Every Component of a Linear Power Supply Explained (while building one)

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  • Опубликовано: 21 дек 2024

Комментарии • 686

  • @bradley9856
    @bradley9856 2 месяца назад +450

    Very interesting, you've somehow managed to get electrical engineering into my thick mechanical engineering skull with these videos

    • @rowanballinger3690
      @rowanballinger3690 2 месяца назад +19

      I am the opposite I find mechanical engineering so confusing and amazed how you make gears and leavers work especially when small and complex. But I look at electrical thing I get it. I’m a plumber but love electronics, but struggle with mechanical stuff.
      I think we all just have our brains wired a certain way

    • @jimmy_jamesjams_a_lot4171
      @jimmy_jamesjams_a_lot4171 2 месяца назад +7

      Me too, until I stumbled upon a woodworker who’s channel is called JSK projects, I’ve been learning so so many mechanical design points ever since.

    • @Iamanidiot-v6i
      @Iamanidiot-v6i 2 месяца назад +3

      You can’t learn both?

    • @rickhunt3183
      @rickhunt3183 2 месяца назад +3

      A lot of EE's wish they could do your type of work too. You bring ideas to life. We just add the sensors and actuators. We can't draw anything but a schematic, and we're always using templates if we're going old school, however it's common for us to draw free hand on a napkin. Thats often done over a beer or two or six or twelve.

    • @Steve-f7t
      @Steve-f7t Месяц назад

      Ham radio people, pay attention

  • @JeffGeerling
    @JeffGeerling Месяц назад +100

    You've somehow made power supply design less of a "voodoo magic" and just "dark arts". I'm subscribed and can't wait to see what other explainers you can illustrate so clearly!

    • @electrarc240
      @electrarc240  Месяц назад +8

      Wow, thanks a lot Jeff!

    • @PhaTs00p
      @PhaTs00p Месяц назад +3

      Ok, now I know why I suddenly got this channel recommended

  • @Derlis_Jara
    @Derlis_Jara 2 месяца назад +322

    Don't stop doing this type of videos.

    • @electrarc240
      @electrarc240  2 месяца назад +35

      Don't worry I am not going anywhere! (I hope)

    • @jvanweeghel
      @jvanweeghel Месяц назад +3

      I agree. I am taking electronics as part of my electrician training and you explained it better than my instructor.

  • @evanmayer744
    @evanmayer744 2 месяца назад +163

    Holy cow, so this is what they mean by "RUclips University"! Please keep making videos like this! Your ability to explain complex topics through the lens of real-world practicality is extraordinary. Not one concept in this video feels arbitrary, and that's a massive achievement given the topic at hand - so refreshing!

    • @eitantal726
      @eitantal726 Месяц назад +1

      These are complementary. You should still go to University if you can, and still watch those videos if you do.

  • @jespersoerensen8552
    @jespersoerensen8552 2 месяца назад +51

    I have taken courses in feedback control and power electronics, but I never fully appreciated the awesomeness of these open and closed-loop regulators until now. Thanks for sharing!

    • @electrarc240
      @electrarc240  2 месяца назад +7

      Yeah that closed loop was so perfect I was smiling the rest of the day :D

  • @Gersberms
    @Gersberms 2 месяца назад +13

    Beautiful. "Voltage times current is power, so why isn't it power?" is such a fundamental question for people to learn.

    • @paulchamberlain7942
      @paulchamberlain7942 2 месяца назад

      Especially in these times of pushing 'smart' meters right?

  • @Alchemetica
    @Alchemetica 2 месяца назад +44

    A first-class demonstration of a linear power supply. By explaining the function of components and why using them achieves an efficient and constant DC output. Plus their relationship to the complete circuit diagram. Thank you for the video.

  • @anexoworkshop
    @anexoworkshop 2 месяца назад +71

    You do go the extra length teaching electronics, and I highly appreciate that. As mentioned below, the individual PCBs move was genius, please keep'em coming. Kudos from Brazil.

