5V 2A SMPS - test, teardown, schematic, explanation, improvements
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- čas přidán 3. 08. 2019
- Today let's take a look at a 5V 2A switching power supply module. Let's test it, draw its schematic, explain how does it work, find its problems and fix them.
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/ savage_danyk - Věda a technologie
It was more educational than my 4 years of engineering degree.
Thank you. :)
True
It would be a blessing to have him as a teacher when I was (many-many years ago) student
Just wanted to say how much I appreciate the schematics you draw. Really helps understanding how the circuit works. Appreciate your sense of humour as well.
DiodeGoneWild's hand drawn schematics are legendary, they are displayed in a museum next to Picasso... this guy has the knowledge and super patience to actually do it. :D
Probably the Chinese manufacturers are coping it straight from his diagrams (which in turn was originally made in China). lol
@Jad Warren You were right!!!! Nobody gives a shit.
ya and delivery him that back.. to have some more content is endless loop-.-
Superb explanation as always. Thank you for going in depth yet again.
I've been investigating about SMPS for a few days now, and this is by far the best explanation on the net. Very comprehensive and easy to understand. Thanks a lot for your time and sharing your knowledge.
Big thank you for this reverse engineering. You put a lot of effort to explain it as much as possible and even to improve the circuit. I really appreciate it.
36:09 , love your pwm technique.😂
😂
Its WHM (With hand modulation).
@@Debraj1978, specifically say HOMCPWM (Hand Operated Mind Controlled Pulse Width Modulation)
A video is never too long as long as it is entertaining. Thanks for your explanations!
The most detailed explanation of how SMPS works. Recently was fixing one adapter, and it had this 22u/50V capacitor dead, because of which the controller was constantly restarting, just as you described in your video. Subscribed!
Hands down the best explanation of a Switch Mode Power Supply. Thank you Buddy 😄
Great! Don't be afraid to make long videos! Thanks for the explanation, it was really great this time! It was very good that you have decided to tell people what you think needs to be upgraded! Next time show how you unsolder and solder elements, people will learn how to do it.
Best explanation of power supply circuit till now.....hats off....just simply love your work
“This video is getting quite long.” It’s been not even 40 minutes. What are you talking about? More SMPS analysis like these please. You are a superb explainer. And yes I’ve seen all the previous ones too.
Well if you liked this, he has a website: danyk.cz
I've learnt a lot about transformers and switched mode power supplies from this guy...
Oh-ooo... rabbit hole. Thanks! And thanks to google translate, too. Now my evening is done for 😁
That was an excellent breakdown and explanation after watching your videos for two years I almost think I could attempt to build my first very simple switch mode power supply. I’ve built several linear power supplies those are very simple.
I love this guy. Iv learnt more from his videos than any others. He's the only one who goes over everything in the circuit
Do it! It’s challenging but fun. These videos are really helpful.
Really impressive. I love your tear downs. probably one of the best on youtube
I really enjoyed this video and learned a couple of things along the way.
Thanks for creating such good content!
You are the BEST!! Thank you for this explication
This was a wonderfully detailed video. I am constantly learning more from your videos.
I watch a lot of EE videos online, but nobody explains this as well as you do. Keep up the good work!
Great depth of explanation.
Great post, keep up your quality videos that are true special lessons!
Excellent video. Thank you very much for going in such detail and explaining things so well.
Perfektne a zrozumitelne vysvetlene, velka vdaka. Konecne som nasiel co som hladal.
Man your utube Channel is great!! I enjoy watching your teardowns and schem, greetings from México
Well done! I learn much from these videos that show schematics with accompanying explanation.
very great work as usual, lot of new information for a good design, thanks.
Great video thanks for all your time and work
one of the best you tube video on smps.very painstakingly done. please keep it up
thank you love the way you talk , and ex plane slowly , I just repaired a switch mod supply with the help of your video.
Awesome!!!! Your explanation is like Stroking a Cat, patiently and gently for quite a long time. very very nice .
Nice and entertaining as always. thank you for these. looking forward for the next 👌🧐
The best video on smps I have ever seen. Thanks a lot 😀
Man, you are fantastic expert, presenting very well.
Beautiful explanation man!--Thanks
thanks. I've never watched a video explaining so well the feedback circuit of a psu.
love your channel, this is gold.
Great video. I learned so much.
Great explanation! Nice work.
Very nice video as usual, i didn't understand all but with every video i understand more with your good explanation. Thank you 🙂
Excelent job as always. Thank you.
Man , you need a temperature tester. :)>)))
that would be boring. its more Mc Gyver like with those wet wipes
@@funkolog my stomach hurts if i see finger over these rabish isolations/devices.
I think you should have to gift him.
You don't need it when your finger can measure temperatures like "hot" and "super hot".
Someone from techno companies totally should donate one of infrared thermal cameras already. We have 120k subscribers, what the heck?
Power supplies are complex beasts. Thanx for helping me about the purpose of different components.
You're awesome, Diode!
I love this kind of videos , thanks !!!
Love your long Videos! Great explenation, your knowledge is astonishing!
Excellent analysis!!
Brilliant explanation DGW.
