It means a lot to me, and probably everyone else watching this video, that you took time out of your life to explain all of this so well and go into some of the more confusing details. Thank you!

This video is a couple years old hence my comment is long after the video was posted. This was a great primer to familiarize a technician that never worked on switching supplies. I could have used this information about 40 years ago when first introduced to testing and troubleshooting switching supplies. The aerospace company I was working for designed many multi voltage switchers for use in aircraft where weight and size are at a premium. The technology was quite new at the time and my training was limited to linear supplies. When it was shown how much power these compact and lightweight supplies could produce I was very impressed. The multi voltage computer power supplies so common now are a prime example of this technology. Thank you again for another entertaining and enlightening video.

@TRXLab

5 жыл бұрын

Thanks for your feed back Carl. Glad that you liked it

In all the years I've watched KZread videos, yours has to be one of the very best I've seen. Thank you, was a huge help!

Congratulations TRX Bench. It was one of the most amazing explanations about SMPS that I've seen. So detailed and rich of tests using scopes, multimeters and so on. Thanks for this.

@TRXLab

7 жыл бұрын

Thanks for watching Eduardo 73

SMPS: Very clear and Professional explanation with practical and theory.Typically excellent video!

@TRXLab

7 жыл бұрын

Thanks for feed back Cheers.

the most clear and detailed explanation i saw in youtube untill now. Well done. Thank you for your offer!

This is an excellent video. I’m an EE brought up with linear power supplies. Never really understood how a switching supply worked. I do now! Sincere thanks. John G. Hollis, NH, USA

Thank you Professor. I am an aero structures engineer. Highly appreciate your effort and teaching a novice like me.

never imagined such a comprehensive tutorial, so clear, and very basic to understand. you will produce more talented technicians , thank you so much. regards.

@TRXLab

7 жыл бұрын

Thanks for the nice feed-back. All the best and Cheers

@friedmule5403

5 жыл бұрын

joelp villanueva yes it is amazing and what do it even better, is that it is that way in all his fantastic videos! Simply among the top 3 electronic channels on KZread!!

Brother. Your video is one of the best I have watched on the topic. And English is your 2nd language ! Thank you !

@TRXLab

8 жыл бұрын

+Thanasis Athanasi Tanks for your kind words and thanks for watching 73

@Jah_Rastafari_ORIG

4 жыл бұрын

@@TRXLab Also wanted to thank you for your videos; very helpful. If I could just offer one criticism, it's that your pronunciation of 'weight' to the native English speaker is wrong, and my brain gets stuck for awhile (until it adjusts!); I then have to go back aways and re-listen. Kind of like when you're reading and you come across a word you don't know the definition of. You can keep reading for several pages before you realize you haven't comprehended a thing since the errant word... Anyhow, just trying to help; thanks again! FYI, 'weight' is pronounced the same as 'wait'.

I subscribed after watching this outstanding explanation. It's intensely helpful that you used the right testing equipment at the right moment for demonstration. I hope to see more tutorial videos specifically on SMPS repair. Power supply repair never gets boring because they're still heavily used in their basic fashion. Other kinds of electronics is going through an endless revolution that's impossible keep up with. Thank you for this informative video. Hope to see more...

Excellent video Sir! You have covered every single question I had about SMPS, very well presented, scope shots really helped. Vielen dank!

A special thank you Peter for all your videos and all the time spent in doing them. I have expertise in software for 30 years but normally don't get to experience electronics and in the good video representation you can do it in. I want to let you and everyone know that you have made a difference in my understandings and on a business perspective a more dangerous competitor. (Not against you of course).Peter you will see a similar message to Paul but I am glad to present you two are the Best of the Best.('Besten der besten')

@TRXLab

8 жыл бұрын

+Ham4Ham Hi John, thank you very much for the kind word and for the honour! Always happy if my videos of any need! So again thank you so much 73 and the best

thank you very much for teaching us with the scope patterns and diagrams the way you delivered this video clearly shows us better than most other videos i have seen. thank you very much for taking the time to make this video. you are a great teacher.

@TRXLab

7 жыл бұрын

thanks for the kind words

Excellent video tutorial. Nothing beats seeing live traces on a scope and meter readings. I've been debugging the power supply on my TV and that section of the circuit was baffling me until I came across your video. With the knowledge gained from your video, I was able to trace the problem to a faulty regulator on the secondary side that was driving the feeedback pin high on the switch IC, thus disabling it. It all makes perfect sense now. Thanks and keep up the great work!

