A series of reliability tests are required for the power supply from production to putting it into the market. It is generally done in accordance with national basic standards, such as GB2423-2008 series of environmental test methods for electrical and electronic products. Frequently tested items include: high and low temperature, temperature cycle, temperature shock, damp heat, vibration, shock, IP protection level test, etc. Next, let's take a look at some conventional test items together!
Conventional test items for switching power supply:
1. Power factor and efficiency test
2. Average efficiency test
3. Input current test
4. Output overshoot amplitude test
5. Tide test
6. Surge current test
7. Ripple and noise test
8. Voltage adjustment rate test
9. Output transient response test
10. Overcurrent protection test
11. Short circuit protection test
12. Component temperature rise test
13. Current overload change test
14. Input voltage variation test
15. Power switch cycle test
16. Overvoltage protection test
17. Rated voltage output current test
18. Insulation resistance test
19. Insulation withstand voltage test
20. Low temperature storage test
21. Low temperature start test
22. Low temperature operation test
23. Temperature cycle test
24. High temperature operation test
25. High temperature and humidity storage test
26, drop test
27. Thermal shock test
28. Ground impedance test