Notes on choosing a switching mode power supply(SMPS)?
Publish Time: 2016-09-26 Visit: 3182
a. To increase the reliability of the switching mode power supply(SMPS), we suggest users choose a unit that has a rating of 30% more power than actual need. For example, if the system needs a 100W source, we suggest that users choose a switch power supply with 130W of output power or more. By doing this, you can effectively boost the reliability of the S.P.S. in your system.
b. We also need to consider about ambient temperature of the SMPS and whether there is additional device for dissipating the heat. If the SMPS is working in a high temperature environment, we need to make some derating to the output power. The derating curve of "ambient temperature" versus "output power" can be found on our spec sheets.
c. Choosing functions based on your application:
1. Protection function: Over Voltage Protection (OVP), Over Temperature Protection (OVP), Over Load Protection (OLP), and etc.
2. Special function: Power Factor Correction (PFC).
