Simple IGBT Drivers for Beginners! (Subtitles)

Рет қаралды 8,246

Күн бұрын

Subscribe & bell for more content like this! Not easy being deaf, I did have to re-do a lot of the voiceovers...
If you want a simple IGBT driver that can handle a LOT of power, has variable frequency from, say, 50Hz to 20kHz+, and variable duty cycle (good for limiting current rather than ballasting)? Then this video is for you! Here, I explain how Half and Full bridge works, how SG3525 and gate drive circuits work, how to use them, how to keep your IGBTs from dying, how to build IGBT drivers, and more.
Questions? Please ask in comments or discord server.
Some misinformation/incorrect things I said? Please correct me in comments or discord.
JOIN DISCORD: / discord
Gate Drive Waveforms: www.richieburnett.co.uk/temp/g...
NOTE!!! One of the SG3525 schematic in the video, there was an error. Just noticed now.
4:13, bottom of the signal wire was supposed to be connected to OUTA. Not ground. Oops.
SG3525 Driver Full Schematic: media.discordapp.net/attachme...
Things I forgot to add:
- Make sure you get the right SG3525 driver. I'm using SG3525AN.
- I would recommend watching subcooledheatpump's videos on IGBTs. He explains a lot about IGBTs very well.
- ACNW3190s are simply used to drive large IGBT gates. There are better ways, of course.
- 3190s are rated for 5A sink current. As you go up in frequency, it heats up more. This can be fixed by decreasing peak current, or simply upgrade the gate driving.
- The larger the IGBTs (or transistors) (ratings, and size wise), the more peak current of gates you may need to switch at higher frequencies.
- My gates waveform is alright, not a big deal, since I usually drive at lower frequencies. It turns out, Steve said you can use an "asymmetrical gate drive" (look it up, add "gate resistors circuit" to that) to decrease the fall times. Backwards diode with resistor in series, in parallel with the gate resistor.
- The film capacitors in parallel with the DC capacitors, I used 0.3 or 0.33uF 1200V DC.
- C is Collector, positive goes to those. E is Emitter, negative (DC input and opto negative) goes to those. G is Gate, opto output goes to that.
- At higher frequencies, you will get what's called "skin effect". Look it up. This heats up your wires. So, I made litz wires (those red multiple wires one). For litz wire, each wires have to be insulated or enameled, otherwise what's the point?
- It's recommended that you keep everything nice and tidy, and also busbars/wires shorter, to reduce stray inductance, etc.
Yes, you can increase dead time to avoid cross conduction at higher frequencies.
For 20-25kHz max, with 45 to 50% duty cycle, ACNW3190's are used. Be careful not to short them.
SG3525 is used, very simple and I very much would rather that IC than TL494. Bigger frequency range, easier to make a circuit with, has a range of 100Hz to 400kHz (can go lower than like 50Hz and still be able to adjust duty cycle, unlike my TL494 circuit under like 2kHz). With TL494, I could only have a range of like 5kHz to 20kHz, no matter what values of potentiometers and timing capacitor. With SG3525, oh boy, I can have a range of 200Hz to 40kHz or even higher!
Do not repeat anything I do. I am not responsible for any deaths or injuries.
0:00 Intro (how I got into this)
1:14 Intro 2 (I'll explain everything + driver cost)
1:46 Some knowledge + oscilloscope recommended!
2:02 Starting over on video project
2:27 How half bridge work (Animation)
3:08 How full bridge work (Animation)
3:34 Many different gate driving + oscillators
4:34 SG3525 + gate drive schematic overview
8:22 Gate phasing
8:53 Gate wires twisted and short
9:09 Isolation is very important for gates!
9:49 Grounding your SG3525 driver
10:00 Full schematic (Circuit will work 20kHz+)
10:11 Why IGBTs? Which IGBTs do I use?
10:34 How gates work
10:49 Why gate resistors & how to use
11:24 Rise & fall times (voltage drop & cross conduction)
12:36 How your gates waveform should look like
12:41 Do not plug into same outlet/breaker!
13:45 3 things to keep IGBTs from dying
16:09 Buying the parts you need
20:53 Great deals I found
21:52 Adjusting SG3525 circuit
22:48 Testing gate driving
23:32 Testing IGBT
24:14 Transferring circuit onto perfboards
24:28 Building a full bridge IGBT driver
27:00 Rewinding mains transformer
28:06 Checking the gate phasing
28:13 Actual load testing
#highvoltage #arcs #electricity #electrical #electric #igbt
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Пікірлер: 106

