Bloody hell is all i can say about this one. Studiying EE for 4 years now, took a break to watch a new video from my favorite YT channel. This is some next level engineering space magic, gave me a headache halfway through. Can't even imagine the amount of work and effort you put into this video, and i'm actutally glad you decided it's not worth repairing/not repairing it just for the sake of the video. It's appreciated, no doubt about it. My mind is simply blown by how far you went in on this one, and the fact that you're sharing all this knowledge for free. But you still owe me a fire extingusher for the headache ;)

You can hear the excitement on his voice when the PSU starts to smell :D

PRE-LIKING cause a teardown of an 850W PSU from diodegonewild IS going to be WILD!!!!!!!!!

"This is dodgy, lets plug it in" This is why i love you . Stay safe though!

Even 3 yrs later, you still deserve credit for these schematic drawings. Must have taken a million years to prepare this video I guess. Always nice to see your cat help you

Watched and studied it all. Repairing a new never used new Apevia Signature ATX-SN1050W 1050W 80 PLUS Bronze Power Supply I bought for $10 on Ebay ...not working. I traced from 110VAC input to the outputs. Single cap for the +180vdc after the input bridge, unlike most with dual caps but that was the only power reading I was getting. Nothing was turning on. All the semicons tested good. So figured I need to find where the +5 vdc was being supplied from first ...the small transformer and associated ic next to 2 opto couplers. All looked and tested good and found the +5 vdc from that circuit. So i traced the +5 vdc from there and found a mini crack in the +5 vdc very thin 1mm trace on the edge of the circuit board at one of the 4 mounting corner posts. Apparently the box had been dropped with enough force to move the pcb enough to crack the trace. Solder bridged it ...success. Your info helped me track it down. Thanks

I really love the fact that he doesn't use ads in his videos or sponsors, greetings from Bulgaria :)

I’m just halfway the video and amazed by the detailed explanation given. It’s a lot to chew on but very interesting! Your assumption that a screw might have caused a short circuit seems very plausible. Maybe something else broke down first and then after the first repair attempt the screw . . . ehm just screwed everything up.

16:31 "So as you can see this power supply is properly exploded" I'm dead

What amazing insight and experience you bring to your videos. I'm studying EE and recently power supply design. I love what you are doing, your sense of humor (and your cat). Thank you.

Holy crap! That was super in-depth and understandable! Some of those circuit blocks are absolutely brilliant. Keep up the incredible work!

I really would like to see one day a collab episode with DiodeGoneWild, Electroboom and Photonicinduction. It would be extremely awesome :D

the inverter was a lot more simple than i expected. makes perfect sense to me, just never learned how it was done before so thanks for the explanation.. awesome video as usual. best channel for tear downs on You-Tube!!!

This person is just great. Being electronics hobbies I have an immeasurable amount of appreciation and for not only his knowledge but his generosity it making us so much amazing content. The bonus for me is no matter how shitty a day I have had, how stressed I am his accent makes it totally impossible to stay that way! So from me to DiodeGoneWild....thankyou brother!!

Wow so informative! I have learnt more from your 40min video than at school for a whole semester. You should get more attention because this is gold quality content!!! I like your work keep it up!

One of the best videos of this type I've ever seen. Packed with such a lot of useful information. Also looks like a good PSU for modding to run a remote solar powered computer set up, or just to use a PC on a vehicle, without having to resort to using an inverter. I'd guess many dead supplies like this have only the main switching section that has failed, so great for re-using and getting a second life as a battery powered computer PSU.

Sir, you and your sense of humor make learning electronics a whole new adventure. I must donate !!!

You are a genius... Can never imagine someone understand such a complex supply and explain it

Probably the most interesting voice and accent combo on KZfaq. Excellent video, thanks!

I've been looking fore something understandable about ATX power supplies since I'm into electronics. And finally after years I found it :D Huge thanks!

You are the king of the SMPS

Love that long troubleshooting & explenation Videos from you. Great Video, thank you!

althrough gruaduate of an EEE years before, still attening the PC power reverse Engineering course now, thank u,DiodeGoneWild, your are a good lecturer.

