I spent hours trying to get my head around buck converters the other night and now you've explained it completely in five and a half minutes. Great job, thanks!
+Carl Alm Yeah same happened with me. I had my project ready but i accidently used adjustable version with no feedback so jumped back to 7805. Now i understood my mistake. Great work +GreatScott!
the simple way to think about it is that, at high frequencies, the average voltage on one side of an inductor will equal the steady voltage on the other side.
Fast, efficient commentary, nice use of oscilloscope to demonstrate effect of each component and components used named and specified. Beautifully done! Couldn't be better.
I love your ways and methods of teaching. Wish I had a professor like you during my Electronic Engineering days. Short Crisp and well edited videos. Full of information and practical know how... Thank for sharing your knowledge...
I saw this video a couple weeks ago while learning more about electronics while knowing Basics. I understood parts of the video but a lot I didn't. After going through many more of your videos and other peoples videos I came back to this and understood it perfectly. So if you were like me and did not understand everything from this one video, don't worry and just go look through more of his videos and other video that explain other electronic component uses and some theory and come back after a while and you will understand a lot better. So thanks for the education GreatScott!
I didn't know much about electronic, but now I have watch your videos in about 5 months and I learned something. Thank you Scott for making UA-cam a better place (:
didn't understand inductors fully in my education, but with the scope waveforms everything is crystal clear, now kinda like inductors amazing component, best explained ever.
when I first started watching your videos I could barely understand anything............but now I see a huge improvement in my understanding of electronics........ thanks man!!
Great explanation, I really like how you added one component at a time then explained why you added it and what it does to the circuit, most tutorials I've found don't really go into detail on why you need an inductor or a high switching frequency as an example, Thanks.
I have legit learned soo much from watching your videos over the years , I had no idea I was learning as much as I was , until I found my self predicting the next components you where gonna use ... I have no formal education on electronics , just UA-cam and tinkering my self
I love these theory videos that explain a concept. You're incredibly good at it. You're like the hobbyist version of the "The Great Explainer" Richard Feynman.
I tried to understand switching converters for years without much success... This video finally cleared me a lot of things. Still some doubts on how the voltage feedback works but thanks for this great job
Great video! One of your best yet. haven't found many short and to-the-point DIY buck converter videos on UA-cam. They're usually split into 5 parts and never get around to building the circuit.
you are just awesome man! just perfect. I am a student of electrical engineering in Pakistan (Asia). But unfortunately, we aren't being taught these things here. Just bookish crap. I wish I could work with you. I make small projects in my house. I love it. but I will die to learn all the knowledge you have got.....! love you sir!
May I say thank you for your wonderful video. I don't know much about oscilloscopes but may God keep giving you the tools you need to be able to teach us. Thank you very much
I am so new to building in this fashion, but I personally wanted to say TY for being So Descript about parts used and thee list of parts and where to get them Again THX So Cool Man!Keep it up And Please Make More Videos!
Eddy Fuchs HE DID ? WHERE ARE THESE MAGICAL PLACES WHERE YOU GET FREE 5000€ SCOPES ??? I don't even own a fucking working dishwasher and i'm busy drooling over these expensive things :o
BillTheBox Yep, Keysight got a generous giveaway month recently, one scope every day, one super scope every week and one super scope for many youtubers
I always learn something from your videos, I just wish I would do 1/100 of what you can... I lack good solder skills and end up burning smaller parts rather than solder them... Cheers Mate, great Video as always....
For those of us who do not want to DIY build and want a high efficiency step-down converter, can you recommend a buck convert for input: 12v output: 9v (application is for a 12 v LED light to reduced its output by supply it using 9v)
Perfect. Exactly what I was after. I'm currently building my own LED strip light driver and controller. Got an esp32 for wifi and lots of pwm. Using some logic level mosfets in there for switching the 12v but I want to power the entire board from a single 12v DC jack. Need to add a buck converter onto the board.
