Gain and Phase Margins Explained!

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  • Опубліковано 30 лип 2024
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    In this video I explain gain and phase margins. If you are confused by this topic I hope this video will help tie all of the concepts together that go into understanding what gain and phase margins are and why they're important.
    Errata:
    Nothing I know of yet! Let me know if you find anything and I'll add it here.
    Don't forget to subscribe! I'm on Twitter @BrianBDouglas!
    If you have any questions on it leave them in the comment section below or on Twitter and I'll try my best to answer them.
    I will be loading a new video whenever I can and welcome suggestions for new topics. Please leave a comment or question below and I will do my best to address it. Thanks for watching!

КОМЕНТАРІ • 517

  • @jonathanbezeau8213
    @jonathanbezeau8213 7 років тому +696

    In under 14 minutes you explained this better than my prof in 3 lectures. I am forever indebted to you . You are the real MVP.

    • @mpiziqamo7786
      @mpiziqamo7786 7 років тому +6

      Exactly.....u thee boss Brian

    • @rishabhroy6411
      @rishabhroy6411 5 років тому +3

      Exactly mate.. I was going astray then suddenly I found this video.. Nice work done..!!

    • @ginebro1930
      @ginebro1930 4 роки тому +16

      Not to mean that he doesn't explain well but one is able to understand this fast because you got 3 lectures before, all people seem to forget that

    • @andyhype2546
      @andyhype2546 4 роки тому +2

      That is why Brian Douglas is my god. I will follow his teachings

    • @li-pingho1441
      @li-pingho1441 2 роки тому

      agreeeeeeeeee

  • @Garebare1
    @Garebare1 5 років тому +151

    Everytime I search a topic in my controls class on UA-cam i cross my fingers and hope there’s a Brian Douglas video lmao

  • @nosleep1870
    @nosleep1870 4 роки тому +97

    Still helping people 4 years later, what a legend

    • @harishchoudhary1441
      @harishchoudhary1441 4 роки тому

      Less phase and gain margin both are decrease stability or something different?

    • @abderezakabidi4510
      @abderezakabidi4510 4 роки тому

      5 years later

    • @hemantahire1131
      @hemantahire1131 2 роки тому

      @@harishchoudhary1441 yes, this will be still stable but the margin will be less. Will go quickly in the unstable mode for any undesired event.

    • @benting5125
      @benting5125 2 роки тому +1

      6 years later.

    • @prajwalvsangam9234
      @prajwalvsangam9234 2 роки тому

      7 years!

  • @ZombieWarfare200
    @ZombieWarfare200 Рік тому +35

    This video is 7 years old, free and still provides a better understanding then the lecture content that I pay for at my institution, thank you so much.

  • @Dollyo98
    @Dollyo98 4 роки тому +26

    I've been struggling these years to understand how phase and gain margin works and in a 15 min video you clearly explain it in a very dynamic way, really good content!

  • @CalenCarabajal90
    @CalenCarabajal90 9 років тому +2

    Hi Brian. It's been about four years since I took any control systems lectures, but even though I work in a different branch of EE, I occasionally spend time reading up on previous topics I haven't seen since my undergraduate career. Reading through Nise's book again has been a trying and dry task, but watching these videos has shed serious clarity on the subject and I'm understanding it better than ever. Just wanted to say thank you for making these! I love a great engineering channel!

  • @petros4225
    @petros4225 9 років тому +8

    Thank you, sir. I'm studying electrical & computer engineering and watching your videos really helped me a lot. Keep up the good work.

  • @GearClinkz
    @GearClinkz 4 роки тому +7

    I've been reading papers for this so I can understand what those two are for my master's thesis and you explained it perfectly in 14 minutes. I can't thank you enough!

  • @JetNmyFuture
    @JetNmyFuture 7 років тому +7

    This whole series is FANTASTIC!!!!! After numerous books and lectures, I did not quite get it. Control theory is starting to make sense, but more importantly starting to help my practical design efforts in power electronics.