Incredible explaining woow thank you
This is a perfect reverse engineering example. Fenomenale explanation. Thanks, I learned alom!
A lot, of course...
Outstanding video!!!!! Thanks!!!!
I love your stuff that you made years ago..... it reminds me of my own childhood.
superb explanation… loved it :)
Superb video as always.
This video is great! I just recently fixed a 12V 2A SMPS that had a cap fail and dry out. After replacing it I found the diode right next to it was getting super hot just like in this video. I'm looking forward to trying lowering the voltage rating of the diode to hopefully lower the heat and make the caps last longer.
Thank you for this great presentation
I love your videos, im waiting for more ;)
really expert professional but simple explanations, easy to follow for amateurs like me
I love your videos!
That diode at 6:56 has gone wild! :)
Great explanation, thank you!
Great video. I love your diy electronic load, I built something similar for testing power supplies.
Very well done and explained.ty. Great job.
Very very good, in the next video you can misure some signals with the oscilloscope (noise, ripple, drive signal, ecc) so we can see the differente between supply with no tuning and with tuning!!
The amount of effort put into making this explantion video is superb and very informative as always man we wish u get that thermal camera and i wish success to your channel as i've learned alot watching your videos i might say electroboom is so overated when compared to you man your a legend kudos!
Good explaining.
Youuuu aarreee a great teacher !!!
Helpful video 👍
superb explantion sir. i would this should be vedio played in every engineering class so student actualy understand concept very clear. thanx lot for your dedication and hardwork. cheers to u and your growing channel
Very good tutorial.
"Now just for fun let's install it in an enclosure" HAHAHAHHA! Made my day! Thank you! You make me laugh but I also learn a lot from you even though I would say I already know a few things. I did not know about how higher temperatures could lead to electrolytic capacitors failing sooner.
"It's just way too hot too touch"
*Continues to touch it*
A more educational version of elecroboom
Perfekt! Highly appreciated!
Thank you, great video
Could someone donate him a proper thermal camera please?
Cause he freak me out every time he touch a smps components with bare hand!
very well explained
So very informative. Nice!!!
Good video! Nice! Sadly I watch it in a blackout with my annoyingly loud generator. But remember, quality over quantity. You didn't need to upload video frequently. Like ElectroBOOM. Less but more quality and professional video. Keep your hard work!
do you live in indonesia?
I've tried watching ElectroBoom, but that dude is outright crazy... too much yelling and acting, not my cup of tea. lol
Hello from Greece and thank you.
My brain broke about 37 times watching this. You are genius!
Thanks for explaining the operation of the IC startup network (at 15:00) Also thanks for explaining the Passive Clamp (snapper Net at 20:35)
Excellent video.
sehr gute erklärung!
You are the best . Thanks
Great! Very helpful!
Excellent Info...Greetings from India.
really good video, thanks :)
Nicely explained.
Amazing video
When you covered over the snubber at 21:15 showing how the surge of electricity that occurs when the transistor turns off will cause the transistor to burn out I was reminded about the $25 spot welders that suffered burned transistors (maybe MOSFETS) when the DC power supply became too low.
Great video
it was best explanation!! specially for starters like me !!
what a nice guy heaven bless you sir. you are truly a teacher and a brain giver thank you sir. what a man
awesome! Thank you!
oh my god, so crazy, but so cool. Thanks for the video ! 🙂
greetings from Brazil to all. 0:32 what ??? where is the assistant cat ??? ``fired´´??? very good. success.
36:08 this PWM frequency is very low ;) and no EMI filter between "you" and mains. :D
Nice presentation
Danyk, u are the best in your videos man!
Kasyan tv is 2nd after u!
I learned much from chip capacitor. Thanks
would not pass the low voltage directive required for CE making in the EU with that level of isolation in the transformer. the mains winding would also need to be double insulated where it passed near the other windings as it makes its way to the pins. most of these power supplies have reasonable PCB gaps and spacings but let down by a few turns of some coloured tape between windings.
great description of how it works by the way.
@Против Глобалes it's self certification, but when it come to a power supply you have to show compliance to the LVD, low voltage directive, which in turn means that you have to show compliance to EN60950 for IT equipment, or EN61010 for industrial , scientific. I have spent 10's of thousands £ to produce the documentation to prove that the product we sell is safe. if you buy a product from china and then sell it on ebay, you are placing that product on thee market in the EU. if it kills somebody I hope you have a large house to sell to pay off the fines. third party testing is done so that your product liability insurance will pay up. UL, TUV, and a few more to boot make a lot of money out of CE third party testing.
just try to self-cert a medical device! that comes under CE marking.
sorry that's it a bit long but I spent 3 years bringing CE marked equipment up to date with the directives and as I said maybe spent £500000, if we felt we could just put the mark on, then we wasted 1/2 million pounds.
I think the sizzling capacitors is probably one of the better demos of why ESR and placement matters. That's insane that its all blimped out afterwards and the diode is oozing god knows what.
Missed the part of him soldering to it, but YT doesn't allow me to edit because Im too non-PC.
i love your videos like thisssssssssss!!!!!!!!!!!