    • @electrarc240
      @electrarc240  2 месяца назад +6

      Thank you very much! Will do 😉

  • @LudoTitan4
    @LudoTitan4 2 месяца назад +23

    This video is revealing the secret of any kind of power supply in every device. This is a gem of Basics of electronics.

  • @Matey-850cc
    @Matey-850cc 2 месяца назад +19

    Excellent introduction for the beginner. Thank you for not overwhelming new students with all the peripherals that go along with more the complex power supply. Perfect!

    • @electrarc240
      @electrarc240  2 месяца назад +6

      Thank you very much!! It is sometimes a hard balance to strike

  • @sanbell6951
    @sanbell6951 2 месяца назад +15

    This is the most underrated and wonderfully done video on the internet.

  • @Soho9111
    @Soho9111 2 дня назад +1

    As an Electrical engineer myself, I admire your work, good job mate

  • @Wil_Bloodworth
    @Wil_Bloodworth 2 месяца назад +30

    Your videos could not be more perfect! They’re extraordinary! The Lego-style explanations are brilliant.
    Side note: it would have been really nice to have mentioned possibly needing in inrush current limiter to prevent smoking the rectifier diodes when your smoothing capacitor gets “too big”.
    So looking forward to more of your content! Keep up the great work.

    • @electrarc240
      @electrarc240  2 месяца назад +4

      Yes that's a good one I didn't think of! Thanks :)

    • @paulchamberlain7942
      @paulchamberlain7942 2 месяца назад

      Speaking of Lego style, mad props to China for making a Lego brick out of every conceivable electronic functional unit in a way the West never provided and possibly never would have provided, to keep people as foolable as possible. (Like it does with news and other information)

    • @Lightning_Mike
      @Lightning_Mike Месяц назад

      @@paulchamberlain7942 Dude, I have German power blocks to build your own SMPSs at my university. China is just cheaper.

  • @yevgennegvey4021
    @yevgennegvey4021 Месяц назад +4

    If i'm electrical engineer with 6 years of experience and i still learned something new from this video, does it mean that im bad or is it just that this video is so amazing?

  • @powerupminion
    @powerupminion 28 дней назад +6

    Hi, an electrician here.
    The reason why some fuses have sand in them and some do not is because of what we call "rupture current". A fuse "blows" over a certain amperage, but litteraly "ruptures" or "explodes" at a far higher amperage. The basic theory is that you need higher and higher rupture-current components, the closer you get to the power source. Sand-filled fuses are usually designed to have a far higher rupture-current than an air-filled ones. If you wanna know more, read into "short-circuit current theory". 😉

  • @Nipc855
    @Nipc855 Месяц назад +8

    You have brought electronics to the grass root. Thanks a million

  • @ae6850
    @ae6850 2 месяца назад +5

    I can’t leave your site without expressing my appreciation to your thoughtful efforts and brilliance in explaining technical matters.

  • @moss-ccw7971
    @moss-ccw7971 Месяц назад +4

    If you're a beginner or have been around a while, (and need a refresher ) this is the best explanation of a linear power supply that I've ever seen or heard. I'll be sending traffic to your channel.

  • @abid583ind
    @abid583ind 2 месяца назад +29

    15 years after I my electronics engineering, today I very clearly understood the 3 point output is just a feature but also a hack to reduce the diode forward drop loss...... Absolutely fantastic explanation

  • @freednighthawk
    @freednighthawk 2 месяца назад +46

    Yes, a power supply series should be a thing ,hopefully with a video on boost/buck converters.

    • @electrarc240
      @electrarc240  2 месяца назад +17

      Coming soon (possibly next video). I already have what I hope is a really nice way to explain the three fundamental converter topologies. But I am busy with work and have a long term project I need to work on so may be a month or two I'm afraid.

  • @SimonHein-s5n
    @SimonHein-s5n 2 месяца назад +6

    This had got to be one of the most fun and interesting way to demonstrate how a linear power supply works.

  • @luisalves9738
    @luisalves9738 Месяц назад +2

    Wow, we must protect this channel at all costs!

