How SMPS works | What Components We Need? Switched Mode Power Supply
ฝัง
- เผยแพร่เมื่อ 9 พ.ค. 2024
- $2/5pcs 2Layer & $2/5pcs 4Layer PCBs: jlcpcb.com
🔥Learn how the switched mode power supply works, the parts we have and what will each part do in the circuit. Protection and EMC filter, full bridge rectifier, primary filter, power MOSFET, transformer and secondary filter.
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🔀LINKS
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SPWM Tutorial: electronoobs.io/tutorial/196#1
Part list: not yet...
Schematic: not yet...
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#SMPS
#supply
#tutorial - วิทยาศาสตร์และเทคโนโลยี
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Hey electronoobs you can CREATE SHADES USING SIERPINSKI'S TRIANGLE AND YOU SMART PHONE th-cam.com/video/DMYn_0uTVB8/w-d-xo.html same as I have done
Something is strange here. At time 8:30 in the video its showing 2, 560uf @ 200V. After the bridge the DC voltage will be way higher than the input of 230vac, so how can those caps be so underrated?
@@ugetridofit there are 2 capacitors in series so 400V
Can you give me its circuit diagram
Bro why did we use high frequency transformer,cant we just take output from mosfet and connect it to secondary filter?
I honestly can’t imagine how much time and effort must have gone into making these videos man. Appreciate it!
Time does not matter when you doing something interesting 👌👌👌😍😍😍
Now imagine how much efforts it would take to produce an smps
The EMC filter is also really important to make sure the power supply doesnt make interference on the line
also know as line filter, if your speaking of filter at the input side.
Dark Angel - Electronoobs is wrong here and you are right. The EMI/EMC filter is primarily for filtering out the conducted emissions *back* into the source supply.
@@Samuel-km5yf thanks are you an expert on it btw?
Dark Angel - I’ve designed, built and tested satellites for over 15 years and have SMPS designs currently in orbit above Earth... so, yes? You are obviously well educated yourself because many EEs I’ve worked with would not be able to tell me what the input filter of a SMPS is primarily for 😉
@@Samuel-km5yf well in that case. Im working on my own smps right now maybe we can have a chat?
I am an electrical engineering student, and learn more from your videos than from university :((
Well I'm happy that you learn from.my videos :)))
Well then you have a Problem. The video ist good but also very very Basic. I would recommend the TH-cam Channel Diode gone wild cause He also goes Info the math an Transformer Design, an some different Typs OS SMPS (flyback ....)
@@felixwurm1467 he doesn't have any problems. This is more electronics engineering than electrical engineering stuff. And even in Electronics engineering they won't give you these clear explanations as shown here. They will teach you what a buck and boost converters are at and advanced level but will not teach you what a SMPS is.
Zsigmond's ,
Bcz you never attend class lectures !
Good job bro ✌️
This channel is amazing and underrated. Somehow you manage to read my mind and teach me exactly the things I need and want to know. Please keep up the amazing content!
Probably one of the most indepth videos I've seen for SMPS that simplifies it :)
Best explanation of how switched mode power supplies work I have seen anywhere. Clear, concise and explained in terms that a layman can understand. Thank you, just what I had been looking for.
I've been in the business for quite a while and can honestly say this is a very well presented explanation. Not too technical but accurate enough and to the point. I'd have no hesitation recommending your material to anyone that wanted to learn. Well done
Great video - I have watched quite a few videos on SMPS, this is the first where I feel like I am getting an actual grasp on them from the ground up.
This has to be the best description of power supplies design I have ever seen you have a new follower
Best smps explanation I’ve found to date. You described things nobody else has. Thank you
The video is very detailed and have niche explanation of each block step by step... That's amazingly made and appreciate your peculiar points for the each block from application perspective
The effort you put in and the amount of time you have spent on making the video is really commendable. You are doing a really amazing job!!
The most comprehensive yet easy to understand SMPS video I have seen. Well done!
This was such an amazing video, so many people have tried explaining this, but your animations and examples were so effective. Thanks!
Thank you so much for this video! Please don't stop creating such content, humanity needs it.
Great video!