@breezetixhv Ай бұрын

There are multiple things I did forget to add. Read description for more. Timestamps and subtitles included. Thanks a lot for watching! I hope you were able to achieve your dreams of owning a powerful IGBT driver to be able to do anything you want! Use them as a "VFD" for AC motors etc especially! AC is AC. Now, have fun with them! Technically, it took me TWO YEARS to finally make this video. (But actually a month and a half to make this video). It's mostly the voice overs that I had to do.

@user-el4np5xt8c Ай бұрын

Awesome vid, I wish more people made quality electronic content like this! Epic work bro

@breezetixhv Ай бұрын

Thanks

@kaboooom2000uk Ай бұрын

Thanks for the mention my dude :) its really amazing to see your progress and the evolution of the driver. Keep up the good work and best wishes.

@breezetixhv Ай бұрын

Thanks adam

@peterjameson321 Ай бұрын

A brilliant educational video Trent. Thank you for all the hard work that you put into making it.👍

@breezetixhv Ай бұрын

Thanks

@T2D.SteveArcs Ай бұрын

Very good Trent, a lot of good information in there for first time builders 👍😎

@breezetixhv Ай бұрын

thanks appreciate it

@fabriziobrutti1205 Ай бұрын

Nice and thanks! So much effort gave us the perfect tutorial :D

@breezetixhv Ай бұрын

Welcome 🙏

@VariacManiac Ай бұрын

This video was put together really well, I was able to pick up some idea of how these work. Been very lazy to figure these out on my own, this makes it understandable. I bet it took ages to edit, but this was good enough to keep me to the end!

@breezetixhv Ай бұрын

Welcome man. Build one and drive your 60hz transformers with it, id be interested to see it!

@VariacManiac Ай бұрын

@@breezetixhv I'll have to give it a try, may even use it for a solid state coil, will make a great vid!

@breezetixhv Ай бұрын

@VariacManiac you'll need a gdt, sstc are a couple hundred kHz or less depending on how big. If it's a small sstc you'll need smaller igbts for much higher frequencu

@uiohgycgfhgjh Ай бұрын

thanks for making this video among others.

@semspiri789 Ай бұрын

That is awesome, I'm inspired to continue with the hobby, i was not touching it for more than a year now. I want to build some big ass HF arc generator. Thanks a lot. You are a rock star!

@breezetixhv Ай бұрын

Welcome

@Only_Dro23 Ай бұрын

hey man i been around on and off since your hvh cs days, glad to see someone from the hvh scene actually do something with their life

@breezetixhv Ай бұрын

I didnt really hvh all the time. glad I quit that community

@susamongus-dx2ht Ай бұрын

Finally the vid is here really nice bro

@martinpetkov4580 Ай бұрын

Hey bro - take care ! U are soo usefull

@simo9445tsns Ай бұрын

great video, thank you

@ArcAngelTeslaCoil Ай бұрын

Great video I need to do this ⚡️⚡️ Great work👍👍

@breezetixhv Ай бұрын

thanks

@ArcAngelTeslaCoil Ай бұрын

@@breezetixhv I was wondering why you used buck for each optic coupler?

@breezetixhv Ай бұрын

@@ArcAngelTeslaCoil wdym?

