Finally, the power supply arrived ..... Part 2

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[@ivanzsar]

Please don't take down this Channel.. Please.. This is the only Channel worth watching to learn Repairs and something else.. Thank you Sorin..

[@aqib2000]

Ivan Sarmiento clearly you haven’t seen Rossman Repair

[@AlanHernandez-kl7ld]

@@aqib2000 Rossman only repairs MAC and allways using Schematics. It's OK but not as usefull as Sorin repairing.

[@aqib2000]

Alan Hernandez principles are exactly the same mate

[@constantinionescu6839]

@@aqib2000 most of Rossman work is on Apple's computers,he can't work without schematics like sorin

[@aqib2000]

Constantin Ionescu give Sorin simple iissue with the SIO chip and he doesn’t know how to reprogram it...

[@JesusRFernandez2012]

I followed this channel for awhile now, I dont usually comment on videos but this time I felt I had to do something.. let me tell you DONT you dare worrying about the comments you hear Sorin, seriously please keep going with the channel, we would love to have more lessons from you and shop workflow because it shows the reality of the job! also, I personally would love to see what you see, I would appreciate a lesson where you show us how you identify components (how do you know what is a diode, a mosfet, a transistor, a resistor and an smd capacitor) and of course how do you recognise what the connection between the components are :) I love what you do, unfortunately some people dont appreciate how much knowledge you have and that they are getting all of this FOR FREE ., never stop doing what you doing

[@geirmortenolsen6334]

+1

[@sirjhay-ar6908]

+2

[@andrewboraine7322]

+3

[@holawaleh]

+4

[@davidbegin2239]

+5

[@BM-oz2cd]

I could not find a better channel of electronic repairs than yours Sorin.

[@ivankirola2707]

There is diodegonewild

[@kallehanhela782]

there is non better education wise.

[@interestingspagetti]

Take no notice Sorin. Keep the video's coming. Your channel is excellent

[@karolsadurski1013]

I apologize for all slow people or brain dead ......sir you are doing great job thank you.

[@bobivasiliu]

Salut Sorin!Esti un om cu foarte multa experienta in domeniu si tot ce faci pe acest canal este de calitate.Sa nu uite cei care comenteaza negativ sau te jignesc,ca tot ce faci pe acest canal este gratuit.

[@eliezercatseye1298]

i guess in electronics, no matter how complicated the design is, you still go back to the basic and general rules. OLD SCHOOL STILL ROCK!

[@BobMellor1954]

Hi Sorin, very clearly explained for new starters, thank you.

[@orange11squares]

i think people confuse the "current limiting function aka CC" with the "short circuit protection function"... those two are not the same thing. A short-circuit protection is in fact a cut-off of the output voltage and current to protect the connected equipment otherwise you will keep pushing 5A into the equipment until smokes comes out. [because there is a short] A current limiting function is keeping the voltage to the preset value until the current draw goes to the maximum that you preset then the power supply goes into CC - constant current mode and voltage start to drop according to ohm law U=R*i where 'i' is constant but no short is present. It is probably easy to confuse the CC mode with short circuit protection because you may ask yourself : At what point the power supply with CC mode is considering a low ohm load as a short? at what value? And probably the answer has something to do with the voltage drop difference. If the voltage drop is to big then the power supply may cut-off the output and consider that the load is a short. A power supply with CC mode but no short-circuit protection keep pushing amps into the device you connected until it's melting and goes into fire. The power supply is ok because it went into CC mode [max 5A] but that doesn't mean it has SC protection - your device is melted so where is that protection?

[@armunro]

This is probably the best comment. To cut costs I think the idea is you set up your current limit before you test stuff rather than have the more expensive feature of short circuit protection. Short circuit protected means it won't go bang when you short the terminals; instead it current limits to 5 amps! What I mean is they are being somewhat economical with the truth!

[@torem2538]

​@@armunro The 5A is maximum, the SC current is adjustable in CC mode. This is just a built-in solution in Power supplies today, and it is a more advanced function than Sorin is making when he hacks into the HW to get rid of the SC protection. READ the manual, Sorin laughed at the manual, he should have looked through it, everything is explained.