Just a little thing I want to mention, at 15:34. The control circuit is on the low voltage side, but the power transistors are still on the high voltage side, so you need a way to controll them withouth loosing your insulation. That's the purpose of that smaller transformer. I'm pretty sure that it is used to control the power mosfets from the low voltage side. I asume that the main transformer have 4 pins on the left, two pins for the main HV winding, and two for an auxiliary winding, used to power up the control circuitry (and in some other desings, an auxiliary winding is used as a voltage feedback instead of using an optocoupler, as its voltage should be more or less, proportional to the output winding voltage).
If you watch close, near the small transformer, there are two small transistors used to drive the primary side, and on the other side, there is a bunch of capacitors, resistors and diodes used to drive the gates of the power mosfets; those are needed to reduce the time they take to turn off, and therefore, to reduce the power loss. And two diodes to form a snubber network, to protect the transistors against reverse high voltage spikes, due to commutation.
You can tell where is the division between high voltage and low voltage side, by looking at the bigger gap that separates the copper traces from one side to the other.
Been learning about SMPS for years. Watched a lot of video's on them. This one is the best I have seen so far Thank You.
What an amazing video! Thank you for putting in all the work to make this video so clean and concise.
Take care!
That recap/summary at the end was amazing. Great video man.
Your channel as well as Learn Electronics Repair are my absolute favorites. Everything is always so clear!
Thank you for this video! It will make more sense in time, as I get a better grasp of the components, and re-watch this video over time, but this is so appreciated to be able to have even a basic understanding now.
Explaining the use of each component is brilliant. It's how I like to learn and it's how I look at circuits. Thanks. 👌
This is the best explanation of SMPS I've seen anywhere.
Amazing job in laying out the material so clearly and logically that it is simple to follow and even fun. Thank you!
Excellent, I am learning all the time and your explanation is aimed at just the right level for me. Gives me a stepping stone from which to learn more. Thank you.
this is a very informative video. i love the style of delivery and the step by step approach. I try to do that on my channel too.
Keep up the great work.
This is the kind of videos we want. very Informative with very good graphical explanation
One of the best electronic learning tutorials I have ever seen!!!!!!!!!!! thank you..
This is my third video today on switch mode power supplies. It was most informative. As an English (American) speaker, I had no problem with the verbal instruction, I understood you very well. As a student, I deeply appreciated the waveform transformations across sections. Of the power supply. A lot of repair videos assume the viewer is familiar with how a SMPS works; I was not (and wondering for years): you explained it very well. You focused on the main components without getting distracted by how individual capacitors, zener diodes, and resistors could affect performance. If I were to repair an item, I would need that information, but BEFORE I need to make the repair, I need the information you present. Thank you very much.
You are really a genius. I usually don't comment. But today I feel the need to leave 2 or three words. As I am watching, I am sitting with my 4n charger open trying to figure out why there are so much components. You nailed it.
Thank you very much for this excellent video which allows, with average knowledge in electronics, to approach the SMPS without using abstruse terms like forward, buck, etc... (this terminology is obviously not to be denied but is not needed to understand how it works). Your course is very educational and icing on the cake, it is excellently illustrated with videos with ad hoc comments.
This is really amazing. Your video is the best about SMPS in YT.
Thank you for the section by section details with animation, excellent video!
Best video on power supplies on this site, for sure! Well done and thank you!
This Video was so helpful especially during this time of online learning where I'm unable to get any hands on experience with these stuff but your video really helped thank you!
perfect tutorial. very clear. i show your demonstrations in my classes
Very good video. Excelent to remember a few concepts. It was surely a lot of work so congratulations for it!
Really helpful thanks. Best explanation I've found for smps. Thanks for taking the time.
Magnifico vídeo explicativo!!!... la info gráfica del las distintas etapas, funcionamiento y el recorrido de cómo actúa es didácticamente perfecto!!!... menudo trabajo!!!... gracias por compartir conocimientos
As always, the best video.... Man keep up the good work... I always get excited for your video
Thank you! That is definitely the best video on SMPS! 👍
Very well done! On the bigger PCB that little transformer is a Gate Drive Transformer, it used to have isolation from the main FETs in case they short (example, from gate to drain sending tail voltage straight into the gate drive network). However the transformer allows galvanic isolation between which allows the pwm controller and gate drive network to (generally) be preserved during a fault. Those transformers are generally gate drive only and those little transistors near it are for driving the GDT. Coilers use GDTs (same as I) for Tesla Coil gate drivers with dedicated gate drivers such as the UCC3722 or TC4420 gate drivers.
FINALLY!!!! Someone who could explain these to me in a way i could understand!