@ArcAngelTeslaCoil Ай бұрын

@@breezetixhvdo you know the part number or were you got the wide body 3190 opto coupler sockets ? Thanks

@Alexelectricalengineering Ай бұрын

That was awesome, I see a lot of work went it to making it definitely thumbs up 👍👍👍👍👍 A few years ago I built a SLR full bridge converter with TO-247 IGBTs, works to this day! One day I want to build a bigger driver!!!!!

@Traper_T Ай бұрын

@Alexelectricalengineering Good to see you ther

@Alexelectricalengineering Ай бұрын

@@Traper_T How are you doing, I didn't hear from you for some while?

@shawncalderon4950 Ай бұрын

Great job! You are a fantastic teacher. Is there a place where I can buy this circuit already built?

@breezetixhv Ай бұрын

No, not really. Just build your own tbh it's not difficult or complicated. That way you actually learn everything about it and what you need to do etc

@shawncalderon4950 Ай бұрын

@@breezetixhv I will watch your video 50 times and not be the gangsta you are with high voltage. It took you years to get this good. Keep up the excellent work! Bummer, I can't buy something close to your fantastic circuit.

@blackIce504 Ай бұрын

nice work mate.

@breezetixhv Ай бұрын

Thanks 👍

@dinkc64 Ай бұрын

So badass, thank you. By the way, coolest voice ever. Legendary, no shitski's.

@artbeautyandmadness3091 Ай бұрын

Looks like you rectified the AC to DC using diodes and huge capacitors, I would imagine your neighbors' AC waveforms, All flattened near the peaks, due to your capacitors only drawing (astonishingly high) current near the AC peaks. Great time to learn about Active Power Factor correction.

@breezetixhv Ай бұрын

Ehh. I use a variac to control voltage, so not really. It still draws quite a bit of current, I can feel/hear my smaller variac whining as I increase the voltage a little quicker. It stops when I stop.

@adammajerczak2493 Ай бұрын

yes thank you for this video

@breezetixhv Ай бұрын

@Sir-Dexter Ай бұрын

nice work och ....

@jeffbooger7882 Ай бұрын

Thank you! That is so cool, and if you see this comment I wanted to ask you something. So I am the crazy MOT kid who didn’t know how to wire a MOT and thought you could see “HHO” and started fights in your discord. Since then I have apologized to all the people in your discord. They have taught me the basis of basics of electronics, and I have built Tesla coils and made my own flyback transformer. I was wondering if I could get back in your discord?

@Mr11223marc Ай бұрын

Hey, thanks for this. Nice explain about control igbt H bridge and half bridge. Just where do you find isolated dc-dc? ( îm french sry)

@Tsindur Ай бұрын

he just used transformer

@breezetixhv Ай бұрын

Custom transformer with isolated coils.

@user-db5pf5uv2e Ай бұрын

This is whole invertors theory lesson

@justinabrahams9432 Ай бұрын

Will I be able to use this for induction heating also, If so, I would like to purchase driver boards from you, I'm tired of building drivers.

@breezetixhv Ай бұрын

Yes you can, just drive it at high frequency ac that's all you need

@TrenboloneAcetat Ай бұрын

RAAAAAAH🦅🦅🦅🦅Where did you take that big ass ferrite core? Is that u86 or something? Bro i would be so grateful if you explained how a hfvttc works.

@breezetixhv Ай бұрын

They were just cheap 3c80 ferrite cores. Bought from Mads lundbaek (kaiser power electronics). $15 per 4 I believe. They're not very good

@TrenboloneAcetat Ай бұрын

@@breezetixhv hfvttc bro🙏🙏🙏🙏 at least explain how that works. Pleasee. Especially about the resonator, how the flame appears and how it oscillates(i dont get how a grid cap discharges)

@jiggilowjow Ай бұрын

ah the real plasma king

@samueldavies646 14 күн бұрын

where do you get hold of the huge transfo core?