The amount of knowledge and detail of your explanations are simple incredible, keep such a great work!! Hope one day I become at least a 50% as good as you are with electronics!!

Awesome explanation my friend!! You sure know these confusing supplies very well. Love your humor on the subject as well. Thank you!!

Wow! Watched the whole thing. You've got it down my friend. Wish i had your EE skills. Super informative vid. Keep posting.

WOW! A very clear and concise explanation of a very complex switch mode power supply! Excellent job sir! You really know your stuff!

Best video so far, I really enjoyed this detailed deep dive into the function of power supply components.

Excellent, as always you are really good at explaining different SMPS topologies.

Thanks, Dude. Excellent in every way. You're a natural teacher. Keep it up, please. Can't wait for future uploads. BTW, I have a Gigabyte badged power supply that I won in a computer magazine competion but blew up on first use. Haven't got the heart to throw it away, sentimental reasons, but happy to donate it to you.

The best EE channel on youtube hands down!

"Octa-coopler" lol. Awesome video, incredible detail and a thorough explanation! Thank you!

Best lecture ever about power supplies , your video was very informative to me , a tons of knowledge , I wish you a good luck & thanks a lot .

Thank you very much .you explain accurately and clearly . One of the best I have listened to here.

I have the same Makita:-) one go the best small battery driller and very strong:-) working fine over 8 years, and I'm using it almost everyday! Grate video like always, thumbs up 👍

Fantastic Video! Thanks for all your hard work. Extreme effort for sure. It is very much appreciated! I have a few repair videos and I try to explain what I can, but this is some next level digging in and understanding!

Really great information about pfc atx-power supplies. Thanks it was nice to watch and learn something.

Thanks for sharing with us! Very complicated circuit, and you probably took some time to investigate all these circuits. Very nice!

Another very entertaining and educational video...thank you.

Power supply videos are the best ! great explanation

Your awesome knowledge combined with your great videos steals many many hours of my free time. And it's worth every second! ☺ 👍Keep it up for a long time!

OUTSTANDING - Xtal clear explanation. THANK YOU

You are becoming one of my favourite youtubers. Keep it up

I have a similar 750W P/S needing repair so I was looking forward to a full repair of the one in the video, but I understand the reasons for not doing so. Sometimes the damage is so great as to render any repair effort too costly in time and materials, especially when inexpensive replacements are so readily available. However, I do appreciate the detailed walk-through, and the experiments with the working sub-sections were very enlightening as well. Love the accent, BTW, it forces me to listen more intently and I therefore learn more.

Thanks . It help me alot to knows the way of complexity powersupply how it work . This things take alot of time to know . Thanks

Thank you so much man. You are the best electronic enginier that i know. I impatiently waiting for your next videos

This is exceptionally well explained. Thank you very much!

The reason i clicked was because of 80+ Gold PSU so I thought this might get complicated for him but i was wrong

What an enormous video!!! You made my day. Thank you so much for your big lesson

Talk about going beyond the call of duty. I learned so much from this one video it's amazing. Thanks so much. PS. I love your accent, it makes me smile.

Another Great video congratulations DiodeGoneWild :) ! Keep those vids coming! i already got the popcorn ready :)

I've been watching these videos lately. I'm really amazed at the skill and work that you have been giving in reverse engineering these SMPS circuits. I've learned a lot on your videos specially on understanding the general design of these power supplies. I've really gained confidence in tinkering with these devices and understanding its complicated circuitry. With your video I have fixed several power supplies mostly ATX power supplies along with some exciting fireworks on the some. So with that I would like to say Thanks! P.S. Would it be possible to make a content on the common failures of these power supplies and what could possibly have caused it. Most of what I have fixed are failures on the capacitors at the output side. And those that made fireworks and big bangs are usually exploding NPN transistors at the primary side.

Best SMPS guide... bravo

A very good explanation ! Thanks for sharing !

Terrific video. I learned a mountain of information.

My respect for you is directly proportional to my misunderstanding of power supplies. 100%! Thank you!!