  • @olhoTron
    @olhoTron 2 месяца назад +14

    17:07 *FULL BRIDGE RECTIFIER*

  • @drinkintea1572
    @drinkintea1572 2 месяца назад +47

    SMPS: IM FAST AF BOY
    LPS: transformor

  • @todorkolev7565
    @todorkolev7565 2 месяца назад +5

    WOW!
    I am a 40 year old studying electricity/electronics for the magic that it is. I am not ready to talk about transformers yet (still studying what is actually Flux) but this video gives me something to look forward to!
    I would like to play with power electronics but probably do miniature learning circuits, using human-safe batteries, not mains, to create a "demo AC" and then I am thinking I'd wind my own transformers to experiment and truly understand the effects (as far as we can understand them).
    Thank you so much - and if you are doing live courses (in person or streaming), I would happily enroll if the price is right :)

  • @bennetting1609
    @bennetting1609 2 месяца назад +22

    Another brilliant video, hoping this entry of the 'Every Component of a ...' does as well as your last!

  • @theantipope4354
    @theantipope4354 2 месяца назад +3

    SO nostalgic! I was building & designing linear PSUs as a teen, starting back in the early 80s. I built SO MANY 5V/5A PSUs for bareboard Ohio Scientific Superboards, which were about the cheapest 6502 based systems you could buy at the time.

  • @c1ph3rpunk
    @c1ph3rpunk 2 месяца назад +8

    The relationship between primary and secondary voltages in a transformer is certainly more than meets the eye.
    Thank you, thank you, I’ll be here all night. As smooth as his rizz. 😂😂

  • @danzydan2479
    @danzydan2479 2 месяца назад +2

    Took me back some 30 years ago when I was in trade school learning basic electronics. Good content.

  • @MuhammadSalman-gv6mx
    @MuhammadSalman-gv6mx Месяц назад +1

    Thank you so much. I spent 4 years in university and wasted, but with a comprehensive video ❤
    Subscribed your channel.

  • @peerlessrecords6236
    @peerlessrecords6236 Месяц назад +2

    this is youtube at it's best! randomly stumbled upon this video and even though i'm +20y in the business I found this modular system very cool and probably very easy to understand for beginners. Choosing the right video-thumbnail definitely adds up. Keep it going! watched til the end. You're an amazing teacher, I couldn't teach like that. Respect!

  • @TheMasonX23
    @TheMasonX23 2 месяца назад +4

    Incredible video! I've learned everything I know about software and hardware from RUclips, and this is definitely among the best examples of what educational content on the platform should strive to be. Keep making cool stuff and putting it on the internet, you're changing lives man!
    Also, was not expecting the "as smooth as my rizz" line, but as an out of touch dad who enjoys embarrassing my daughter, I loved this!

    • @electrarc240
      @electrarc240  2 месяца назад

      It just came out unplanned haha. Maybe if I say it enough it will be true!

  • @micahsquires5312
    @micahsquires5312 Месяц назад +2

    This is a phenomenal video. Your breakdown and explanation of the components and principles along with the visuals is so, so good. This was my first video, but you’ve definitely earned a subscriber. I wish there had been explanations this good 35 years ago when I was trying to get an EE degree.

  • @Michel-nb7ob
    @Michel-nb7ob 2 месяца назад +11

    The best explanation ever ! Thank's so much ! I want more !

  • @Gregorius421
    @Gregorius421 2 месяца назад +3

    This is how physics classes should be conducted. Very educational.

  • @FlammableElectronics
    @FlammableElectronics Месяц назад +1

    This guy needs more views fr, the best video explaining these in detail of every single minute thing i have watched! Hats off man

  • @hangdog242
    @hangdog242 2 месяца назад +2

    This is a perfect way of teaching. I appreciate the time, thought and effort you put into making this video. Please continue the great work. Thank you very much.

  • @averagegigachad795
    @averagegigachad795 2 месяца назад +9

    Very well done and easy to follow video, it will help many people

  • @franciscorios7374
    @franciscorios7374 2 месяца назад +1

    Thanks!

  • @MikeU128
    @MikeU128 27 дней назад +7

    I absolutely love the fact that the power supply in this video is "linear", both in the electrical and physical sense! 😁
    Fantastic explanation.

