Switch Mode Power Supplies and Their Magnetics

In today’s day and age the most often used topology for electronic power supplies is that of the Switch Mode Power Supply (SMPS), which is a major user of magnetics. In some applications the & “older type”  linear supplies are still used, but in the early 70’s SMPS came into being spurred by the development of faster switching transistors. This facilitated the use of much smaller magnetic components and greater efficiencies.