I did this for a living in the '80's, but not as much power supplies (yeah, I did those) but audio amplifiers. I designed both. I'll tell you once you get into distortion and failures (especially in the '80's when components weren't as good as they are now), it sucked! Our company was successful at making switch-mode amplifiers, but customers never wanted to pay the extra cost of efficiency. They were happier with big fat heatsinks. Guess that speaks for how industry typically works.
Your videos are always good, I notice most of the time Europeans are more intelligent. On many American videos I notice many things repeated that are not correct and many people doing things wrong. Most of the time when I find a European doing it they clearly have an understanding of what they are doing and add no nonsense.
I see you have a 500mhz oscilloscope. Oscilloscopes are cool. I been a technician for over 40yrs. I purchased a Dual trace Sencore. Waveform anylyzer reburbished. For $1,000. Retail on one of these is $3,450. It has a bandwidth to 65mhz. Usable to 100mhz. The scope you are using looks awesome. Nice video.
I am a complete rookie trying to figure out how to step down voltage for my 12V camper van lighting. Sounds like a buck converter is what I need. Why is it better than just using resistors? Thanks for making this video.
Dude you do a great job of breaking these things down, explaining them. Would/could you consider doing a vid on self excited generator. Think you’d find it interesting. Thanks again
Thank you very much just what I needed :) I used an arduino to open/close my car using my phone (new project in your channel??) but my problem was the power I did not want to use linear voltage regulator so I looked into the buck converter and they are awesome !! thank you for your video it makes my sunday better. I am AbdulRhman and I am from Saudi Arabia :)
Scott, you came soooooo close to what I liked to learn. Make my own buck converter. And than you switched to the lm2576. It can only do 1amp? rated for 3amp? and max 45 volt. I wanted to build a buck converter for my e-moped since the original dc to dc converter failed me. That EV has a max 54 volt battery and I need a 12 volt output that can handle 120 watts. I have FQP27P06 mosfets and some bigger inductors from an atx power supply and a few higher voltage volt caps. But with out the feedback part the arduino solution is not good. Most examples go up to 35 volts and only a few amps. I need 42 and 60 volt solutions but it seems you have to make those yourself.
Very good informative video.I use the MP1584EN SOP 8 in my designs which is half of the cost , which is a key factor when you are running production.Great channel.
The video is good. Sir, can you explain how to calculate the inductor, frequency & resistor values? It will enable us to customize our designs . A favour which will be greatly appreciated by many followers of your channel . Even if you guide us to use any particular literature "to understand it all", it will be a great favour!. That apart, your videos are really well made with a live video analysis on exotic & classy equipment to prove your point & understand things easily. Appreciate it wholeheartedly!
Damn, that Keysight scope, one of those days I'm going to earn one. For now I am drinking from a Keysight mug signed by Daniel, not too shabby either haha
hey I did this, Did the adjustable for 5V 2.04i fast charger. Beat most brand chargers on the market. :) I notice they also make a 5 Amp VRIC HOWEVER.... im back as I knew you did the " a lot of parts" at the start, which is what I need. only one other thing was the Pfet driver. ( i have to use a higher power one) Knowing how to and seeing how to makes my life easier.... I'm doing Solar project..
Do you think you would make a version of this video but for boost converters too? I found this quite helpful but it seems half done without covering both buck and boost converters. Other than that, good job on the video; I found it easy to understand.
Am I the only person who wanted to see him actually make the arduino logic to provide a stable output? I know its complicated but that would be an extremely cool learning resource!
Can you please make longer videos (like 10 or 15 minutes) In this case i would be interested in seeing how you completed the arduino circuit with a feedback, where you connected your probes or you probing the LM final circuit Great and really simple to understand videos anyway!
I can understand! I was just saying my impressions maybe you can go with a style more like EEVblog, sometimes taking longer shots with just you talking and explaining things I can really see all the work you put after these great videos so feel free to do what you think is best for you and also for all the other viewers
you make some of the most awesome videos about electronics on youtube...... I admire you ..but can u do a video about CNC router machines . It would be great help
How did you get the high side of the duty cycle to shut off the P-Channel MOSFET when it's source was connected to 12v? The arduino's PWM output switchs between a connection to ground and a 5v supply from the regulator. I tried the exact same setup and can't turn the MOSFET off because I'm assuming than even during the high side of the duty cycle, the pull-up resistor is still dropping the 7v difference between source and the PWM output.