  • @Benedetissimo
    @Benedetissimo 8 років тому +2

    Wow, this Channel is the discovery of the year! What a genius way of explaining this stuff, hats off to you Brian, lovely work!

  • @georgiosapostolides1944
    @georgiosapostolides1944 4 роки тому +2

    Man to put it simply you are a legend! You helped me understand the true meaning of a lot of things in Control Theory. You explain things that very few people on UA-cam touch accurately and professors who teach the subject are mostly bothered with the maths rather than the true meaning of things. I owe you big time!

  • @skyemceowen957
    @skyemceowen957 3 роки тому +7

    I am studying for my PhD qualifying exam in feedback control/linear systems and I can say this is as of yet the BEST explanation I have ever seen on this topic :) Thank you so much

  • @nikhilshah9060
    @nikhilshah9060 3 роки тому +2

    This is hands down one of the most brilliant, simple, no bullshit videos I've ever seen. Thank you so much for this. Perfect utilisation of 13 minutes.

  • @sallycolly
    @sallycolly 4 роки тому +6

    This explanation was incredibly clear, and helped tie up so many loose ends. Thanks so much for making this!

  • @diegoocampo9003
    @diegoocampo9003 5 років тому +2

    Mate you rock! I've been able to grasp all the concepts from your videos a lot better than from my professor in almost 2 months! Thanks a lot

  • @johnbounds6735
    @johnbounds6735 9 років тому +5

    I really enjoy your videos .. when I'm tired and bored to read a book or solve problems .. I just relax and watch your videos .. God bless your soul :D

  • @Tranksmighty
    @Tranksmighty 5 років тому +10

    I can't pass without saying "thank you". I think you are gonna save me for my System Dynamics Control exam tomorrow!
    Thank You

  • @RUBENKNEX
    @RUBENKNEX 9 років тому

    Great videos Brian, I watched them throughout a control systems course and they really helped with intuitively understanding the topics.

  • @shellyliu7527
    @shellyliu7527 4 роки тому +2

    So detail-oriented tutor! Love you so much. Thank heavens for your existence in the world!

  • @xinwen8333
    @xinwen8333 7 років тому +7

    AWESOME!!! that is absolutely the best thing i ve ever found as a teaching video!!

  • @Silverdeamon92
    @Silverdeamon92 9 років тому

    I really wish you had made this viseo last year. Your lectures makes so much more sense. Keep up the good work.

  • @user-um4jz1bi7x
    @user-um4jz1bi7x 8 років тому +1

    your explanation and drawings are a huge help to get the idea of gain and phase margin ! It is just so intuitive. thanks a lot!!

  • @jaredz1993
    @jaredz1993 8 років тому

    Whatever you do, do not stop making these videos. Definitely the best video I have seen regarding the subject.

  • @TTB630
    @TTB630 8 років тому

    First video I've seen from you, a schoolmate recommended your channel to me. Incredibly helpful! Thanks in advance for teaching me! :D

  • @ohall33
    @ohall33 8 років тому +5

    You are very thorough in your videos, thank you so much!

  • @HudsonREng
    @HudsonREng 9 років тому

    I was waiting for this video! Such an important topic! Thanks Brian!

  • @haneficalik220
    @haneficalik220 7 років тому +1

    man you are a life saver. i have been watching a lot of your videos and the all have been helpfull to me. big up man

  • @SetMyLife
    @SetMyLife 9 років тому

    YES! Thank you Brian. This is exactly what I have been trying to figure out for a long time.

  • @woo0944
    @woo0944 2 роки тому

    Awesome work! The explanation, length, speed, pronunciation... everything is perfect! Thanks a lot!

  • @wangyuanyang2128
    @wangyuanyang2128 8 років тому

    Brief and to the point. Very helpful. Thank you for this amazing short lecture.