[@electronJarvs]

@@torem2538 You are right

[@shawntyson8]

@orange11squares You are Absolutely correct. Best comment I've seen. Everyone that's disagreeing is not understanding CC is TOTALLY different from short protection. CC mode is only limiting the current while shorted. Short protection will kill the power no matter what the amps are set to. It's a basic understanding.

[@electronJarvs]

@@shawntyson8 I think you should watch the video again. What's the point of it just shutting the power off other than for if you connect the wires the wrong way around. You need power, it helps finding the short.

[@aleksandardimitrijevic7929]

Look. It is your channel. If someone does not like what they are seeing, they can play something else. You are doing a good work. I can only thank you for your incite and advice All the best

[@intrax2tv]

Sorin you are a really great guy. Thank you for the patience you had explaining the short circuit protection to all your negative commenters of yesterday's video. Hat's off to you !

[@jasonledrew7677]

Thank you for following up with Honest and teaching the channel as I certainly not an expert. Much appreciated as always

[@MrRvdbeek]

Thank you Sorin. You are doing great explaining to the people that think that it is protected when the voltage drops. No way that’s no protection. See you soon again with more from your experience and explaining how it works.

[@opeyemicomputers5860]

Best teacher i ve ever seen on KZbin Experience too much. I trust Sorin never do anyhow video

[@ceesvanbijsterveld514]

Sorin, you are right! In my experience there are various strategies for short circuit; 1. cut out (a destroyed fuse, or heat- or electronic resettable). 2. Limit the current e.g. to a set value, as in your power supply. 3. Fold-back characteristic: when the current gets higher than a set value the voltage regulates the current to a minimal value until the load lets current get even lower than that. Thank you Sorin for you lessons, I follow them already for many years. I mostly admire your open and honest comments.

[@Iassonas65]

Dear Sorin, you are absolutely right. There’s no short circuit protection in this power supply, there is only a current limiter possibility. Keep on rocking.Love your videos they are very educational. Thumbs up

[@OwnMyBit]

Hi Sorin If you read my comment from the first video I think I was perhaps the only person to understand exactly what you meant. I'm older than you and have experienced just what you talk about. However, the manufacturer of the new power supply is not wrong (or lying) because they are referring to the power supply being protected from damage due to shorted outputs and not the equipment under test being protected. In the old days power supplies would blow up (exactly as you describe) because the early transistors and transformers were not capable of supplying high current at low output voltage. So manufacturers added circuitry and usually a relay to cut the power and protect the power supply from damage. Modern power supplies have much more robust components and are able to supply high current at low voltages without being damaged so the circuitry you are used to having is no longer needed to protect the power supply. There will be some thermal protection to cut power if the short circuit is present for a long time and the new power supply overheats but often this condition is never achieved. So the manufacturer is correct; the power supply is protected from being damaged due to short circuit - it has short circuit protection. You, and other older engineers, use the different type of protection circuitry of older power supplies to help protect the equipment under test. This was never intended by the power supply manufacturers and is an accidental "extra feature" of older power supplies. So you are not wrong in how your older power supply works and the manufacturer is not wrong in saying the new supply is short circuit protected.

[@mihaiconstantin2395]

but the old power supply could deliver 5 amps when a load is attached....

[@alanholt6535]

Thank you. I didn't get it either, until you showed the known good power supply. I have never seen a complete short before, so I was confused too. You have performed a valuable public service. Thanks.

[@tray4351]

Thanks Sorin, you are amazing. Thanks for teaching, learning so much. Appreciate you

[@johnfrank6302]

Sorin, your videos are great, thank you for all your effort, please keep them coming. I think it may be helpful to clarify Constant Current (CC) and Over Current Protection (OCP) in bench power supplies for those looking at purchasing or even making a bench power supply. "Short circuit" protection is a notional idea from the power supplies point of view. As long as the power supply has suitable current and voltage ratings what may be considered a short in one situation can be a working low resistance, high current load in another. CC (constant current) mode should deliver as much current as the load can draw up to the CC setting (or power supply limit) and vary the voltage as required to suit the load resistance. OCP (Over Current Protection) should switch off the output when the load current exceeds the OCP settings. On better power supply both can be active (it makes sense if the OCP is greater than the CC setting). I think the later (OCP) is what is being referred to as "Short Circuit" protection.

