Home > FAQ > About Products >

Notes on choosing a switching power supply?

Notes on choosing a switching power supply?
Update Time:2014-08-26
a: To increase the reliability of the S.P.S., 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 S.P.S. 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 S.P.S. and whether there is additional device for dissipating the heat. If the S.P.S. 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. Application function: Signaling Function (Power Good, Power Fail), Remote Control, Remote Sensing, and etc. 
     3. 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.
Get in Touch

Quick Service & Solution For Full Meanwell Products

If you have any questions about purchasing Meanwell products, any doubts in product selection, or any special needs for Meanwell products, welcome contact us as follows:

Stay in touch
Please send your message to us

Agree to use terms of service