Gechy Electric Co.,Ltd Switching Mode Power Supply is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently.

A: To increase the reliability of the switching mode power supply, 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 switching power supply with 130W of output power or more. By doing this, you can effectively boost the reliability of the switching power supply in your system.

B: We also need to consider about ambient temperature of the switching power supply and whether there is additional device for dissipating the heat.

If the switching power supply 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:

Protection function: Over Voltage Protection (OVP), Over Temperature Protection (OVP), Over Load Protection (OLP), and etc.
Application function: Signaling Function (Power Good, Power Fail), Remote Control, Remote Sensing, and etc.
Special function: Power Factor Correction (PFC), Uninterruptible Power Supply (UPS) function.

D: Make sure that the model qualifies for the safety standards and EMC regulations you need.