[@khalkhal2372]

Very good idea to build a power supply

[@Todestelzer]

Khal Khal not worth it. It's complicated and very time consuming. You have to source the parts too and it will be much more expensive in the end.

[@R4MP4G3RXD]

@@Todestelzer I disagree about it being complicated, a nice linear power supply was never complicated to build and is bulletproof and easy to fix if you happen to break something. Sure it might be time consuming, but it's good for practice. I do agree on it being more expensive, because transformers can get pretty pricey, tough you can get very powerful ones for very cheap or even free if you salvage it from a broken home audio amplifier.

[@Todestelzer]

R4MP4G3RXD it depends. You maybe want a reverse voltage protection. A simple diode is no good. You want 10 turn pots (expensive). 3-5 amps Transformer also expensive. You need 2-4 power transistors and a big heat sink and 1-2 fans and a temp regulation for the fan speed. Now you are maybe at 70-90€ worth components without a housing for it. For 90€ you can get a linear PSU with a digital interface and OC dropout protection. In my opinion it’s not worth it. But if you want to play and learn how to build a PSU do it. It’s a nice project.

[@R4MP4G3RXD]

@@Todestelzer an ideal diode isn't such a big deal to implement, but you can find good circuits online and miss the thinking part and as I just said powerful transformers are pretty cheap if salvaged from audio amplifiers, those also have powerful transistors (most likely some of them are good considering that the amplifier is bought faulty for parts) and big heatsink(s) too

[@R4MP4G3RXD]

@@Todestelzer and you can also use a fine and a corse adjust pot instead of the multiple turn and it would be cheaper by a small amount. And even if you don't save much in the end because salvaging is for the weak, puting together something is very good practice and if you did something wrong it's good practice to troubleshoot also.

[@g.johnson930]

Excellent! I wish I had had a teacher with the patience and knowledge as you, Sorin, when I was in school in the 50's. Not to say you missed your calling but it is a shame your not able to teach full time, with "repair projects as aids." Thank you for your time, effort, knowledge, AND PATIENCE. Even retired from a lifetime of electronic design and repair, you are a welcome part of my day.

[@michaelmarcoux3653]

A big thank you, Sorin. I learn something today. Please don't stop.

[@Furygasm]

“You just burned the processor, uh huh, that’s not good. “ - I laughed out loud at work at a few points but I remember this one most. PLEASE don’t change your channel because of a few idiots that don’t understand the basics, they probably skipped the basics to get to the good parts (actually fixing stuff), but this is a perfect example of why we SHOULD NOT skip the basics before getting to the good stuff. Your videos are very unusual compared to other channels but you bring so much knowledge and experience to us, it’s invaluable-keep up the great work.

[@EvilEmp1re]

This is a great example of why this channel is needed so bad. Keep up the good work comrade!

[@Incertus_]

my friend... those that see more than 7 minutes of video usually dont comment...i am the prof of that... dont terminate your channel... it is excelente! cheers \o/

[@muhsinimruma802]

i have learnt alot from you Mr. Sorin...we are all together behind this channel for whatever experience your giving to us...ignore every bad comments try to do on the way you thinks is good and simplify your work flow....you are the reason am using power supply on my workshop which simplified my work on troubleshooting motherboard

[@danielcotiga9854]

Slt Sorin! Ai zis de la inceputul primei parti ca debutantii sa ignore videoul. In scoala generela se invata legea lui ohm. Lol. Super tare explicatia. Super tare filmul si informativ. Iti multumim pentru rabdarea de care dai dovada de fiecare data. Numai bine si sanatate!

