Why do switching power supplies with the same voltage apply to different devices? What kind of switching power supply should we choose?

The main reason for this depends on the circuit design of the switching power supply and the quality of the electronic components. General ordinary switching power supply is suitable for LED lighting and simple small equipment For precision equipment and instruments, high-quality switching power supplies are required, which also impose higher requirements on technology and materials.

The difference in load capacity of switching power supplies with the same voltage is also one of the criteria for judging the quality of the power supply. The main reason is that the materials of each component of the product are different, the operation of the switching tube is stable and unstable, as well as the switching frequency, efficiency, load regulation rate, voltage Regulation rate, EMI/EMC, heat dissipation, power dynamic response speed, stability and other issues, these differences determine the quality of the switching power supply, and are also the decisive factors for its suitability for different equipment.

Therefore, when choosing which switching power supply to use, you should not only look at the appearance, whether the voltage and power are the same, but also the materials used in the product. Only in this way can you choose the switching power supply that is suitable for your use.