Gate Drive Transformers
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- čas přidán 3. 07. 2024
- Because someone wanted it, here is an in-depth tutorial on making and testing gate drive transformers. I must say though, I'm not really good at tutorials of any kind but I hope this helps.
Chapters:
00:00 Intro
01:03 Cores
02:08 It's all about inductance
03:12 Measuring inductance at 10 turns
04:32 Overview of the circuit that will be used for testing
05:52 Testing each core as a transformer
10:52 How much inductance I would go with
10:58 Alternate ways to wind the core
12:17 A crazy (but working) way to wind
13:16 My gate drive transformer
14:55 With mosfets connected and how to stop ringing
17:50 My recommended way of connecting mosfets to transformer
19:42 Results
One thing I didnt mention in the "Results" chapter is that in a real application, I would have used beefier resistors and diodes, but this was just for demonstration purposes.
Well I hope this has cleared a lot of things up, I'm gonna go now, so untill next time, goodbye. - Věda a technologie
I dont care if your videos are four million decades long or not. You know so much about all of this electronics wizardry and i am amazed by every single video you put out. Thank you very much!
no one has explain practically everything about gate drive transformer
before this video
Thanks alot sir
I reckon that was one of your better ones Clem.
Well done!
That’s cool, Clem.
Excellent video, Clem!
Wow, great stuff, man.
Brilliant video, Clem, you explain it so well, lots of good info! This kind of stuff is right up my street!
I think I need to get myself a decent oscilloscope and an LCR meter if I want to seriously get into this kind of stuff!
BTW, I have made Slayer Exciters and a Schmitt trigger oscillator-controlled coil, but not worked with GDTs, so this vid was very interesting! 👍
It would be a good investment. Some electronics just can't be done without a scope.
Cool dude Clem you're de cool dude of electronics, thanks for your videos!
I also kind of like when you're grouchy.
Thumbs up!
I'm an old subscriber, I think.
Heey this is such an usefull video. This is full of really usefull insights and your knowledge and experience. I am glad i stayed subscribed to your channel because it is getting even above that great level of the older of your video's! It is totally interesting again ,and you show the usefull insights with clever explaining. Only you should have measured with some capacitive load on the trafos approximately simular to a fets gate 4nF or so. That way you see much more difference between the cores because without any load most trafos can look good enough.
Basically when I tested with the mosfets, that's given me some idea of what I'll have to work with.
Looks like you really know your stuff...Good to see you doing more with tesla coils. I wonder how far you could get one to trasmit and what factors are involved in the distence in terms of the voltage and frequency used.
a great source of ferrite cores (general purpose atleast) are both SMPS' (albeit thats not guaranteed to have a toroidal core) and (broken perhaps) car amplifiers
i also got a bunch out of other random stuff and mainly older computer cables
those oldschool VGA cables with a separate plastic thingy near the connectors always contain one for example, older usbs often also have them and whatnot
for gate driving with BJT's i always use a double push-pull/voltage follower setup (push-pull driving another push-pull, for current gain)
I never thought of using the double push pull setup, but I think I'll stick with using the gate driver ICs.
What's the schematic on the wall with the 16 pin IC and the BC557? It looks interesting.
It's a oscillator using the CD4046 with a BC547 and 557 to buffer it's output, pretty much the exact same circuit I'm using in this video, except I'm using a gate driver chip instead of a couple of transistors.
@@CoolDudeClem Nice. Did you ever do a video on that particular circuit?
👍
You missed nothing sir everything thing about gate drive transformer you explained very well You are so nice person thank you so so so much sir