Introduction to Signal Flow Graphs

[@KILOMIKE86]

I have watched a ton of lectures on technical subjects. But none come close to the level of simplicity and amount of knowledge that is seen in videos of Neso Academy. This shows the level of efforts put into creating these lectures. Thanks for everything. I would request all people benefitting from the lectures to like, comment and share these lectures. This is the least we can do.

[@makisxatzimixas2372]

That's the only lectures I have seen that don't make me feel stupid. It's not that I'm stupid, the difference is that these lectures don't skip steps!

[@kiptoonickson6865]

Neso academy, the best ever experience i have ever had regarding online learning. Thank you very Much

[@aaqibrashidle6655]

Neso academy is just amazing We are really thankful to you sir for such amazing lectures

[@pradhanchoudhary4069]

Sir, waiting for all the Control Systems lectures. Thanks for upload a very good content.

[@brianokari3333]

thanks for helping me understand sfg better

[@NdziBiligraham]

Neso academy 🥰🥰 Just the best ✨✨ Very helpful 💯

[@AMANPROF]

literally one of the simplest video on topic , Thanks NA...

[@MaxPicAxe]

Thank you so much for making this genius epic video, way better than wikipedia, epic!!!

[@clintonenow1843]

Thank you for your lectures!! You've saved my life!

[@basicg648]

Neso Academy is best 👍👍

[@aneetakushwaha9058]

I was waiting for it thanku so much Sir. Please upload remaining lectures.

[@subboteddo9246]

Are you preparing for gate

[@BuzZzGaming21]

Plz tell me why curve draw in x2 to x3

[@ravivlogs8822]

Sir please upload all lectures of control systems as earlier as possible...

[@simonkade7052]

I realize I am kinda randomly asking but do anyone know of a good website to stream new series online?

[@PunmasterSTP]

@@simonkade7052 Do you mean like Netflix or Hulu?

[@duchoang3635]

19:28 can y3 y2 y4 y3 be a loop sir. Thanks in advance

[@danerMuhammed]

thanks this helped me a lot now iam fully ready for tomorrow's quiz

[@dobermandanteh]

Thank you am from Kenya❤❤❤

[@michaelluciano6945]

Thank you very much!I must and need to learn this contents to mathematics model😃🧐

[@nodermark8922]

In loops - Is y2 to y4 via a24 --> y4 to y3 via a43 --> y3 to y2 via a32 also a loop? It starts and terminates at y2

[@PunmasterSTP]

Another amazing video as always. But I have to admit that this one threw me for a bit of a...loop 😎

[@fineline392]

Excellent content, great work!

[@subhikshajayaram9258]

Sir please do upload other topics soon ... Tqsm for great content

[@a2a827]

Sir I requesting NESO to complete Power Systems for GATE as early as possible ❤️

[@PunmasterSTP]

Did you already take the Gate?

[@a2a827]

@@PunmasterSTP nope

[@PunmasterSTP]

@@a2a827 Are you taking it this year? I'm in the US and I don't think we have the Gate here, so I'm not quite sure of the specifics.

[@a2a827]

@@PunmasterSTP yeah I'm taking it this year for the first time.

[@a2a827]

How do you came across GATE

[@tricksbybharath7380]

Sir thanks for this lecture and As mush as possible provide a video on polar plots

[@anirudhabajaj5291]

I have one doubt at 17:55 dont we have 5 loop ? as new two loops are y2->y4 and then ->y3(a43)->y2(a32) @neso

[@sahanasingh8580]

your vedios are realy helpfull ,can you please teach analog and digital communication as well? it would be a great help .

