How to choose a switching power supply
Selecting the right switching power supply requires consideration of a number of factors such as load requirements, input and output parameters and operating environment.
Key factors for selecting switching power supply
1.Define the requirements: First of all, define the usage scenario and load requirements, including the required voltage and current. Make sure the rated current of the switching power supply is greater than the maximum current of the load. For example, if the load power is 80W, it is recommended to choose a switching power supply with a power of 100W or more to ensure stable operation.
2.Input and output type: Determine the input and output type of the switching power supply. Common input voltage specifications include 110V, 220V, and universal input voltage (AC: 85V-264V). The output voltage and current must match the load.
3.Power Selection: It is recommended that the switching power supply operates in the 50%-80% load range to improve system reliability. For example, if the load power is 20W, it is recommended to select a switching power supply with an output power of 25W-40W.
4.Ambient temperature: Consider the operating ambient temperature of the switching power supply, too high ambient temperature may affect the performance of the power supply, need to refer to the ambient temperature on the output power derating curve.
5.Functional requirements: Select the functional type of the switching power supply according to the actual requirements, such as voltage stabilised switching power supply, adjustable switching power supply and so on. Different types of power supplies have different characteristics in output voltage and current regulation.
6.Protection function: Select the switching power supply with functions such as over-voltage protection, over-temperature protection and over-load protection to improve the safety and reliability of the system.
Conclusion
When choosing a switching power supply, comprehensive consideration of the above factors can help you find the most suitable power solution to ensure the normal operation and safety of your equipment. It is recommended to consult Steedcharge's customer service staff for more detailed information and advice before purchase.
E-mail: jackychen@steed-components.com