  • @Mo340par
    @Mo340par Рік тому

    Found this series reviewing for my FE/PE exams! Exactly what I needed to get back on track.

  • @yuzhang8143
    @yuzhang8143 5 років тому +1

    Super awesome explanation, saving me from confusion. Thanks Brian!

  • @binxxx1992
    @binxxx1992 8 років тому

    impressed by the quality of your videos, great stuff! thank you very much for your help!

  • @ManojKumardear
    @ManojKumardear 7 років тому

    your videos are helping me very much in understanding control systems. This is really an intuitive approach. Thanks a lot sir!

  • @TomBaumeister
    @TomBaumeister 6 років тому

    You are the mann!! I've been looking for this information in a clear way for so long... And I really like the pase. Somehow I think this is easier to get, than if you would have explained it at a slower rate. Thanks! Only one thing I would have really appreciated is if you had mentioned the "crossover frequency" in the video. Or is it in one of your other videos?

  • @plesnererik
    @plesnererik 7 років тому +1

    Wow. NOW I understand this. I will be watching the other videos also. Thanks for this fantastic lecture.

  • @prajaktaranade2064
    @prajaktaranade2064 5 років тому

    Amazingly explained thank you so much! I was so confused when I studied this and then I found this!

  • @mehulgoyal6560
    @mehulgoyal6560 7 років тому

    Man. Your concepts are crystal clear. You nailed it sir. 👍🏻

  • @StaticMusic
    @StaticMusic 4 роки тому +1

    this was excellent. exactly the level of detail I needed. Thank you!

  • @license2Bort
    @license2Bort 7 років тому

    Brian Douglas, you are a true life saver! Thank you for your great videos! Wish you the best!

  • @yagizp
    @yagizp 2 роки тому

    Thanks mate, really, thank you so much. I'm an engineer and I studied that thing more than 10 years ago. These days I need the information again. After searching web for hours I was frustrated. I decided to go on youtube as a last resort and tadaaa! your video made everything clear in 10 minutes. I haven't watched the matlab part yet but I've decided to add a comment!!👍

  • @mohammedalnaggar2409
    @mohammedalnaggar2409 8 років тому +1

    Your explanations are amazing!! Please keep it up!!

  • @ThomasTurkington
    @ThomasTurkington 7 років тому +1

    Thanks again Brian! It's not many people can make you laugh while clearly explaining control theory!

  • @quenthockey
    @quenthockey 5 років тому

    Thank you so much for this video. It makes the concept of margins so clear !

  • @NancyMancarious
    @NancyMancarious 5 років тому

    This video is so revealing for the concept of why use of bode diagrams - I LIKED IT - ...… thanks a lot Brian =D

  • @georgeenriquez4474
    @georgeenriquez4474 5 років тому +6

    4:11 wow that analogy couldn't have been more perfect.

  • @pguillem3
    @pguillem3 7 років тому

    Bioengineering student here... you sir, just saved my ass!!. There are VERY few people who can explain this subject with enthusiasm and absolute clarity. Sadly my control systems teacher is not one of them. A million thanks from Bogotá (Colombia).

  • @sachindoddamani2304
    @sachindoddamani2304 3 роки тому

    Awesome explanation. It cleared so many doubts. Couldn't have asked more on this topic with Matlab demonstrations. Thanks a lot again.

  • @yusufsalman3534
    @yusufsalman3534 7 років тому +112

    You make the world a better place :)

  • @stuvschaffer1674
    @stuvschaffer1674 Рік тому

    Wow! That's f***ing brilliant! Gonna binge watch your playlist before my exam in a week.
    Amazing work mate!

  • @clankwarrior9832
    @clankwarrior9832 8 років тому

    Best explanation. I would even say your vids are a good introduction to control. Of course having the mindset that later these things will go into much more detail, but just to grasp some overall concept of what's going on. Most lecturer's just jump way way way into the details and the CONTEXT is lost. thanks Brian.