I work in a company where we design these power supplies with even higher power ratings. I am currently working on a 3kW AC-DC power supply. I really appreciate your knowledge and the ease with which you handle these things. I am new in this industry and I struggle to understand the supply if I don't have a schematic and PCB layout with me. So I am curious to know if you actually draw the schematics from your own analysis? If that's the case then you are a super hero :D Plus, your cat makes the videos even more enjoyable!

Fantastic explanation on the Active PFC. I always wondered how that worked. It's more complicated than I expected!

thank you for such a detailed description and explanation of the working, I want to build a similar supply for solar power panel in series with the power correction for open cicurt voltage.

A great explanation of a complex circuit

Excellent video ! Congratulations and a big THANK YOU !

Very interesting learning about how these things work! Also answered why some newer PSUs have significantly different sound characteristics at low loads.

dude. you are very good at teaching. thank you.

Excellent video, well explained and I learned so much. Thank you.

Absolutely usefull to watch this video. There was a lot to learn about things totally new to me, especially in this detail. Exactly the usefull details, very clever and good to understand drawed and explained. Indeed, this was very worth watching with full concentration. Glad i did, and some of the most interesting bits i had to watch a second and sometimes a third time to get it really, to learn it usefull.. Oh I simply love this channel. His real usefull knowledge this clever diode teaches here, and even for free!?

suuuuch an amazing video. You are a genius! Some people dont understand those thing. Others do but have no clue explaining it, because everything is so easy to them. you on the other hand besides beeing fun to watch because of you accent.. no i mean because of the things you have and use and do, are explaining it just step by step

I love this kind of videos !! Thanks for sharing !!!

you r very good elecronic man..look at the scematic make me mind blowing..goodjob

Excellent walk-through.

Awesome vid, very informative, teaches A LOT of stuff. Please keep up the good work!! Liked, loved, digged, everything. Primary advantage of old and cheap switching PC PSUs is (I think) that, being them relatively simple, they are quite easy to fix in comparison to newer and more complicated ones. This one is sort of an overkill on every aspect with many SMDs under the PCB and a lot of discrete controllers, not to mention the much more cramped space in which we would have to move. Enermax builds amazing PSUs which fail rarely, but they seem quite hard to fix if they fail.

That was so funny...The cat....the primary paw, then the censored tail end....Very, very funny.

You are very well trained in electronics.

Thanks for the PFC control explanation. Very Appreciated !!!!!!!!!!

Splendid explanation!

super gut verständlich erkärt!!

"I can smell something beeehrning"

Sir thank you for this GEM! You made me wanna check out may broken 650w PSU thank you!

I don't understand most of the thing you say, but still enjoy it.

you got a nice project box with a fan 👍 I love switching power supplies, there is a lot of useful components to reuse ( if not blown 😂😂) big blue thumb 👍👍

Very helpful video 👍

Love your way of explaining 😂

Nice video, though you didn't repair that power supply but you explained how it supposed to function in detail, i really appreciate your effort, thanks.

this was an excellent video , i learned a lot , thank you for it .

Wonderful tester, you got there.

Amazing explanation!

Just exploded my PSupp fuse entirely - this vid is pure gold and the cat - that's a proper dude who makes space for his furball!

Oh my gosh!!!!!! What a great explanation!!!!!

Wow! Another great video. Thank you.

This is a great video. Congrats

What a huge investigative work! Great review and lots to learn here. I think it was a good decision not trying to repair this one ;-)

Thank you. I finally understand the Power Factor

I loooove your battery backup idea. I may expand on that and make a... safe... version

This video is insanely well done. Ty. I'm trying to learn how to convert a reg psu to run off 12v dc input instead of 120v ac

Very interesting ! Thank you. I noticed the CCCP on your oscilloscope.

Amazing video

Excellent video. It's Big Clives poundshop powersupply teardowns on steroids. I learned some new stuff here. Subbed.

oh this is the video i m waiting for !

@DiodeGoneWild I'm glad you left your cat in the video. He or she looks so adorable.

I like that Soviet made oscilloscope that you are using - Sdelano v SSSR. You are doing wonders here with electronics bro, keep up the good work !

Well explained, thank you