  • @kebugcheck
    @kebugcheck 2 месяца назад +9

    Beautifully done.

  • @paulchamberlain7942
    @paulchamberlain7942 2 месяца назад +1

    Brilliant, this video *is* the difference between the primary motivation being to educate the viewer, and the primary motivation being to impress the viewer. I always ask the question of a video, is this guy just showing off, or is he 'spilling the beans' ? This is bean spilling at it's very finest, fantastic! Therefore, many thanks, much appreciated, and in addition, you have made the world a better place :)

  • @wirapui
    @wirapui Месяц назад +1

    never watch someone explain so completely before, but you

  • @nav1448
    @nav1448 День назад

    Am a 2nd year electronics engr student, this was our first technical project and am currently designing and building one. Your video helped a lot, thankyou very much!

    • @electrarc240
      @electrarc240  День назад

      Glad to hear, good luck with studies!

  • @muhammadaleemadil
    @muhammadaleemadil 2 месяца назад +2

    you deserve an award for this demonstration.
    Exceptional video, thanks.

  • @NekoSennin
    @NekoSennin 2 месяца назад

    I loved the plug and play components and how the linear power supply is built in stages. Keep up the good work!

  • @LyonsDenFarm
    @LyonsDenFarm Месяц назад

    Years of interest in the field just to finally understand circuits are basically jumbled in a non linear compact cluster or they get put in a straight line to actually make arithmetic sense.
    Where has this been my entire college education. This put half of my studies into one episode and actually made enough sense.

  • @vipulsawant2
    @vipulsawant2 Месяц назад

    I studied linear rectifiers almost 23 years ago, this is exactly how i was taught in my polytechnic. Nicely explained without any complicated math involved, outstanding video!

  • @KJFMZ
    @KJFMZ 2 месяца назад

    Where were you a year ago when I was trying to piece this info together for myself? Seriously, these videos are amazing and will absolutely be a boon to the next generation of EEs. Kudos.

  • @sharkbaitsurfer
    @sharkbaitsurfer Месяц назад

    One of the best teachers on youtube and being an excellent teacher is the highest accolade I can bestow because my teachers have been pivotally important, and positive influences throughout my entire life.
    SUBSCRIBED!

  • @JeanArenas-d6c
    @JeanArenas-d6c Месяц назад

    You are a skilled instructor and the quality of explanation, with step-by-step demonstration, is top notch. Thanks for your content.

  • @ProJektorish
    @ProJektorish 2 месяца назад +1

    Everytime I watch this, I learn something new.

  • @MOABI48
    @MOABI48 5 дней назад

    the best illustration ever. especially in the end with the circuit diagram.

  • @Derlis_Jara
    @Derlis_Jara 2 месяца назад +5

    Beautiful... I'm so happy I found your channel.

  • @johncitizen3361
    @johncitizen3361 Месяц назад

    Fantastic tutorial on linear power supplies. I grew up when almost every appliance used a linear supply with discrete through hole components, there was even still a fair bit of vacuum tube tech kicking around in the eighties.
    It made things pretty easy to understand and work on, although you had to be careful working on things like CRTs while powered up so if you were serious about poking around in stuff an isolation transformer was often the second project you built after a linear bench supply to reduce the risks a little.

  • @naveentechs
    @naveentechs Месяц назад

    This is simply amazing, could you do the same for switch mode power supply please, I know you already made a video on it but this method of building in real time and explaining is simply unmatched, once again thank you so much for make quality content like this.❤

    • @electrarc240
      @electrarc240  Месяц назад

      It is much harder to do something like this for a switching converter because they are much more sensitive to the parasitic that are introduced in the connections. But I will be doing things like this again

  • @thomasherbig
    @thomasherbig Месяц назад

    Absolutely amazing explanation! I have built power supplies before, but have never seen such a clean explanation. Kudos! You have earned another subscriber

  • @sweetlilmre
    @sweetlilmre 5 дней назад

    Just getting into trying to figure out how to repair power supplies. Your content is brilliant, thank you!