[@dirtdauber970]

How mature of you to not hold a grudge. Thank you for all you do!!!

[@theboss1078]

You are the professional Sorin, most of us are amateurs that think we know something ;)

[@Sorin388]

An idea for this power source: make a short-circuit protection, which can be activated or deactivated. That will be nice to learn!

[@allelectronicsrepairs7165]

I think that the apology is due from all the people throwing mud on Sorin yesterday. Thank you Sorin for your valuable input. In each video I learn something new, even if it shows the same procedure but on a different device. I would like to see more of your every day repairs, even if you think it's boring. It may be boring for you but not for many viewers. And who doesn't like to watch the same procedure for the 20th time - always can stop the video. Your ways (even if not always orthodox) helped me to start my own repair service in Australia. I admire your skills to repair things with what you have available, rather than complaining that you have to order parts and wait for them for a long time to arrive. It's a mark of a good technician that he can repair things with almost no spare parts in hand. Thank you again!

[@niklaswennerstrand1010]

I am sure Sorin will update this video when he realizes what he did wrong. Or he will remove the videos because he is actually not correct. (You don't start with CC at 5A on a lab power supply.) CC means constant curent. The supply correctly supplied current of 5 Ampere and lowering the voltage not to go above 5A. The over current LED did also light up. Exactly how a PSU should work that have over current protection. What he did wrong: He started at 5A CC. You should start with lowest current possible and all current produced above that limit should lower the voltage. Both his power supply was working the same way.

[@wendelljackson1488]

I saw your video on yesterday, and I couldn't wait to see your follow-up today. You did not disappoint. Good Job!

[@Gary-ts6dh]

0:32 - Sorin, don't concern yourself with the negative comments. Electronics channels like yours keep all us on our toes. In my view, you as a content provider on KZbin rank among the highest available among electronics repair channels such as the Rossmann Group; Learning Electronics Repair; iPad Rehab; EEVBlog; Mr. SolderFix, etc. You take the extra time necessary to explain your way of thinking when approaching electronics repair. Keep it up!! 23:30 - That's a 24vdc fan, not 12v.

[@chronocepter]

Turn down the amps to protect your circuit. Turn it up to make a toaster. It's a feature.

[@gr8safi1]

Brilliant work Sorin! Thank the Lord for people like you. Once my friend! Keep up the brilliant work.

[@nesport3751]

Hi Sorin, i bought the same power supply, and as you said, it has no short circuit protection, they are lyers... thanks for sharing your video with us.

[@Jan3Sobieski5]

Where are all the smart a$$ commenters from yesterday?

[@user-pe2uv4fn6w]

they went back to school?

[@incandescentwithrage]

No, here's one. I commented it was in CC mode and "he could be seen turning the current control clockwise to it's endstop". He is using it in CC mode and it is supplying the requested current. Requested, not from nowhere

[@Jan3Sobieski5]

@@incandescentwithrage but again, no short circuit protection.. was he wrong with that?

[@nyprince5922]

I think the confusion arises from the fact that for this particular model, you set the current limit by actually shorting the leads (it is in the instruction manual). So, to the people who has this power supply, what Sorin did was the correct way to limit current (although he raised the limit to the max of 5a...for best protection, you would lower it to the amount your device can max handle).

[@Todestelzer]

NY Prince that's not the point. This PSU don't have a short circuit protection. And he bought it because it should have one and he wanted to make a video how to remove the protection.

[@matafungsi89]

i plan to buy PS.. this video is very informative. before this i have no idea how short circuit protection work on PS. thanks mr. Sorin! 🙆‍♂️

[@parthapratimmanna2071]

Before whatching video on this channel i just don't know anything and i think electronics a hard things to learn. But now i have better knowledge than before. After watching beginner videos i just start to enjoy the electronics. Again than you so much sir.

[@Aspen.garage]

could not find a better channel of electronic repairs than yours

[@theyoutubetestchannel]

Your channel is easily the best electronics channel for those who want to learn . Thank you .

