I thought this cant get better, then I saw the welding mask :D

Not dodgy. Handmade.

Just had to take the time to say how much I love your videos. It took a little time to get used to - but you are now firmly in my absolute favourite list. (which is a small precious list). A great mix of humor and knowledge delivered with a unique style.

This is the kind of skill i'm looking for, not needing many specialized machines to make it work. Kudos from India

Wow. Can't say I have seen anything that dodgy in a long time. Great to know it actually works. Show us the welding bead it makes.

Now that's recycling!

I literally can't wait to see the final version of this welder circuit....I hope you do it very soon!

I followed your instructions and now I've welded my hand to my face. Did I get a step wrong?

Man oh man! Nothing better than a temporary solution that turns permanent. 😁👍 I wish I could find a way to easily ship things to you from the usa. There have been dozens of times over the past few years where I wanted to ship you something after one of your videos. A buddy of mine runs a local industrial scrap yard and he gets welders and stuff by the truck load. You wouldn't believe the government entities and big companies who just scrap everything after one big job is finished because it's cheaper to write it off on their taxes. Literally stuff that is less than a year old. It makes more financial sense for them to crush it all at the scrapyard then to try and sell it or whatever. They Don't really allow the public to come in and buy stuff but I go by there a few days a week and he lets me have whatever for about $0.08 per pound no matter what it is. I used to be thousands of pounds of stuff every month sometimes thousands of pounds per week. And it went on like that for the first 2 or 3 years. But it's been 6-7 years now... And you just can't do that constantly you just can't keep up with that pace. It's more than a full-time job and then you end up realizing you don't get to work on projects because it's a full-time job keeping up with all of that stuff He doesn't keep anything anymore he just crushes at all unless I want it. a lot of the government stuff it comes in has to be crushed because it's a mandatory things since it was bought with taxpayer money. But I still get whatever I want and a lot of times donate it to schools and stuff like that when I find someone looking for something, or really need it, or I have the time. But it's a full-time job and I just don't have the time. You can only use so many things. And you can only have so many storage buildings. Then....If you can't find something when you need it or easily get to it.....then you might as well not have it at all.

Please do a video on the IGBT gate transformer and related circuit! Another awesome video thank you!

Thank You Man. I am so grateful that people like you are out there serving knowledge and granting their wealth mercifully. Keep going please.

Wow, big respect for that engineering!

For some very strange unexplainable reason, you can listen to this guy all day. like a damn twilight zone of hypnotic sound. DiodeGoneWild my foot. this guy is crazy smart gone berzerk. knows his stuff....

one has to appreciate what an honest down to earth person you are. Much respect, from a fellow electronic engineer..😀

When you said there’s no motivation to finish it when it works and a temporary solution turns permanent… Story of my life. Happens with 99% of my projects lol

This is the best video so far... Please more videos like this about things you have made.. Long time no cat 🐈 😢😭😭

Nothing new to me, since I've went over your site left and right MANY times :) Just nice to see the old beast in action. I have to calm down a bit, 'cause I tend to get paranoid when I build some high frequency high power circuits, you literally cobbled it together and it works juuuust fine :D

I like your messy design,your brain is full on expert and knowledge

Surprisingly, he seems to be still alive to this day!

ok... ok... your suppressor broken and then you build a welder, and a welding mask to fix it! Big respect! Thanks DiodeGoneWild for very detail explaination!

OMG, this has to be the most impressive project and the best video I have seen on KZfaq. Even without the cat.

I hope that one day you will find the motivation to put it in a nice box and to compleat it.🙂 And also a nice vid.

It is now official, Diode Gone Wild is the finest electronic engineer on KZfaq...Yes, smarter than him too.

MacGyver: How are we going to create a rocket launcher for this minivan without anything to weld it? DGW: Hold my beer...

LoL, this one is your best video. You are now in my personal hall of fame.

That’s awesome Dan!, love it, looks like something out of the apocalypse.

