Everything You Need to Know About Soft Switching (Switching Loss, ZVS, ZCS)

As transistors are getting switched at higher and higher frequencies, minimising switching loss is becoming an ever more essential part of power converter design, and there is more to it than you may think! Check out Coilcraft's DC-DC optimiser tool: https://www.coilcraft.com/ What happens when: 0:00 Introduction 0:35 What are switching losses? 0:48 Overlap loss 1:10 Capacitive loss 2:03 Inductive loss 2:37 Reverse recovery 3:35 Switching loss summary 4:22 My boards 4:37 The problem with stored energy losses 5:25 Soft switching 5:35 Zero current turn on 6:12 Zero voltage turn off 6:49 Still haven't sorted stored energy losses... 7:09 Zero voltage turn on (ZVS) 8:12 Coilcraft 8:57 More ZVS 10:27 ZVS in GaN 11:51 Synchronous ZVS 12:42 Zero current turn off (ZCS) 13:10 Fixed ratio LLC 13:46 Auxiliary resonant circuits 14:00 Why soft switching improves EMI 14:20 Soft switching summary 15:02 Conclusion 15:12 Outro Support the channel & get access to extra content:   / electrarc240   Looking to buy or rent lab equipment in the UK? Check out https://telonic.co.uk/ Join the ElectrArc240+ discord server to hang out with likeminded folk:   / discord   Follow me on Instagram to stay up to date on all the latest stuff:   / electrarc240