[@DT332]

Sorin, please don't be disappointed from us. Maybe we are too young and inexperienced to understand. I thought too, that limiting the current means a short circuit protection, but after your video I learned what it really is. I think the problem is, that the descriptions of the Chinese products misted our minds. And I'm so sorry that some of our younger guys are that arrogant to say that you are too old. It's easy to tell someone he is too old or too young to understand something, but you did it the right way and take your time to explain it to us. Thanks for all! With the best wishes from a young german engineering student

[@mrlab2660]

DT332 No, they are designed like that...

[@EETechStuff]

I"m sure nobody will read this since I stumbled on the video 4 years too late, but for what it's worth, Sorin is correct, with some clarifications. The purpose of short circuit protection on a DC power supply is specifically for the case when you are in CV (constant voltage) mode, and when you apply the voltage to your circuit it exceeds the present setting of the CC (constant current) control. For example, if you are in CV mode at 20 volts and apply that to a low ohm circuit (say 1 ohm) you might get an initial pulse of say 20 amps of current, even though the CC limit might be 5 amps. Since, by definition, you can't get 20 amps in CC mode (due to the CC limit), the big concern is high currents in CV mode. What short circuit protection does in that case is this: the internal circuitry automatically sees the high current and switches from CV to CC mode, and after a time delay (often user settable to allow for short duration, non-damaging overcurrents) the short circuit protection senses that mode switching and totally shuts down the power supply output. I believe what THIS unit does is it just switches from CV mode to CC mode, with the output current limited to whatever the present CC current limit setting is, but does NOT totally shut off the output. So the difference is either shutting down the output completely or limiting it to the CC current limit setting. I suppose that automatically switching from CV mode to CC mode and limiting the current output to the present CC limit setting can be described as "short circuit protection", since you could make the case that the user should have set the CC limit before applying the 20 volts if the 5 amps CC setting was too much. Anyway, I think that often the short circuit protection on more expensive units is defaulted to OFF, so I wonder if this unit has some way of turning it ON (though I doubt it).

[@myirepair7002]

I wouldn’t dislike any of your videos Sorin, you are an amazing guy. Every day is a school day 👍🏻

[@mbg1668]

now i undertand what you meant thank you for videos we learn a lot keep on doing you are a excelent teacher

[@networkdwarf]

I am always learning a lot from you. Just ignore the younglings, life will teach them a few things sooner or later. You have my respect sir.

[@tington874]

Sorin, let them speak, don't care, if they would have your skill they would not even watch to your videos. Very interesting demonstration !

[@Adrian_Finn]

I commented on last video and now this video cleared up my confusion, now I get your point and what you were trying to achieve. Much better explanation in this video.

[@lovejoymakhaza5229]

you are such a great teacher you explain everything in detail to an understandable level even for the first time leaners

[@borislicic]

Don't feel hurt by the comments that came from ignorant. If they watched all your videos they would see that you had to extend the probe wires to the power supply to avoid short circuit protection and so you are simulated the load. I watched that video before and yesterday I immediately realized that this new power supply had no classic short circuit protection. You're right, as always, and do not let the jealous people to disturb your work. Thanks for all knowledge sharing and great love from Serbia.

[@ahmedahmed-dt5ew]

hello sir im from Egypt this is why i like and enjoy watching you 1 - you make my day you have a good character so we all love you 2 - i keep learning from you and without you it will be a great loss

[@albertalvarez5901]

Sorin you keep doing the great job you've been doing, don't let negative people that don't know anything put you down with some bad reviews. It looks like your subscribers are going up so that's a sign that your advancing.

[@Derricky007]

Yes Sorin, you are right. A short circuit protection should cut the power completely. You wanted to expose the untrue descriptions that manufacturers give. Other than that if you go to the point of the interest, the power supply for identifying a short on a motherboard is useless with a " short circuit protection ". So not to justify peoples opinions, beside the ones who somehow insulted you, which you in no way deserved, many of the people thought about it in a different way. It gets a routine when you use your bench power supply on a daily basis for repairs. You sir, are a exemption to many others. Your kindness and your will to help others and teach others are outstanding. Keep doing what you do, you got my fully respect. One more thing, these power supplies are somehow protected, otherwise the power supply itself would also burn out really fast. A simple example of a power cut and a real protection is a PC switch mode power supply that has a PFC system and a PWM controller. When overvoltage, or overload occur the PFC and PWM jump in and shut down the power.