  • @thelog222
    @thelog222 9 років тому

    Great video Brian, looking forward to the next one.

  • @ventjemazzel8822
    @ventjemazzel8822 5 років тому +13

    Brian deserves the Nobel prize for teaching!

  • @nabanitaghoshal11
    @nabanitaghoshal11 8 років тому +1

    hey douglas u r just awesome !!! It totally cleared my doubts !!

  • @briofifty
    @briofifty 9 років тому +2

    Great video Brian, thanks for the explanation. What about a short explanation on the sign of gain margin, in particular a negative gain margin example.

  • @victorhakim1250
    @victorhakim1250 3 роки тому

    This video is VERY helpful. Thank you for such a well-made production!

  • @Jackisaboss1208
    @Jackisaboss1208 3 роки тому

    My advisor had me skip classical controls and go straight into multi-input multi-output LTI systems, so suffice to say I was very unprepared. Thanks for clearing a lot of this stuff up!

  • @drianhoward
    @drianhoward 8 років тому +1

    Dear Brian, your tutorials are all excellent!

  • @Lefachie
    @Lefachie 2 роки тому +1

    Makes me want to pay more attention in class 😂. I genuinely felt like I learned something just now. And thanks to that you made me more motivated to do my work. Thank you !! :)

  • @blessoneasovarghese9834
    @blessoneasovarghese9834 3 роки тому

    Great job! Your lectures are just amazing and praise-worthy.

  • @oryanol
    @oryanol 4 роки тому

    This was much much better than what I learned during our lectures. Thanks a lot

  • @klam77
    @klam77 8 років тому

    thanks for taking painstaking effort to put this together!

  • @venkatatejaswibattula3716
    @venkatatejaswibattula3716 6 років тому

    Woww,I have never found such an amazing video on youtube ,so great illustrations ,please help us by keeping it up

  • @HitoSarg
    @HitoSarg 9 років тому

    Your videos are amazing. I've learned so much about control systems from you compared to my professor! :)

  • @lafrooptimiste245
    @lafrooptimiste245 Рік тому

    This video is simply the best of the videos I have watched on this topic. Thank you very much

  • @alexvonperger1196
    @alexvonperger1196 5 років тому

    you are a genius at tying these concepts together ty ty ty ty

  • @ahmhmd1990
    @ahmhmd1990 7 років тому +1

    Great video, I have understood it very well, and I was never taught this in a class :)

  • @ragulp-sn6gf
    @ragulp-sn6gf Місяць тому

    Very well explained... Been studying control system for a long time and yet this video brought the most clarity'

  • @wanderfra42
    @wanderfra42 Рік тому

    The excellent and clear video we all needed. Thanks a lot!

  • @pravingupta306
    @pravingupta306 4 роки тому

    this is so far the best explanation to this topic. Thanks!!!!

  • @KnightRiderX85
    @KnightRiderX85 7 років тому

    Till this day, after over a year of courses partially dealing with bode plots, I never understood the purpose of Gain and Phase Margins. THANK YOU!!!
    PS: You def got yourself a Like and Sub!

  • @silipaum123
    @silipaum123 6 років тому

    Thanks a lot man. You really helped me understand some things I never trully understood. Thank you so much.

  • @mohamedadelabdelrahman7905
    @mohamedadelabdelrahman7905 5 років тому

    one of the best videos I have ever watched to understand Bode plot

  • @anelycmelendezr1668
    @anelycmelendezr1668 6 років тому

    Thank you Brian! outstanding lectures. Amazing job.

  • @martongaspar7777
    @martongaspar7777 Рік тому

    Thank you so much for this! So much more clear than my professor's lecture!

  • @WhileTrueCode
    @WhileTrueCode 9 років тому +20

    Rofl 5:12 like a boss. Thanks B. Douglas for another fantastic video- your fast paced and comprehensive lessons are wonderful to watch, even if I am not really part of your target audience :)

  • @spandanroy1130
    @spandanroy1130 7 років тому

    This video is so good! Thanks, Brian.

