This video provides a short technical introduction to switching mode power supplies and explains how they are used to convert alternating current into direct current.
Learn more about power electronics testing: http://rsna.us/6053iCQpH
Timeline:
00:00 Introduction
00:15 Suggested viewing
00:34 Review of linear power supply
01:07 Addressing the limitations of linear power supplies
02:09 About switching mode power supplies (SMPS)
03:05 Basic AC-DC SMPS block diagram
04:00 AC rectifier and filter
04:26 Switcher (chopper)
05:28 Transformer
06:08 Pulsed DC rectified and filter
06:38 Aside: DC-DC conversion
07:43 Voltage regulator / controller
08:42 Advantages and disadvantages of SMPS
09:50 Summary