@TRXLab

8 жыл бұрын

Hi Russ, very good great that you was able to trace the fault down! Thanks for watching Cheers

View in 1.5 speed for a better voice over. Thanks.

@MrRUKidddingMe

7 жыл бұрын

genius ! Thanks

@robotmad

7 жыл бұрын

Brilliant, was becoming very painful to watch LOL

@awaitingthetrumpetcall4529

5 жыл бұрын

ThalesPo, thanks. I'm thinking to myself "Hurry up. Get to the point..."

@ao2528

5 жыл бұрын

Good idea, I was about to quit, then I saw your comment, tried to listen, what a improvement but too late for me because already I almost finished watching.

@johnconrad5487

5 жыл бұрын

hahahaha... thanks I did not know I could do that. helps a lot!!!

Nice lesson on the basics of the SMPS's, Peter. Even though I've been learning about them a few years, I still enjoy watching you explain about them. And thanks for mentioning the grounding issues to help keep people that are newer to electronics from blowing their scopes, or worse.

@TRXLab

8 жыл бұрын

+Robert Calk Jr. Hi Robert, anyway it is always fascinating to deep dive into a topic even for hobby purposes..

@robertcalkjr.8325

8 жыл бұрын

+TRXBench Absolutely. And sometimes we gain more understanding of topics when we learn from different people and various perspectives.

One of the BEST way to make even layman to understand. Hats - off. I really enjoy your pronunciation of each word with a tinge German accent. Vielen Danke. Auf wiedersehen.

@TRXLab

8 жыл бұрын

Thanks for feed-back Krishna, glad that you like my video and my accent lol..All the best and Cheers.

i really liked the way you walk us thru the power supply showing us the wave forms and diagrams. you are an excellent teacher. thank you very much.

@TRXLab

7 жыл бұрын

Thanks for feed-back and watching

this channel is a real treasure Thnk you for your great presentation

Thank you for sacrificing your precious time and resources just to share your valuable knowledge.

@TRXLab

7 жыл бұрын

Thanks for the nice feed-back Dannie! 73

I really like you how you deliver your explanation to all of your videos. Thank you for being there for us beginners. More power to you sir.

@TRXLab

6 жыл бұрын

Thank you Glad that you like the video Cheers

Thanks for a very professional and understandable explanation of Switching power supplies. Look forward to viewing your other video's. Well done.

@TRXLab

7 жыл бұрын

Thanks for watching 73

I've really enjoyed this tutorial, I am not scared so much anymore of switched mode PSUs! Thanks for taking the time to prepare this video. 73, Kostas

@TRXLab

8 жыл бұрын

+Kostas Hi Kostas, thanks for the nice feed-back! I'm glad that the video was helpful. 73

Glad I waited till the end , before the end I was going to ask about noise from switching . Thanks again John

@TRXLab

8 жыл бұрын

+KD0CAC Hi John, yes with a good filter is is okay. 73

Thank you so very much for making this video, I've been trying to get to grips with SMPS for some time, I have seen other videos on you tube, but this is easily the best. And you explained it in quite a lot of detail, getting all this technical information across and at the same time translating it into English without so much as a mistake, Sir I salute you , You have done an excellent job !!! Ray H. ( from the U.K. )

@TRXLab

7 жыл бұрын

Thank you for the kind words Ray! glad that you have a need for my video. All the best HNY Cheers

One of the Best demonstration I have ever seen. Carry on good work. Thanks.

@TRXLab

7 жыл бұрын

Thanks for your feed back Cheers

Switching Power Supplies with Simplified Understanding of its working principal in theory supported with practical demonstration. Great video for hobbyist and seasoned home-brewers as well as for anyone interested in an electronic engineering.

G'day Peter, when you were talking about the U802 cnx82a Optocoupler and the way you explained it. Well done, seeing your Engish is your second language. The last part about the common mode filter this is a real part of QRM on our ham channels. Thank you Peter for sharing these moments with you. God bless you and your family.

@TRXLab

8 жыл бұрын

+Dennis Peake Hi Dennis. thanks for the nice feed-back! Well my English could be a bit better but may get better over the time:^) God bless you Dennis!

One of the greatest video i have watched in my life ....it has clarified everything .....couldnt understand until i saw this video....thank you very much

Informative video. Probably one of the best I came across. Thank you so much Peter!

@TRXLab

7 жыл бұрын

Thank you for the feed-back. All the best Cheers

How did so much of the world end up using 50Hz and the US uses 60Hz? Great video, thank you very much. This was quite a pleasure, and shows an amazing improvement in power supplies.