@breezetixhv 13 күн бұрын

they arent that huge, and those ferrite cores are pretty weak and old probably from the 1990s. You're better off with n87 or pc40 or others

@TheCORC964 Ай бұрын

Noice

@squishvr174 Ай бұрын

YAY NEW VIDEO WOOOOOO

@toxicaimwareplayer Ай бұрын

breezetix, when video with cs2?

@r3struction Ай бұрын

But what can you say about TVS diodes? (on G-E or C-E)

@breezetixhv Ай бұрын

They're optional, probably recommended. On g-e. C-e it doesn't really do much. I don't use them

@LegoTechnicsRule Ай бұрын

Why do you seem to like series resonant half bridges? With parallel resonant half bridges with DC blocking capacitors the IGBTs don’t need to handle the entire resonant current.

@breezetixhv 24 күн бұрын

Not sure where you're getting that from, I haven't ever done a series resonant.

@analoghardwaretops3976 Ай бұрын

Pls make sure you ARE using a genuine 3525A or better still a 3525B...& not just 3525.... The " B" version is the upgrade of the "A"..whilst the original was just 3525..... Check all 3 datasheets to compare differences....You may want to look up the ML4818 controller... This has dead time built into 4 dedicated outputs and is current mode controlled , unlike the3525 voltage mode chip.. The 4818 is ideal for resonant topology.

@breezetixhv Ай бұрын

Gotcha, thanks. Yeah, I showed in the video of the SG3525AN that I bought.

@analoghardwaretops3976 Ай бұрын

@@breezetixhvlook up again.... there's something more added to my earlier post...

@VariacManiac Ай бұрын

"Air fryer wasn't done yet." Hahaha!

@breezetixhv Ай бұрын

lol

@user-hd4fc3hp9q Ай бұрын

are this driver ok for driving tesla coil at 150kHZ?

@breezetixhv Ай бұрын

The SG3525 oscillator has a rating range of 100hz to 400kHz. It could do as low as a few Hz, and as high as 550+ kHz as far as I can remember. You need IGBT bricks or smaller packages that can switch at that high frequency.

@Tsindur Ай бұрын

why do you need a bridge rectifier? cant any rectifier work

@breezetixhv Ай бұрын

You need ac to dc rectifier to igbts. If you're using batteries or pure dc from supplies, you don't need it and the caps

@Tsindur Ай бұрын

@@breezetixhv why does it have to be bridge though

@breezetixhv Ай бұрын

@@Tsindur wdym? You want a full bridge rectifier to convert ac to dc into the igbts.

@Tsindur Ай бұрын

@@breezetixhv you can just use single diode or 2 diode full wave rectifier though why does it need to be full bridge

@breezetixhv Ай бұрын

@AZhang728 why wouldn't you want to use a full bridge rectifier? Get full wave and more pure dc? Do whatever you want, I don't see why you.would want to use a single diode or something

@contomo5710 Ай бұрын

i dont dislike the video or anything, i thinks its good and talks about whats going on, i just think that you may need to invest the time into a script. i feel like you realised a bunch of mistakes while cutting, and decided to fix it in post, it feels like there too many jumpcuts

@breezetixhv Ай бұрын

I did use scripts.

@contomo5710 Ай бұрын

@@breezetixhv okay but you do have to agree that the video is a little jumpy? :P

@breezetixhv Ай бұрын

@@contomo5710 that's how I edit my videos. I like to keep my videos nice and short if I can to save viewers time. If you don't like it, then too bad

@contomo5710 Ай бұрын

@@breezetixhv i didnt intend to offend. sorry about that

@RoboArc Ай бұрын

My only real question...why do you need this 😂 just like watching plasma ? Or are you going to build something of your own desgine that requires this or just more tesla coil stuff thats all over the net, maybe long range radio or something ? Dont get me wrong, im an engineering student so i understand the importance of lessons in this. Im just asking whats your personal goals with this project 😂 This type of shit is a 1 way ticket to jesus 😂

@breezetixhv Ай бұрын

I built it for different transformers to drive at different frequencies. I've pulled 8ft xray transformer arcs with it.