[@margyjr]

Another Great Lesson from Sorin, yes Please make a video showing us how to build a power supply!! :-)))

[@parthapratimmanna2071]

I think he is just a real genuine man who have real electronics knowledge. I love this channel for teach us this exactly whats going on in electronics. He is just like god. Thank you so much sir

[@shoaibsiddiqui9188]

i am eager to learn more about power supply from you....thanks sorin.

[@elenium115]

You are the best! Not understanding the ohm law is tragic. I never put comments but now I had to. The job you are doing is priceless. A lot of young people never get so much experience as you have. You are not an old man :) old man is after 80 years old :)

[@jameswilson197]

Some people are just trolls just going around to dislike everything because they don't even understand themselves and cannot accept others who do. Keep it up Sorin, you do great!

[@essambakhashwein]

No dislikes for sorin even if its a boring one..my best teacher

[@wyubby4187]

never

[@ArabianFalcon73]

Greetings from Syria, you are a great teacher, I' m an electronics engineer since 1998 but I'm very sorry I haven't worked in this domain as you do, I hope you health and success.

[@ghislainriou9560]

Thank you Sorin so much for explaining about those power supplies.

[@dsbtsb]

This guy is top tech, i learn so much with this videos.Regards, Diogo.

[@gracc46]

Looking forward to the power supply build.Great videos.Learning lots.Cheers Sorin.

[@groovejet33]

Hello Comrade 👍your funny😂love the way you hold yourself...explain.... and I love the way you talk to the camera as if you are talking to someone. It works very well. You've got natural ability. Keep them coming M8. ❤️

[@delms7418]

Don't listen to others!.. Do what you feel!... You have people out here that enjoy your videos, and learn from them!.. KEEP UP THE GREAT WORK!!!

[@abelsousa3641]

GOOOOO, SOOORIN! Just keep going teaching electronics!

[@khaked-all-sade]

best channel for learning......i love your good work......from iraq babylon

[@pgsss6354]

Sorin keep up the excellent work you 're doing. BTW, your thought about making a power supply was brilliant! Please do it.

[@danielruffin8263]

Your broadcast Rocks. I learn SOOO much from you. I don't comment much, but I do like videos and a subscriber. You Rock my Friend.

[@nutterhm]

amazing video and very good explanation of what and how the power supply should work.

[@zeldasharpe131]

Sorin, I have only recently come across you and I would miss your lessons if you stop doing these. I am learning so much about electronics and have downloaded the whole beginners, the solar project, the power unit project and and most of your videos. I am keeping them all for reference as I have just started to work with laptops and you have given me that interest and the courage to have a go. Don't take any notice of negatives, if the people who watch your videos already know a lot, so be it. But negatives are outweighed by positives.

[@geekdoktor3890]

Now everything is clear. So this is the difference beetwen short circuit protection and CC in power supply ;) I always thought that CC could be considered as short circuit protection. Now I know there is a difference. Thank you Mr Sorin.

[@TrafalgarLawHeart]

i like the way u explain things. its very details.. even im the one with basic knowledge about electronic, can learn and understand something.. thanks alot sir

[@thiago30001]

Thank you for your videos mate. You are helping me too much in the beginning of my car electrician life

[@karlosp02]

Sorin keep up the good work✌️ 😊👍!!!

[@berniken6511]

Nice explanation Sorin well done mate....................................................Berni

[@mryanzou]

Hi Sorin, I do love how you take the time to explain the "why" and "how" things should work. Even if sometime you have to do dodgy repair XD but you also know the proper way to do it! i'm still looking forward for a Hack to disable the OCP/shot circuit protection :)

[@labibleatarilesitedesatari6724]

I got the same and like it. Thanks for analyse. I enjoy!