It seems like you make prototype things I enjoy watching your channel

0:25 Excellent schematic! Your work is brilliant!

awesome! i read the article number of times years ago - it helped me to understand magic inside these electric machines. i can also recommend the switching PSUs topologies articles, good stuff there...(so far czech only)

Not just impressed with your delivery, but empowered that it is possible. So.... All things are possible Great DGW.

Skills and spirit, well done, sir!

wait,what?! Danyk? you must be,I'm not mistaking you. I saw the actual schematic,and post on your website! thank you very much!

Thank goodness I found your channel۔ love you

DiodeGoneWild , Waiting for next steps, Thanks For Your Efforts

It would be great if you show all your old stuff, like the tesla transformers. Your website is amazing.

you really know your stuff. really impressive. keep up the good work.

welding mask is the best. :-)

Looks amazing, thank you for your content.

Nice construction haha! Hope sometime in the future you get to fit it inside a proper metal container.

Wow I'm making a digital bench power supply out of scrap currently! It's really cool to see a welding power supply made from scrap!

I would imagine even with your deep understanding in electronics, it would have been created in blocks. Making each block perform as expected, then matching it to the next block. It's still very impressive, even ten years later :-D Hope you fixed the exhaust, exhausting work :) The sub 17v supply looks like it has a "Top" chip or similar, it's amazing how minimal the circuit can become :-). I have been to your site quite a few times, you did build a power supply that was massive, or perhaps it was a welder, my memory is bad. Some of the small supplys i have saved the diagrams, just for personal use only. The section on p.c switchmode diagrams is very handy for reference.

Cool ... now I am going for that schematic; understand and try one myself ... great video .. cheers :)

Awesome! Thanks for sharing! You have built some amazing stuff on your website, please share more of those projects! :D

You are very talented!

You are awesome! How do you do the varnish coated wire for your transformers? I've managed to salvage some wire for rewinding once but most of the wire I've come across is not good enough for rewinding. The varnish tends to be brittle and crack after removing it. To answer everyones first question, yes, I very carefully remove the wire. I'm usually counting windings as it is and will carefully unwind and rewind at the same time or will wind it onto a fresh bobbin. The wire usually looks fine as soon as I remove it, but after letting it sit for a few days I can see small cracks showing tarnish from bare copper. Are you sourcing new copper wire, coating your own, or are there other sources of coated wire I should be looking for? -Jake

Can you please test ZB2L3 battery capacity tester?

Love you videos, been watching a lot of them and liking a lot of them lately. I believe this the first one I am commenting on. But I wish to see you redo this and on a nicer PCB layout (maybe professionally printed). Would really like to see this in that housing you drawn 😂

Please make a video how to build a simple smps inverter. You're absolutely expert in it.

Awesome creation.

Very nice project!! Do you think IGBTs of this kind HGTG30N60A4 can operate at around 80 kHz so as to use a smaller transformer?

Excellent video 👍

Man, you have gone crazy big time 😂😁 You EVEN BUILT A SWITCHING auxiliary ps haha.. I am sure that out of 1000 people, 999 would have just dropped in a low dropout linear regulator IC but not you 👍👍😊 ps: pls show the bead you have done on the exhaust pipe haha

Now this is the kind of construction I use in my electronics projects! But like I always think ... if it works, that's good enough.

Diode, I was recently transiting through Czech Rep. and I swear, half of the cars on Your roads are Škodas 😂😂

Very cool. Great job.

that is crazy PCB ... nice work !!!

Thank you very much for sharing this project. Would please share the complete schematic for this project, please again?

To vyzerá ako výborná zváračka. Teda až na to nepraktické vymieňanie zváracej elektródy :)

Bloody Hell. Best wishes from Northern Ireland.

You made a good job of that im impressed how much does it draw from the mains? Ive seen someone welding straight from mains no rectifier or current control yours is far superior

I wonder if you could use an old very high watt (server power supply) switching...? Just hook some leads to the output. They're cheap but I don't know if they could take the abuse 😬

Nice build! I made one of those with only a transformer. I wound 750 turns of primary and 20 turns of very thick wire as the secondary. The only downside is that the secondary melts after long usage.