Brilliantly Explained with seriously impressive animations🧡 i loved it
Great detailed explanation of how a SMPS is designed and works! Excellent video!
Thank you :)
Best ever explanation of SMPS...really a great job...keep it up
this was awesome explained!! all questions in my understandig answered!! THANKS!
Super great video, just the thing that I always wanted to learn but never had a chance. Thanks!
i was waiting for someone to explain why high frequency transformers are smaller but can handle the same power as the low fequency one with iron core thank you 💙💙
Thanks for your short and explanatory narrative🙏✋
Excellent information with in-depth details, made understanding easy. thank you
Good job, once again a great video! Sometimes a power factor correction (pfc) is applied to avoid harmonics.This would certainly be an exciting topic for another video ;)
I could cleared out my confusion on how potentio-opto-ic work together for attaining a constant output voltage . many thanks for well explanatory vid .
Awesome! Great explanation. I have a few I’d now like to try to troubleshoot. Videos like this really help move the world forward.
Great !!! Your explanation method is A to Z , You explain all steps and working principle of all components !!! Thanx!!!
This explained a lot to me, thanks for high quality video.
Thanks for this video man I was just building a tl494 based SMPS 😃
Finally your videos started showing up on my suggestion page. :-)
Wonderful explanation, you are sure a great teacher. Thank you so much.
Thank you for another anazing, informative video. On the topic of SMPS, it would be nice to see a tutorial on building the transformer for feed-back, feed-forward, push-pull. I remember that in university we've learnt the control of SMPS, but but the design.
Really apprechiate. I had no idea how SMPS works and now I fully understand it
I fresh discovered your channel, your videos so helpful. Thank you for all
Super explanation. Thanks for sharing this hard work!
Hello man, this video was very useful for me. Everything had been clearly explained.
WAY TO GO
This was a very good review. I think that you got me ready for my job interview.
Frank
Thank you dear. The best video I have seen explaining SMPS 👍👍
Excellent video tutorial. Thank you and appreciate for the hard work and effort you have put.
Awesome ! Please make more of these types 👍
Man this video is so easy to understand... Good job...
You are talented and hard working person. Thank you for making so informative videos
A very respectable work, thank you for the excellent Demonstration.
Excellent explanation and graphics. Thanks.
on a whole it was an extraordinary video , cuz it was useful at the right time , (based on viewer situation) , it helped me a lot , very informative. looking forward to seeing more videos in electrical involving control systems techniques of circuit designing.
Very well done. Excellent graphics as well.
Very well explained.
Thank you.
Excelente explicación. Tal vez la mejor que encontré. Please keep the good work.
Awesome! Thank you for sharing your knowledge!
This is really a GREAT explenation - thank you!
Beautifully explained Love it!
clearly explained as you always do, learnt a lot today thank you
Hi, friend. Watch my video!
th-cam.com/video/2Qr6Jcm8wbA/w-d-xo.html
Dude, I appreciate for your work
Thank you for creating this video i learned alot out of it
Superbly Explained, keep up the good work👍
Thanks for creating this kind of videos
Thank you for this very brief video.
Great video bro, you spent much effort on this. You're better than my lecturers. Anyway, I think the DC output voltage of the output LC filter should be controllable by changing the pulse width of the signal. So, the DC output should change due to the change of duty cycle of the signal. You might mean it, but you misrepresented it in your video. Great job anyway bro 🔥
thank you for teaching i honestly learned a lot from this video.
That was a great video you us by simplifing and that was pretty understandable video
Thank you 👍🏻
Amazing content, very well done. Thank you!
That's was fantastic explanation ,am fully satisfied .thanks very much
pretty good- the real pleasure is too look into a high performance telecom rectifier where multi phase intermediary transformers are used to achieve 90+ percent efficiencies!
Perfect and easy explanation
Really clear and helpful explanation
Thank you 😊 soo much great information 🤗🤗 after long time great video 😘😘😘
Man you explained it reall really ver simple.....i m really ver happy to learn & get it quickly
Absolutely perfect. Thank you
Thank you so much for explaining actually real time circuit
Great Sir
Your presentation and explaination are very valuable.
Thanks.😍😍😍😍
Great video! I'm new here and I've seen all the Great Scott, ElectroBoom, Andreas Spiess, ect and I think you're one of the greats just like them and I'm going to get all caught up, sorry I've been sleeping on you.