I'm no expert on this topic but I did read a caution about using buck converters in projects that use RF because the coil in the buck causes ripples which can interfere with RF.
hey Mr Scott great video as always but I might recommended that you would complete the arduino buck converter but although a very nice high quality project keep up the good work
I spent hours trying to get my head around buck converters the other night and now you've explained it completely in five and a half minutes. Great job, thanks!
+Carl Alm Thanks for the compliment ;-)
+GreatScott! can you make a tutorial for DIY FLYBACK control by PWM? please
+Carl Alm Yeah same happened with me. I had my project ready but i accidently used adjustable version with no feedback so jumped back to 7805. Now i understood my mistake. Great work +GreatScott!
@@miguelfierrospena6758 It's basically the same, but they are current controlled. That's good because they do limit current well.
the simple way to think about it is that, at high frequencies, the average voltage on one side of an inductor will equal the steady voltage on the other side.
Fast, efficient commentary, nice use of oscilloscope to demonstrate effect of each component and components used named and specified. Beautifully done! Couldn't be better.
I love your ways and methods of teaching. Wish I had a professor like you during my Electronic Engineering days. Short Crisp and well edited videos. Full of information and practical know how... Thank for sharing your knowledge...
I saw this video a couple weeks ago while learning more about electronics while knowing Basics. I understood parts of the video but a lot I didn't. After going through many more of your videos and other peoples videos I came back to this and understood it perfectly. So if you were like me and did not understand everything from this one video, don't worry and just go look through more of his videos and other video that explain other electronic component uses and some theory and come back after a while and you will understand a lot better. So thanks for the education GreatScott!
Merci. Now you're even GreaterScott because of the French subtitles... Thanks to you and to whoever devoted to do it. It's just perfect.
I got interested in electronics due to your videos!! Thank you so much! I'm now building an automated robotic arm! :)
You should build a electric car! :D
I didn't know much about electronic, but now I have watch your videos in about 5 months and I learned something. Thank you Scott for making UA-cam a better place (:
didn't understand inductors fully in my education, but with the scope waveforms everything is crystal clear, now kinda like inductors amazing component, best explained ever.
when I first started watching your videos I could barely understand anything............but now I see a huge improvement in my understanding of electronics........ thanks man!!
+Sumit Aggarwal Awesome
+Sumit Aggarwal I agree! Great video! Thx GreatScott!
Great explanation, I really like how you added one component at a time then explained why you added it and what it does to the circuit, most tutorials I've found don't really go into detail on why you need an inductor or a high switching frequency as an example, Thanks.
+vgamesx1 yea defintiely very well structured videos!
I have legit learned soo much from watching your videos over the years , I had no idea I was learning as much as I was , until I found my self predicting the next components you where gonna use ... I have no formal education on electronics , just UA-cam and tinkering my self
I love these theory videos that explain a concept. You're incredibly good at it. You're like the hobbyist version of the "The Great Explainer" Richard Feynman.
Definitely the best explanation of how the various parts contribute to the buck converter, that I've ever heard.
I tried to understand switching converters for years without much success... This video finally cleared me a lot of things. Still some doubts on how the voltage feedback works but thanks for this great job
thanks for the oscilloscope portion , it was helpful to see why we need better regulation for sensitive projects
To novices who are scared of Switched-mode your explanation made things really clear and easy to understand.
Great video! One of your best yet. haven't found many short and to-the-point DIY buck converter videos on UA-cam. They're usually split into 5 parts and never get around to building the circuit.
GS..I used to know IC chip names by Heart and By the Family...watching your channel has brought back the inner geek in me.