Another fascinating video. Thanks!

awesome piece of equipment :D

Nice vid bro!

maybe make some video to explain more in detail how it works (gate driving circuitry, the transformers, the type of ferrite, ecc), it would be interesting!

Do you have any upgrade version of this machine, such as using lm358 to adjust the output current or sth...? It will be very nice to see it!

Could you explain how the shaping circuit that drives the IGBT works ?

Neat. I have seen many of your previous projects on your other channel, where you speak Czech. Many of them are quite interesting, I think.

Not dodgy, just diy! And actually it's very nicely built! But how did you dimension the current sensing, the components and the transformer?

Fabulous! I want to see your car from every angle possible with proper zoom ins and outs :)

That's an awesome welder! Any chance we could see you lay down a bead with it on some scrap steel?

what is the DVM readings i saw in the pictures while you are welding? one says short arc and shows 016 and the other says long arc and shows 036. what are those numbers? I am trying to understand so maybe I can build one of these. Thanks

Do you design power supplies for a living?

That's pretty awesome.

I've gotta hand it to you.... perseverance to sit and wind all the coils. You're proud of them I can tell, and so you should be. I was surprised to see an iron lamination transformer in the output. At 40khz switching, that would be inefficient due to eddy current and hysteresis losses. And it's very heavy. The choke at 40khz would be a similar problem with the bh curve characteristics of iron. The output transformer then looks more like something designed for 100hz, 1khz, 10khz maybe. Please cover the capacitor bank. The charge energy in there is significant and deadly. :) gm2020 . Edited: I saw on ur site, it's not iron laminated output transformer. The two big ferrite cores are impressive. :) Good answer given as to why DC rectification is used with inverter welders - yes the inductive reactance in leads at high frequencies! All around real nice, but a bit on the dangerous side :P

where did you get large hf transformer

Bravo for the build. You really know where electrons like to flow. What is the max power of your diabolic welding device?

This video make my day, very god work

i love it specialy because is a work in progress proget

Nice job

Finally ... I've found your website & hope you explain It ;)

I want to modify this power supply into a 4kw - 5kw power supply for a power amplifier, my idea is to turn the power stage into a full bridge. Can anyone advice me if it's the right thing or not

Great design, almost too great for doing just a welder of that! ;-)

Wouldn't the output be kind of unipolar without the rectifier, since the transformer is only driven one way and freewheeling the other

Can you explain how a pure sine wave inverter works? Thanks

"This the kind of temporary solution which over time turn into a permanent solution". Yep. I know it wery well. I call it a definitive makeshift.

Hello someone PLEASE help me. I don't have that type of old gate driver transformer . So can I wind wire on a circle toroidal core

Ah man I love this channel, the welding mask really got me laughing "frrrrom shoesssss". Hey if it works it's fine! Keep up the content :)

The assembly of 2 switches damaged my mosfet irf460 1 piece when I tried it for the first time

Can you finish this gorgoeus device in a video please? Very nice and dodgy of course!

Please show us the welder in action with your exhaust!

Good work

Why the coil (stabilizer) is always to the negative, side of the output? Can we put it to the positive side?

Hi ...! Always igbts get short sircuit. Its only works well without load.. i tried 40n60 and irg4pc50f. Does internal diodes of igbts affects malfunction...

very nice. ..the schematic show your big capacity..

Thanks a lot. Is there a reason why the voltage isn't adjustable? You converted this welder into a power supply with adjustable current and voltage, but you use 3845 insted of the 3844 can I use the later one as I don't have the 3845?

inspired from your welding inverter article i made my own , had a few failures then success and now i have increased the current to 160 amps using powerful IGBTs IGW75N60T and 150EBU02 DIODE by reducing the value of current sense resistor and increasing the turns on current sense trasnformer. i wound my own trasnformer too using copper foil but i still dont understand how the potentiometer adjusts the current, does it change the 1V threshold of the current sense input (pin 3 of uc3844) to change current. ?

I relate to this so much. I have way to meany temporty hacks that became perminat.

Hi very nice power switching for this inverter, Do you know or measured how many amps take in the input and this circuit works with 120v or 220v? thanks for share.