I love the video and the content. It is very useful information. I am amazed that you have the schematic and the datasheet for your power supply! The ones I salvage are very hard to find any information on. Thank you very much for taking the time to make it.

@TRXLab

3 жыл бұрын

Thanks for feed back

This helps me a lot. Thank you sir and God bless.

this video is well matched to learning students; I feel( at last) as though I have, for the first time in my life, found a vehicle for understanding abstract concepts of electrical circuitry. Please give us more of exactly-the-same deliverance (excellent !) Congratulations.

@TRXLab

7 жыл бұрын

Thanks for kind feed-back Norman! All the best and Cheers

Excellent video, very informative, having worked on various switching power supplies my self I sort of had an idea how they work but never really took the time to delve into them too much, when you are trained to do one job such as setting them up and testing them on a jig I dont think you ever get to appreciate the actual idea of how they work....And yes it is very easy to get a nasty electic shock from one as I have found out on numerous occasions..LOL....Fantastic....Keep up the great vids....73 from the U.K...

@TRXLab

8 жыл бұрын

+gripper021164 Hi, thanks for feed-back. Yes SMPS can be really nasty if you are not careful... Cheers

All my mystery of smps operation cleared after watching this videos. Many Thanks Sir!

@TRXLab

3 жыл бұрын

Thanks for feed back

Einfach clever! Best professional explanation, full of competence special the way you try to share your valuable professional knowledge and long years experience is clear to understand. Keep doing it. You are wished the best too.

Had a question about this subject on a mock ham test, Pete thanks for taking the time to explain 👍

Excellent, basic tutorial. I get the idea of the Switching Mode PS. I wish the ones I com across were as simple as this one.

Mr Carlson's Lab video too was very informative n well presented n made....u guys r really more than good professor stuff !!! Thanks a million !!

@devonwilson5776

3 жыл бұрын

Mr. Carlson's presentation is always gripping and thoroughly educational. I have always enjoyed his mastery of the subject matter. He is genuinely a true genius in the field of electronics engineering. Absolutely brilliant!

Very nice and clear explanation, also your english pronunciation is much better than the native speakers, at least for me. Thank you very much.

@TRXLab

8 жыл бұрын

Thanks for feed-back Patrick Cheers

THANKS PETER! ANOTHER GREAT VIDEO! I bought a swithcing mode supply in the form of a charger inverter for a big sail boat. It was very noisy, so I decided, let's delay the switching noise so it is 180 degrees out of phase and mix that back in so it cancels itself out. IT WORKS GREAT! I am kind of new to the whole ham radio thing and all those fabulous new products engineered to separate us from our money, so I had no idea MFJ and Palstar already made phase inverting noise reduction boxes. I made a linear supply for the bench from a huge buck boost 24/48 volt secondary dry transformer, regulators (zeners) and lots of transistors, to the tune of 200 amps of 12-14 volts of very clean DC. It weighs a tonne but, it's very quiet. The charger inverter will give me 100 amps of 13.6 volt DC power, and off a battery of batteries I can get 25 amps of 120 VAC, "AND" the 100 amps of 13.6 volts. Off batteries that 13.6 volts is as about clean as it gets. . 73s to you and your's!

@TRXLab

7 жыл бұрын

very interesting, thanks for your report and thanks for watching 73

Danke für diese sehr gut verständlichen Einblick.

Thank you very much for a great SMPS master class!!!! I really appreciate it...

@TRXLab

8 жыл бұрын

+Gustavo Contreras Hi Gustavo, thanks for feed-back, glad it was helpful. All the best Cheers

I dont think i will ever come across a simple tutorial like this.. nice work man..

@TRXLab

6 жыл бұрын

Thanks for feed back Cheers

What a great video! Thanks for an excellent explanation.

Thank You for all the information, it help to understand switching power supply!

Nice Work, continue lighting us up

It was a wonderfull n extremely comprehensive explaination of more than the basic working of SMPSs by the very intelligent gentleman although his english was good enough to follow (i think he being a german) it was very clear n highly informative !! A big Thank You to the gentleman !!

@TRXLab

7 жыл бұрын

Thanks for the kind feed-back! All the best Cheers

Very well explained with practical demo. Looking forward for many more such videos. Vielen Dank.

@TRXLab

7 жыл бұрын

Thanks for feed-back! Cheers

another GREAT video from you SIR, thanks a lot for sharing your precious knowledge

@TRXLab

8 жыл бұрын

+MTS no problem you are welcome 73

A very clear, well structured presentation, sincerely thank you very much for your generous contribution. I had an unclear idea about this topic but now its totally clear to my. As far as I know the modern welder machines are based on this same principle and I would ask you if possible a video of this theme. Greetings from México.