  • @luckyzeyan5391
    @luckyzeyan5391 Месяц назад +1

    Ur such a good teacher..... im into electronics repair this days and u have cleared my doubts thoroughly on power supply ❤

  • @dr_quantum1012
    @dr_quantum1012 7 дней назад

    Studying electrical engineering and power electronics are my passion. Unfortunately that focus is only offered in final year so I’m here to get my fix! Amazing video, never stop!

    • @electrarc240
      @electrarc240  День назад

      Ahh love to hear it! And that is annoying, hopefully I can help and maybe you can do your own power electronics projects if you have time!

  • @mkepler5861
    @mkepler5861 Месяц назад +1

    thank you for teaching me about the closed loop regulator, I had never heard of it thanks!!!

  • @icefire5555
    @icefire5555 Месяц назад

    I love how the circuits are broken out into each component to make it easier to understand!

  • @OpOlHead
    @OpOlHead Месяц назад

    This type of modular approach is fantastic. I’ve been at this for a little under 2 years and am glad to have found your channel.

  • @MrCrankyface
    @MrCrankyface 2 месяца назад +2

    These explanation videos are absolutely amazing, thank you for sharing!

  • @adrianrawlings2470
    @adrianrawlings2470 Месяц назад

    Congratulations, you have done a brilliant job in all regards. Your explanations are technically sufficient without being overwhelming. The design of your components provides a visually appealing demonstration without the clutter of a breadboard.

    • @electrarc240
      @electrarc240  Месяц назад +2

      Thanks! I agree, breadboards are great for prototyping and are understandable if you’re the person who build the circuit but trying to work out someone else’s circuit on a breadboard is so painful lol

  • @billiesmalls
    @billiesmalls Месяц назад

    I love your way of explaining this and especially breaking down the components into their own discrete module and plugin them in as you go. Keep it up mate.

  • @jasper5712
    @jasper5712 21 день назад +1

    You are a great educator,be blessed ,from africa the dark continent

  • @butwhytho6522
    @butwhytho6522 Месяц назад

    Nicely explained and shown. I appreciated that you highlighted the parts of the circuit diagram that you were simultaneously indicating.

  • @csconnor5160
    @csconnor5160 Месяц назад

    I was pleasantly surprised by how easily you explained transformers. In both my Physics 2 and linear electric circuits courses the information I retained about transformers is v2/v1 = n2/n1 and v2/m = v1/L. Thanks for the refresher!

  • @tushar8133
    @tushar8133 Месяц назад

    I could not have gained this detailed knowledge in my next 10 years, what you have shared with the world now ❤

  • @t33th4n
    @t33th4n Месяц назад

    I have given "great" and "nice" reviews on other describing videos, but THIS. Masterpiece.

  • @vipulsawant2
    @vipulsawant2 Месяц назад

    Thanks

  • @AntManBee19
    @AntManBee19 25 дней назад

    I’m in my seventies. I worked in IT and although I fixed many old computers often at the board level I never really understood what the components were doing electrical. Probably not the safest but.. so your explanations are nice - oh if only RUclips was around back then

  • @ArieAGinting
    @ArieAGinting Месяц назад

    a video that even someone who doesn't study electronics can understand... you deserve a lot of Subs!!

  • @dan7212
    @dan7212 2 месяца назад +2

    Love your videos. Very informative and easy to learn. Thank you for explaining the importance of power supply isolation.

  • @pboston6RR
    @pboston6RR 2 месяца назад

    Excellent! I’m self taught in electronics and have been using voltage regulators for years with my Arduino work. Now I understand what makes it “tick”. Thanks a LOT!

  • @Sidelobes
    @Sidelobes 27 дней назад

    Great explanation and demonstration! ❤
    I wish I had had access to content like this when I studied EE 20 years ago!

  • @rickhunt3183
    @rickhunt3183 2 месяца назад

    This is really a well thought out and delivered presentation. Most EE's in the US couldn't do this unless they are an instructor. We're taught that English is good but engineering is gooder.