Ofcourse I go searching for a good video to diy and it's a great scott video as usual. Keep up the good work and helping the world with knowledge
amazing and beyond my comprehension at around 4:25. Awesome video. I am just a beginner so it is good that I stayed with it for that long.
you are just awesome man! just perfect. I am a student of electrical engineering in Pakistan (Asia). But unfortunately, we aren't being taught these things here. Just bookish crap. I wish I could work with you. I make small projects in my house. I love it. but I will die to learn all the knowledge you have got.....! love you sir!
May I say thank you for your wonderful video. I don't know much about oscilloscopes but may God keep giving you the tools you need to be able to teach us. Thank you very much
I see you doing these things and it sparks my interest in studying this field. It seems to be great and fun to Learn how electricity works
Hi great scott! I am 14 years old and as usual it is again an awesome video. keep up the good work. GREETINGS FROM INDIA
the terminator is also an electronics wizard! who knew!!!... great job keep it up
Very nice buck SMPS tutorial. Short and clear. Right on point.
I am so new to building in this fashion, but I personally wanted to say TY for being So Descript about parts used and thee list of parts and where to get them Again THX So Cool Man!Keep it up And Please Make More Videos!
What happened to "Let's get started"?!
Lol
+barnstormer322 I tougth the same!
+barnstormer322 I like it more than "lets figure it out!"
yeah, bit less of a mouthful :L
barnstormer322 And sounds better with his accent
That's a REALLY sexy scope
edit : also REALLY expensive, that's a solid 6 months of rent xD
+BillTheBox He got it for free :/
Eddy Fuchs HE DID ? WHERE ARE THESE MAGICAL PLACES WHERE YOU GET FREE 5000€ SCOPES ???
I don't even own a fucking working dishwasher and i'm busy drooling over these expensive things :o
BillTheBox
Yep, Keysight got a generous giveaway month recently, one scope every day, one super scope every week and one super scope for many youtubers
Eddy Fuchs when and where did this happen ?
BillTheBox
In our known Universe in the Milkyway in our known sunsystem on earth (you're not dreaming) and I think it was this March
Your handwriting is awesome
250000 SUBSCRIBERS!!!! congratulations!!!!! great(scott) work!
I always learn something from your videos, I just wish I would do 1/100 of what you can... I lack good solder skills and end up burning smaller parts rather than solder them... Cheers Mate, great Video as always....
I use LM317 it's been 3 year..
Very good regulator.
I didn't know about this LM2576. I'll try it.
Thank u.
For those of us who do not want to DIY build and want a high efficiency step-down converter, can you recommend a buck convert for input: 12v output: 9v (application is for a 12 v LED light to reduced its output by supply it using 9v)
I know I'll find an answer when I'm searching a subject & I see a GreatScott video in the results!
Perfect. Exactly what I was after. I'm currently building my own LED strip light driver and controller. Got an esp32 for wifi and lots of pwm. Using some logic level mosfets in there for switching the 12v but I want to power the entire board from a single 12v DC jack. Need to add a buck converter onto the board.
I have no idea what he's talking about every video. But for some reason I still watch the videos xD
After watching this about 10 times I actually understand this properly
I did this for a living in the '80's, but not as much power supplies (yeah, I did those) but audio amplifiers. I designed both.
I'll tell you once you get into distortion and failures (especially in the '80's when components weren't as good as they are now), it sucked! Our company was successful at making switch-mode amplifiers, but customers never wanted to pay the extra cost of efficiency. They were happier with big fat heatsinks. Guess that speaks for how industry typically works.
Cool, this is the first time I really understood how switch mode PSUs work. Keep up the Great Work :)
Your videos are always good, I notice most of the time Europeans are more intelligent. On many American videos I notice many things repeated that are not correct and many people doing things wrong. Most of the time when I find a European doing it they clearly have an understanding of what they are doing and add no nonsense.
Wow, that oscilloscope looks SUPER cool. I wish i could afford one of those for my silly projects.