  • @Beastzzz0
    @Beastzzz0 2 роки тому

    Im a South African student studying Electrical in India and its really tough and its very difficult to find proper english videos and i happen to stumble upon your channel thank you and hats off to you👍🙏

  • @a1e1c1v
    @a1e1c1v 8 років тому +1

    wao! you are So exelent. I mean to put the entire content as general/global then you explain what you want to get from it and then the conclusion. I understand everything and my mother tonge language is Spanish. If I could I would do something in change for you just by the fact that I understand Control theory because of you.

  • @chaitanya9032
    @chaitanya9032 6 місяців тому

    Thanks for the simplest and awesome explanation of a complex topic 🙏🙏🙏

  • @yadiazg8
    @yadiazg8 7 років тому

    Congratulations Brian! I wanna buy your future book! ...I have a question, what about stability in systems with more than one phase margin?

  • @MatanBaum
    @MatanBaum 6 років тому +2

    Great Video :)
    I would like to know more about the special cases:
    what happens when the Gain graph doesn't cross the 0dB line, and\or the Phase graph doesn't cross the 180 degrees line?
    how can you determine the stability then? (given that you can't calculate the GM or the PM or both?)

  • @LawrenceKesteloot
    @LawrenceKesteloot 9 років тому

    Thank you so much for making these!

  • @hamishm9981
    @hamishm9981 9 років тому +1

    Thanks Brian! You're my hero

  • @RahulTiwari80
    @RahulTiwari80 9 років тому

    i was waiting for this lectrue. tnxx a lot douglas.:)

  • @Ratnoo
    @Ratnoo 7 років тому +1

    This is spot on. Fantastic job.

  • @duino-x1766
    @duino-x1766 7 років тому

    Dude so very helpful. You would kick ass as a professor if you ever went that route. I would take your classes

  • @Sn3innovationsLLC1
    @Sn3innovationsLLC1 8 років тому

    Excellent course! I'm providing similar material but tackling it from a different angle. Extremely important topic!!

  • @rakesanand1
    @rakesanand1 8 років тому

    well explained and helped me in a quick understanding.... thank you sir.

  • @bibekgupta1290
    @bibekgupta1290 6 місяців тому

    Simply Wow!! That feeling when you understand it so good!!

  • @FreeTrial93
    @FreeTrial93 5 років тому

    it definitely helped to clear things up a bit! Though i hoped to find analytical examples in calculating this. Because we can't use matlab on exams :(

  • @nickzhang7862
    @nickzhang7862 3 роки тому

    I like your video. They are clear and effective. Thank you and please make more.

  • @hazzimodo1574
    @hazzimodo1574 5 років тому

    Yet again another fantastic video!!!! You're a lifesaver!!!

  • @Sean-nx8mh
    @Sean-nx8mh 4 роки тому +2

    This teacher is literally legend

  • @AK-dt9ou
    @AK-dt9ou 3 роки тому

    The "story " about Gain and Phase Margins I think it from the most difficult concepts...to say why and where 1 and -180 coming from and so on...Always all things are more obvious if you know the story...So imo it was so clear explanation!Good job..keep going like this...thank you!

  • @rachitaruchismitasarangi9366
    @rachitaruchismitasarangi9366 6 років тому

    Amazing...took me real long to reach this helpful video..wish I had seen this earlier

  • @AmiroucheKehoul
    @AmiroucheKehoul 9 років тому

    thank you for that brilliant explanation I really appreciate it

  • @darshitabindal3908
    @darshitabindal3908 3 роки тому

    I could not find a better explanation anywhere on the internet!

  • @yashb164
    @yashb164 6 років тому

    Beautiful and concise explanation. Thank you so much.

  • @dalahmah
    @dalahmah 2 роки тому

    Great video. Cleared so much ambiguity in this topic.