@TRXLab

8 жыл бұрын

Thnanks for kind feed back. I'm sorry I'm not in the welder business so I can't do it. All the best Cheers

@juarezvivo-sc2qi

8 жыл бұрын

+TRX Bench I understand, any way thank you.

A very helpful video on understanding the basics of SMPS!

@TRXLab

7 жыл бұрын

Thank you Rijel Cheers

Thanks for taking the time to explain SMPS. I hope to one day be better with electronics than I am at work working.

@TRXLab

6 жыл бұрын

Thanks for watching

Excellent explanation buddy, much clearer than when it was explained to us many years ago. Back then it was all done with a projector and slides, really like the emphasis on Safety as well. SMPSU'S can really bite if you don't treat them carefully.

@TRXLab

8 жыл бұрын

+Andy Gallacher Hi Andy, thank you so much! I'm always glad if my videos are practical. All the best and 73

Often wondered what happens in a switch mode power supply. Thanks for the video.

@TRXLab

8 жыл бұрын

+technos123 Thanks for your feed-back I'm glad that it was of any need.. All the best Cheers.

Awesome my friend.. Another excellent presentation and another one for my Favourites regarding SMPS. Cheers Peter John

@TRXLab

8 жыл бұрын

+orbiter8 (John) Hello John, thank you! Always glad that you like it my friend. Take care all the best and Cheers

ShOcK & AWE clarity. A lesson that will, I'm sure, will be taught 500 years from now. p.s. That 1K 5 Watt resistor seems strangely out of place in a "efficient power supply". But I use to believe that the Electron was a super hero from the 50's. Thank you for the video. You RoCk!

Excellent video, excellent explanation, understandable English more because I am Spanish-speaking. Thank you very much for sharing your knowledge

Amazing video! I am now subscribed, and I cannot wait to see what other videos you have!

@TRXLab

8 жыл бұрын

Thanks for watching and subscribing. Cheers

Great SMPS video Peter!

@TRXLab

8 жыл бұрын

+Mr Carlson's Lab Thank you Paul !

@georgenlklartey9394

5 жыл бұрын

Nice one thanks boss👍👍

@gassanali8667

4 жыл бұрын

A collision of giants on KZread comments section!

@OnlyOne1Dee

4 жыл бұрын

Mr Carson sir how are you? 😊

Thanks very much for this Peter. Taking the mystery out of SMPS's !

@TRXLab

8 жыл бұрын

+Mitchell Smith (KB3GKC) Yeah once one know how they work no problem any more :-) Thanks for watching 73

Excellent video you really know your stuff Use to work on these and its all coming back to me watching this

@TRXLab

8 жыл бұрын

+Craig Rose Hi Craig, thanks for the feed back and for watching! All the best and 73

Respected sir, thanks a lot. one of the best video on smps.

Thank you for an excellent video. I picked up a few things that made understanding SMPSs easier. So many tutorials on this subject are just plain confusing but yours is clear and very informative. Keep up the good work! :)

@TRXLab

7 жыл бұрын

Glad that you like it! Thank you Johnny Cheers

Thank u ☺️ for the videos , i appreciate all the work you do.keep up bro

Hi Peter thankyou for this video after watching this video it gave me the confidence to fix my caravan psu the parts cost £2 i replaced the switching transistors and its running fine thankyou

@TRXLab

7 жыл бұрын

Hi Mikes, good to hear that and congrats for the repair! Thanks for watching 73

GREAT VIDEO on SMPS enjoyed the entire presentation...!!!

Thank you for a most informative video. Well done!

@TRXLab

7 жыл бұрын

You are welcome! Thanks for watching Fred 73

One of the very great videos I have seen about SMPS. Watch at 1.5x

@TRXLab

3 жыл бұрын

thank you

great video~ I know from nothing to now i know everything of switching power supply~ thank you~~

@nspk really my past learning became perfect after watching this video. Great learning experience !! Mechanics having problem to attend SMPS must watch this video.

Thank you for this important lesson !!

Thank you sir, you cleared my all doubts about flyback converter.

Thank you very much Peter for posting these awesome informations

@TRXLab

8 жыл бұрын

+Marcelo Brandão Hi Marcelo, thanks for stopping by and feed-back 73

Very nice detailed explanation,keep on making these nice videos.