Gratz on that killer oscilloscope! I already miss the Rigol... but who can argue against a $13000 piece of equipment :)
Fantastic video - thanks a ton !! Love your quick paced; well thought-out content approach; and perfectly edited style !!
again...... no idea what you're talking about, but I liked the video. You're very good.
I see you have a 500mhz oscilloscope. Oscilloscopes are cool. I been a technician for over 40yrs. I purchased a Dual trace Sencore. Waveform anylyzer reburbished. For $1,000. Retail on one of these is $3,450. It has a bandwidth to 65mhz. Usable to 100mhz. The scope you are using looks awesome. Nice video.
You are a master of movie editing!
You are a master of mustache editing!
big fan of you and your way of work and let us learn. thumbs up
Simply genuis thanks for all your videos yr friend from morocco
I am a complete rookie trying to figure out how to step down voltage for my 12V camper van lighting. Sounds like a buck converter is what I need. Why is it better than just using resistors? Thanks for making this video.
Dude you do a great job of breaking these things down, explaining them. Would/could you consider doing a vid on self excited generator. Think you’d find it interesting. Thanks again
damm!!! this man knows what he is doing ****thumbs up (y)
Thank you very much just what I needed :)
I used an arduino to open/close my car using my phone (new project in your channel??) but my problem was the power I did not want to use linear voltage regulator so I looked into the buck converter and they are awesome !!
thank you for your video it makes my sunday better.
I am AbdulRhman and I am from Saudi Arabia :)
Nice, the old intro. I like it.
Scott, you came soooooo close to what I liked to learn. Make my own buck converter. And than you switched to the lm2576. It can only do 1amp? rated for 3amp? and max 45 volt. I wanted to build a buck converter for my e-moped since the original dc to dc converter failed me. That EV has a max 54 volt battery and I need a 12 volt output that can handle 120 watts. I have FQP27P06 mosfets and some bigger inductors from an atx power supply and a few higher voltage volt caps. But with out the feedback part the arduino solution is not good. Most examples go up to 35 volts and only a few amps. I need 42 and 60 volt solutions but it seems you have to make those yourself.
Very good informative video.I use the MP1584EN SOP 8 in my designs which is half of the cost , which is a key factor when you are running production.Great channel.
It is a very good video, very useful with great explanation. Keep up this quality and I can't wait to see your upcoming episodes.
I learned that ICs are really helpful by simplifying your circuits lol
I looove your accent, handwriting and brain.
#GOAT
The video is good. Sir, can you explain how to calculate the inductor, frequency & resistor values? It will enable us to customize our designs . A favour which will be greatly appreciated by many followers of your channel . Even if you guide us to use any particular literature "to understand it all", it will be a great favour!. That apart, your videos are really well made with a live video analysis on exotic & classy equipment to prove your point & understand things easily. Appreciate it wholeheartedly!
Thanks for sharing this video and information. I especially appreciate having learned something new.
an step up converter will seem like the next video i will liked
Amazing explanation, You are Great Scottt!
Greetings from tel aviv ,israel
I love your videos ,
keep up the good work .
Such an excellent teacher, amazing videos
Thanks mate :-)
please please please boost Coverter next!
Damn, that Keysight scope, one of those days I'm going to earn one. For now I am drinking from a Keysight mug signed by Daniel, not too shabby either haha
Really nice, think I'll use this in my next project instead of a 7805
Him You definitely need to make a video about piezoeletric units, I think that they are awesome, I like so much your videos!!
Well done. Now I better understand how buck converters work.
This was the tutorial I needed, thank-you!
hey I did this, Did the adjustable for 5V 2.04i fast charger. Beat most brand chargers on the market. :) I notice they also make a 5 Amp VRIC
HOWEVER.... im back as I knew you did the " a lot of parts" at the start, which is what I need. only one other thing was the Pfet driver. ( i have to use a higher power one)
Knowing how to and seeing how to makes my life easier....
I'm doing Solar project..
Hi. I thought you had already made a video about it, but I think it was Afrotechmods. Anyway, well explained. regards
Proyectos LED wow, el único lugar en el que no esperaba verte...