[@irnbrusnr816]

Who gave thumbs down this man is amazing the info he gives to the greenhorns is top drawer ty sorin big chap

[@steelasd8097]

That's because it's not short circuit protection, it's just a C.C / C.V power suplly, the ones that have the feature you want came with OCP protection and it will cut off the output immediately when the current rise above the limit you set

[@michaelmccrudden2532]

Sorin always enjoy your videos ,keep them coming !

[@io-buggy6925]

Thank you for the great leassons Sorin.Learning evry day from your videos and some times makes my brain go 200 iq when REAPAIRING a laptop or an electronic part.THIS is all thanks to you. Hope to see many many videos to come from you. God bless you.

[@abdullajar8306]

Excellent lesson and the most wonderful explanation We want you to explain more about the power supply I enjoyed this video but in the future we want the video long I wish you health and wellness

[@zyxnull]

Haters gonna hate Sorin, just one word of advice: If you're going to make a video about making a power supply (which will be greatly welcome by most of us) please take your time BEFORE making the video doing the schematic, trying the circuit and making sure you are happy with the design. While we appreciate your thinking process, when creating hardware I think we all prefer a more direct approach without too much digress like it happened in the begginers classes or in the "Let's build a switching power supply". Finally, you are awesome!

[@allaoui38]

thank you sorin, well explained, to detect the component that is short-circuited this kind of power is very useful, it lets a great amperage to position the element that heats. most technicians use this power supply to detect the short circuit but they must know the limit of the ampere and the voltage that supports the line where the short circuit is located

[@peekpt]

Don't be sad, most of people here like you, I told Sorin is in the 90's because PSU on that time have relays to protect the circuit. But we both know nowadays in digital world you can't be saved by a relay, you maybe save a diode or a transistor but a digital circuit you need to be lucky. I'm sorry if somehow I make you feel bad. You are a good person. I like you and watch all your videos.

[@BM-oz2cd]

If we take into consideration every bad comment on youtube we will shutdown youtube.

[@sayou13014]

Some People are crazy... Sorin you made big things for the community. All knowledge i have on Electronic is from your channel. I love it, i love your job. Please don't take attention to the bad People. Your work is very awesome. Some Day i Will go to UK and i Will go to your shop to speak with you about Electronic. So, excellent video today, like yesterday and like usually 👍

[@shaanshaif6672]

I like the way you talk Really fantastic . And thank you , through your videos I've solved many motherboard's problem

[@user-kz7pl4xc1y]

Ești o persoană foarte inteligentă. Îmi plac oamenii foarte deștepți. Salutări din Bulgaria. You're a very smart person. I like smart people very much. Greetings from Bulgaria

[@00000005547]

I know this comes a little late but I bought a similar style power supply, but 10A 30V instead of 5A. I opened it up and its not a linear power supply, instead it's a switch-mode with inductors and filtering. Works great for the $50 it costs. Same story, no short protection but it keeps you on your toes

[@jethrobarr18a]

❤ Great info and tutoring!

[@lvwilb5687]

great job Sorin as usual, thank for all you do. On your next mother repair use this power supply to troubleshoot.

[@climberakis]

Nice idea, lets build our power supply.

[@davidb8826]

Good explain video. Some people just don't understand what was your main idea. The Short circuit protection doesn't exist. Keep doing what you do.

[@1425race]

There's a lot of thick people out there Sorin, take no notice of them. I bet almost all of them would not even bother to look up Ohms Law. Your solid background in basic electronic repair procedure is what we enjoy in your videos so don't get distracted by the muppets.

[@ROYRDX]

Don't get me wrong sir, but i don't know who you are what degree you have or else but one thing am sure that i have learn a lot more electronics with you than my teacher. this channel is a diamond thanks you sir you earn my respect.

[@electronicrescue]

Love the car and brakes comparison. Spot on :) Your vids are excellent!. Have a great weekend, Sorin

[@iugap2002]

Apreciez ceea ce faci. Mult succes!