@TRXLab

7 жыл бұрын

Thank you Patrick 73

Great video! I am trying to repair smps from an hp spectrum analyser, very daunting but the principles seem the same as you have layed out here.

Das ist eine sehr gute Erklärung von SWITCH-MODE POWER SUPPLY. Vielen Dank Herr.

@TRXLab

6 жыл бұрын

Thank you so much for comment Cheers

thanks for the video, I'm finally starting to get SMPS.

Cool and very descriptive. Thank you!

I haven't seen better explanation for SMPS than yours.Thanks.

@TRXLab

6 жыл бұрын

Very kind Thank you Cheers

If you do work with weak signal RF with any kind of A to D sampling, you'll want one of those "old school" linear power supplies to eliminate the hefty RF noise generated by most switching power supplies!!

@TRXLab

5 жыл бұрын

you are right it always depend on what you are working...

WOW! I now know how switching power supply works! good video men.

@TRXLab

7 жыл бұрын

Thanks for watching Cheers

Higher frequency was used in planes with 440Hz, even before switching power supplies to make them much lighter. Of course switchinh power supplies go WAY BEYOND 440Hz, making them tiny for the power they control! Good video, thank you :)

Great video. Thanks for making it. well done!

@TRXLab

7 жыл бұрын

Thanks for watching

havent watched yet, but i have seen other of his videos and i am sure this will be very informative.

Good video Peter on PWM power supplies, got to you videos via Mr. Carlson's Lab. Thanks Paul.

@TRXLab

8 жыл бұрын

+Chuck Legg Hello Chuck, thank you for the feed-back. Paul is a very nice person. All the best Cheers Peter

Thanks Peter for this tutorial on SWPS. Very well done my friend.Thumbs up :)

@TRXLab

8 жыл бұрын

+The Radio Shop Thanks Buddy. You put up a new video as well. I'm going to watch it later the day! Take care 73

I really enjoyed that, thank you for an informative and very interesting video.

@TRXLab

6 жыл бұрын

Glad that you liked it Francis! Thanks for watching 73

Great video Peter

Such an excellent presentation,explaining very nice... thanks

@TRXLab

6 жыл бұрын

Thank you Emil! 73

Very great video, thank you !

Just came across your video, found it very informative, you now have a new sub👍👍

@TRXLab

5 жыл бұрын

Thanks for watching and sub

Knew about the a long time but had no clue to their working. Now know a lot more. Thank you. Basically its to up the frequency so the transformers can be a lot smaller. Then make use a quite a few ways of protection.Thank too for speaking in English - must be quite a bit harder doing that.

@TRXLab

7 жыл бұрын

That's it. Thanks for watching

Keep going, congratulations. Great datasheet details.

@TRXLab

6 жыл бұрын

Thanks for watching

I am so glad you are on KZread. There are almost no people who understand anything anymore. Bless you. The Arduino cancer has destroyed the minds of so many young people, I sometimes fear for our future. Please keep a clear signal on this band. You are one star in the night they can follow.

@TRXLab

7 жыл бұрын

Thanks for the kind words and for watching Cheers

Great explanation. I like this video.

Thank you for sharing your intelligence with understanding SMPS. Your video has helped me further my life long ambition of understanding electronics. If I can keep this intellect in my mind and make a career, I'll share my success with you or your family. With great affection. ACT Cell.

@TRXLab

7 жыл бұрын

Thank you for the kind words! I really wish you all the best and that you can go your own way! Cheers

Super video Peter! These switching supplies are tiny now, and you can plug one into 100, 110, 115, 120, 155, 220, 230, 240, 250 volts 50 or 60 Hz and it does not really matter. I would not try it with 25 Hz. That stuff is gone now. It used to overheat transformers, and other things. Up until about 20 years ago some parts of upstate New York, and Canada still had OLD 25 cycle mains power from the old Niagara Falls Power Plants. The utility companies wanted to change it to 60 Hz for ages, but back then there were still a lot of old factories with motors that were synchronized to run on 25Hz and the factories said it would cost too much to retool. Most of these Factories are gone, and the work is being done in Asia, Mexico, and the far east. I have been looking at high speed switching to reflect loads onto vacuum tubes to eliminate the need for output transformers. They can even tell what power tubes I am using and adjust the reflected impedance(s). High speed switching....FUN STUFF< AND WELL EXPLAINED MY GOOD FRIEND! Gott Segne 73s KI7AQJ

@TRXLab

8 жыл бұрын

Hi Segne, thanks for this interesting historical information very much appreciated.. Thanks for watching and stepping in. 73