Every Component of a Switch Mode Power Supply Explained

Video Description

In this video we go through every component of a modern switch mode power supply taking a look at their function. The first half of the video is dedicated to understanding how inductors are used in these circuits, as these are the beating hearts of power supplies. The second half of the video runs through each component, with increasing complexity, highlighting their position in both the schematic and the physical circuit before delving into their purpose. What happens when: 0:00 Introduction 0:31 Evolution of switch mode power supplies (1980-2022) 1:47 Using inductors to store and release energy 3:40 Using inductors in a switch mode power supply 9:47 How inductors keep shrinking 11:35 Introduction to circuit analysis 12:00 Simplest possible SMPS 14:31 Output indicator LED 14:49 Additional output filtering 15:19 Output capacitor bleeder resistors 16:01 MOSFET source current shunt resistors 16:37 Input filtering 17:52 Input protection 19:54 Class-Y capacitors 20:35 Snubbers 21:47 Additional components (controller) 22:06 Conclusion 22:40 Outro Follow me on Instagram to stay up to date on all the latest stuff: https://www.instagram.com/electrarc240/ Join the ElectrArc240+ discord server to hang out with likeminded folk: https://discord.gg/un9c5VHX7N Donate through PayPal to support more cool projects: https://www.paypal.com/paypalme/electrarc240