are ubiquitous and serve as the "heart" of numerous electronic devices. So, how do we determine whether a switching power supply is qualified? This is a very crucial issue. Follow me, decrypt new knowledge today!


500W Single Output Switching Power Supply


1. Appearance inspection

Firstly, we need to conduct a visual inspection. A qualified switching power supply should have an intact appearance without any damage or deformation. At the same time, each interface should also be firm and reliable, with no signs of looseness.

2. Performance testing

Secondly, electrical performance testing is an essential step. We need to measure the accuracy and stability of the output voltage to ensure that it fluctuates within the specified range, and the ripple size should be controlled within a reasonable range. This is like the pulse of a power source, it must be stable and powerful.

3. Load testing

Furthermore, load capacity testing is also important. We need to see the performance of the power supply under different load conditions, whether it can stably output electrical energy and meet the needs of the equipment.

4. Performance testing

Security performance testing cannot be ignored. The safety indicators such as insulation resistance and leakage current must comply with relevant standards to ensure the safety of users.

5. Adaptability testing

In addition, environmental adaptability testing is also crucial. The power supply should be able to operate normally under different environmental conditions such as temperature and humidity, without being affected by external factors.

6. Aging test

Finally, aging testing is also an important means of verifying whether the power supply is qualified. Through long-term operation, we can observe whether there will be a significant decrease in power supply performance.

In short, determining whether a switching power supply is qualified requires comprehensive consideration of multiple factors. Only power supplies that have undergone rigorous testing and inspection can be used with confidence. I hope this article can help everyone better understand how to determine whether a switching power supply is qualified, so that our electronic devices can operate more stably and reliably.
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