Juan Sambucetti exacto
Great, simple explanation (this guy is way smart), thanks! (And saved me @ 2:15 from destroying my SENSIBLE electronics. LOL.)
When did you get that new oscilloscope?!?
+AL_O0 ᶜᴼᴹᴹᴬᴺᴰ ᴮᴸᴼᶜᴷ ᴬᴺᴰ ᴿᴱᴰˢᵀᴼᴺᴱ Around 2 months ago.
+GreatScott! Really? I didn't notice it!
+GreatScott! But 10.000€+, isn't that quite expensive? xD
Po130
Keysight sent it to me to support the show. Follow me on social meda, I posted it there a while back.
+GreatScott! Urgh, got me. Shame on me. Will follow you ASAP! And thanks for the fast reply! :-)
Uber explanation!! short and precise with scope showing signals! Thanks "GreatScott".
Spent the whole video drooling over that oscilloscope.
I understand.
I would be unable to understand all subtitles by myself thanks so much ! 😎
Do you think you would make a version of this video but for boost converters too? I found this quite helpful but it seems half done without covering both buck and boost converters. Other than that, good job on the video; I found it easy to understand.
+BoomBrush Boost will follow
+GreatScott! A booster from 3.7V to 5V :D
Please do a boost converter next! This was awesome!
Am I the only person who wanted to see him actually make the arduino logic to provide a stable output? I know its complicated but that would be an extremely cool learning resource!
Can you please make longer videos (like 10 or 15 minutes)
In this case i would be interested in seeing how you completed the arduino circuit with a feedback, where you connected your probes or you probing the LM final circuit
Great and really simple to understand videos anyway!
+Scarry Polpetta Sadly the length of this video in this style is the maximum I can produce in a week.
I can understand!
I was just saying my impressions
maybe you can go with a style more like EEVblog, sometimes taking longer shots with just you talking and explaining things
I can really see all the work you put after these great videos so feel free to do what you think is best for you and also for all the other viewers
@@greatscottlab Sir can u pls provide me with the arduino sketch which u have used with feedback
I think of them as a solid state DC to DC transformer. They make a lot of surplus power head adapters usefull.
Just supported the patreon, liked all videos and subbed
you make some of the most awesome videos about electronics on youtube...... I admire you ..but can u do a video about CNC router machines . It would be great help
How did you get the high side of the duty cycle to shut off the P-Channel MOSFET when it's source was connected to 12v?
The arduino's PWM output switchs between a connection to ground and a 5v supply from the regulator.
I tried the exact same setup and can't turn the MOSFET off because I'm assuming than even during the high side of the duty cycle, the pull-up resistor is still dropping the 7v difference between source and the PWM output.
Like Jimmy Hendrix... You're a left handed mother f*cking genius. Great video mate. Thanks.
GREAT TUTORIAL AND DEMO...... GOOD JOB.....
Very cool! It's perfect for my solar-powerbank project!
Beautifully explained.
I'm no expert on this topic but I did read a caution about using buck converters in projects that use RF because the coil in the buck causes ripples which can interfere with RF.
How do i know what coil i need to convert 30-42v to 5v and about 2a
Thank's for your response
hey Mr Scott
great video as always but
I might recommended that you would complete the arduino buck converter but although a very nice high quality project keep up the good work
thanks! i needed it hahaha i was building an rc hand launch glider and the lipo was 7.4v, so i needed a 5v ubec.
That was beautiful. Inspiring. To the point. Thankyou!
Che forte che sei !!
Grate video Scott and Happy New Year
THAT IS AN AMAZING OSCILOSCOPE!! ♥
Awesome video, like always. Greetings from COlombia! :D
Wow you have an KEYSIGHT MSOX3054T oscilloscope! Jesus, that bad boy costs like 15.000 $
I was just thinking the same right now
That's why he mentioned his patreon account at the end 🙂
It seems so beautiful isnt it :)
Great insight into buck converters. Well done !!