  • @Splarkszter
    @Splarkszter 13 дней назад

    Woah. I love this format!!!!!!!!!!
    Please do more. It helps soooo much to learn when it's broken down like this.

  • @sstone2134
    @sstone2134 2 месяца назад

    These videos remind me about how my late grandpa told me about basics of how electronics work when I was little! We used to desolder all components from old & broken home appliances with a monstrous USSR made soldering iron together, RIP old man...

  • @Abdo_Elawady
    @Abdo_Elawady 16 дней назад

    as an electrical engineering student thank you so much you are a legend ❣

  • @LionAhmmed
    @LionAhmmed Месяц назад +3

    Great lesson

  • @spacewolfjr
    @spacewolfjr 2 месяца назад +2

    You seem like a man I could be a best friend with!

  • @rades9887
    @rades9887 11 дней назад

    One of the best education videos you make. Every honor!

  • @soulshinobi
    @soulshinobi 2 месяца назад

    Incredibly informative with the step-by-step of what problem each component is solving.

  • @beaudjangles
    @beaudjangles 6 дней назад

    Fantastic refresher for this industrial electrical engineer. I seem to remember that the current before the capacitor being very choppy as conduction only occurs briefly at the very peak of the recrified wave. I think you touched on it. I’d like to learn more about this and how we negate it.

  • @OrnsteinTheLeon
    @OrnsteinTheLeon Месяц назад

    This was my intro to electronics class, but you did it in thirty minutes. AND it made more sense 😂

  • @peirossmallhomemachineshop5364
    @peirossmallhomemachineshop5364 2 дня назад

    Outstanding pedagogy. Congrats.

  • @rickyrodriguez4037
    @rickyrodriguez4037 5 дней назад

    This video is really great. The use of physical modules and the analysis of each stage as we build the power supply out helps with understanding greatly. I know you already did the seitch mode power supply video which is also good, but i would love to see that video done again in this style. This way is so clear and tactile.

    • @electrarc240
      @electrarc240  День назад

      I’m not sure it can be done because of the parasitics of the connectors, and I don’t want to cover something twice. But I will definitely do this style for anything similar in the future!

  • @eltortu3883
    @eltortu3883 26 дней назад

    Probably the best explain video i have ever seen

  • @FlippinFunFlips
    @FlippinFunFlips Месяц назад

    I've been slowly getting g the urge to get back into Electronics, and finding your channel has definitely sealed that deal. Winter projects coming up!

  • @stevejelly2782
    @stevejelly2782 Месяц назад

    man i feel so good when youtube suggests random vids like this, keep up buddy

  • @ui4lh
    @ui4lh 2 месяца назад +4

    damn, so well made!

  • @garyhelms1889
    @garyhelms1889 20 дней назад

    Good video. I'm nearly 60. Graduated about 25 years ago with a degree in electronics. Never worked in the field though. I'm kind of getting interested again. Nice video for a refresher.
    BUT, I don't miss calculus.

  • @greganikin7003
    @greganikin7003 Месяц назад

    Thank you for this incredible video! This is amazing yet so simple to understand! Now i know why i have components in power amp in such order and what is going on in that chain when it’s on. Incredible job to make people little bit more educated!

  • @vadymvv
    @vadymvv Месяц назад

    I didn't know about two diod scheme. Nice and comprehensive presentation!

  • @weemanling
    @weemanling Месяц назад

    What an amazing video. Wish I was taught this stuff in this way back in school 20 years ago.

  • @petestamm5996
    @petestamm5996 2 месяца назад

    Simply brilliant, one of the best and most interesting videos I have ever seen. Hope you continue adding more to help everyone, but especially those like me who struggle to understand the mysterious world o electronics. Many thanks.

  • @patrikstaron
    @patrikstaron Месяц назад

    Very good explanation. The one thing I would definitely include is that linear regulator works by dumping the voltage away with current as heat, making it way less efficient as the difference between input and output raises.

  • @anurosmatus
    @anurosmatus Месяц назад

    Awesome! Did not know the operating process of the closed loop regulator! Brilliant!