Here is why Gate-Drive Transformers are sometimes essential! | MOSFET Driver Part 2 (Potential-free)

Würth Elektronik products, which were used in the video:

In this video I will conclude the MOSFET Driver video series by having a closer look at Gate-Drive Transformers. As a practical example I will be using a Tesla Coil driver circuit that uses a Gate-Drive Transformer to control its MOSFETs. We will be finding out how the transformer works, how to use it in a circuit, how to create a DIY version and why using a commercial solution often makes more sense. Let's get started!

Websites which were shown (used) during the video:

Thanks to the Würth Elektronik eiSos Group for supporting this video.

Music:
2011 Lookalike by Bartlebeats

0:00 Presenting my new Tesla Coil
1:30 Why does it perform better than my old one?
2:42 Intro
3:03 Overview of what a Gate-Drive Transformer does
4:36 How does the practical Transformer work?
6:13 Having a look at the Waveforms
6:48 Complementary components for the Transformer
7:36 Creating a DIY Gate-Drive Transformer
8:03 Testing the DIY version
9:03 The problem with designing a DIY version
10:16 Getting a commercial Gate-Drive Transformer
11:05 Testing the commercial solution
11:30 Verdict

[Asu]

The transition to the sponsorship was so smooth, I didn't realize that I ordered some gate drive transformers from Würth Elektronik and now, they just arrived at my front door.

[anuragdeshkar]

Man your video production quality is best and also technical knowlegde!!

[Bhavesh_g]

It feels so good whenever I see that notification from great scott

Really appreciate your work

[Av-ksuc]

Your videos are awesome! You inspired me, with your LED cubes videos 6 years ago to start learning about electronics, and now, I am 3 years into my EE degree and I love every bit of it! Keep up the great work man, and stay safe!

[rolandasa.]

Thanks for the video! Gate drive tranformers were always a grey area to me, but now with the knowledge you provided I can make projects I never imagined I could build.

[supreethathreyas]

1:24

greatScott : decent arcs

electroboom : !@#$%

[micaiaskauss]

An audio tip for you: To reduce the breathing sound between your sentences, use a noise gate (or expander) before your compressor.
Your videos are awesome, keep it up.

[Buzzhumma]

I always know i am going to progress a lot in electronics when the Great Scott notifications come up . You are like purity of knowledge and a great teacher . Thankyou !👍🏻🙏

[andrewkay]

As always a totally engrossing & educational video. The schematic drawings & accompanying explanations are the best on YouTube

[darekmario]

That was a quite helpful video that simplifies this topic. I've always been "scared" of such GDT Circuits. You motivate me to try and practice such solutions! Bleib gesund!

[adarsharao]

Thanks for the tutorial... it was really useful.. although I studied these things in college, my teacher hardly had any hands-on experience, he made it so boring that I never apricated power electronics... now it looks a lot interesting.

[reeffisher]

Nice video, but note...Galvanic isolation does not = safe. Many gate drive transformers only provide functional isolation which is not suitable when "safety isolation" from AC mains is required. In most cases any user accessible downstream circuits which have a working voltage upstream greater than 60VDC or 42.5Vac should be considered "safety isolation" required. For reference these are the limits for UL Class 2 which is good to follow if no other information is available. In that case you would search for a commercial gate drive transformer which has at least basic isolation, but ideally reinforced (double) isolation. There is also the matter of creepage and clearance, but that's for a different video. :-)

[DrunkenSwimmer]

As a self taught electronics engineer (embedded systems) this answered questions that I've wondered about for literal years. Thank you very much.

[electrohardik]

Wow, really great I think when I will grow up. I shouldn't go to any University/college for studying electronics as, I have learnt almost everything from you., I think I am your youngest viewer though, support from India

[kv]

What wasn't obvious why there wasn't as much of a saturation problem with the commercial GDT is that, it must use more turns with a thinner wire, and most importantly, theres a gap spacer in its core, which the toroid transformer clearly lacks. A submillimeter gap in the core prevents saturation, and in switch mode transformers (inverter PSU's, flybacks, electronic CFL / fluoro ballasts etc.) it helps the magnetic field to collapse as quickly as it can, releasing energy stored in the core.

Very well made video, Thank You! Great channel! 👍

[Stoneman]

Looking forward to going whole hog on my own SSTC as I move up from Slayer Exciter variants to more complex systems. Your tutorials and how-to videos are golden for this. Many thanks from Australia! :D

[GnuReligion]

A Dixon Multiplier can also be employed to drive/store a charge of Source + 12V, then drained to the gate through an optocoupler.

[warrenking]

Very nice to see a left handed electronic engineer( like me ) who can draw such great schematics!

[Dudong]

I'm also your electrifying fan, keep it up

[charlesdickens]

and in 2¼ minutes of video I've heard you pronounce the word 'series' as 'serious' . I was also making this mistake when I was eight years of age. Actually your English is very good . Thanks for your work .