[@aroyengineer8789]

Sir Electrical and electronics branch wale me electrical machine and power system v h so sir plz in 2 Sub pr v vdo banaye power system ka vdo h playlists me but or vdo chahiye sir please apka explain karne ka tarika bahut hi lajabab ❗

[@Pronab.chetia]

Awesome lecture

[@sanskarkumar8674]

thanks Sir❤

[@EmmanuelIbekwe-zq4cx]

Why Engineering 😢

[@zzzzzz14456]

struggle is real

[@starkkcc6757]

Sir please upload all lectures

[@nareshbhadane2533]

Thank you sir

[@kirtikansal7388]

please make videos on communications and emft

[@EngrZakiVlogs]

Great sir

[@nayankarmakarofficial6294]

Thanq❣️❣️

[@hassankalot2387]

internal point 🔥

[@AminulIslam-hq7ot]

Thanks

[@getthemoves2810]

Thank you very much

[@mohammadzubair1322]

Amazing

[@Ben-sx5xb]

I am pretty sure there are 4 loops. you are missing Y2 -> Y4 ->Y3 -> Y2

[@dhrumin_patel]

Are you correct? Have you done some research for these till now ! i.e. for loop y2-y4-y3-y2

[@triple.e.sudhanshu]

Get the easy steps to solve SFG numericals here!

[@ankitjaiswal4626]

can a24,a43,a32 be considered as a loop?

[@hrithiksingla5709]

More useful than college

[@aroyengineer8789]

Sir Electrical machine k topic pr v vdo banaye sir

[@venkataramanaeee2196]

a24 a43 a32 is not a loop?

[@Jafar-is6te]

I think he missed it

[@PunmasterSTP]

@@Jafar-is6te I agree; I think it is a valid loop.

[@brendonbhebe3462]

On the loops is(a24)(a43)(a32) not a valid loop, you didn't mention it

[@suryatejakamuju1910]

How u say it's not a valid loop

[@PunmasterSTP]

@@suryatejakamuju1910 I think Brendon meant to phrase that as a question, like "Is loop (a24)(a43)(a32) not a valid loop?" I agree that it *is* a valid loop, and I think the presenter in the video just missed it.

[@adityabhandari6688]

@@PunmasterSTP yes, I think he missed this loop

[@markginsberg5854]

I'm sorry to be the person who complains. The bulk of these lectures are correct, but there are silly mistakes in just enough places that you have to extremely careful. In this introductory lecture the point made under the last section on "equivalent nodes" is wrong (clarification: the second half of rule 5). A quick way to see this is that the line exiting downward without touching the summing point would carry the same signal coming in from the left. After being connected to the summer [sic] "equivalently" it now carries the sum of two signals. Hence disproving the equivalency. Also point 2 of the same section says that "take-off points are equivalent to a node". This is well intended but also incorrect. SFGs can undergo graphical simplification methods and any node which is a pure take off point can be substituted with a series of paths. What he is trying to get at is that-- to confirm that the SFG is yielding the same thing as ODE block diagrams, its good to preserve the nodes just ahead of integrators so one can compare the ODE to the SFG (typically by comparing the ODE's state transition matrix to the gains predicted by the SFG on a term by term basis). However, when using pure SFG analysis, it's best to use a graph simplification. Lessons beyond this one also have minor errors. So it's well worth hearing these lectures because the verbal descriptions are lucid and worth copying. But keep your wits about you and do not blindly agree with the examples being given.

[@JeremaiahJoseph]

y2 - y4 - y3 - y2 should also be a loop right? If its not, please explain why so

[@arpitakumari1935]

yes it is

[@devashishsinghania3119]

SIR in loop we have an another loop y2 a24*a43*a32y2

[@larryzdanis5377]

in part 5b, something seems ambiguous.. how would you know that the downard-left-curving-arrow only represents a, and not a+vertical-incoming-arrow-to-Nodeb?

[@rezar_fact550]

14:40

[@انجليزيتوجيهي-ج6ن]

y2 y4 y3 y2 i think this is loop a24. a43. a32

[@Jafar-is6te]

Y2-Y4-Y3-Y2, I think this is a loop.

[@qamarabbas-hi1gk]

I also think that it is the loop

[@PunmasterSTP]

@@qamarabbas-hi1gk As do I.

[@sungod9451]

No bruh, that is not a loop.

[@gloryaderinola8669]

Not a loop

[@gloryaderinola8669]

@@annaveia2417 y4 is a self loop and the arrow is going in another direction.

[@shoujozai3881]

sir is it possible to join 2 summing points and convert them to a single node? like 2 summing points beside each other in a block diagram

[@PunmasterSTP]

I think that's perfectly valid! In general, I think that if there is only one branch connecting two nodes with unity gain, then those two nodes can be combined. Like in a circuit diagram, where two nodes are directly connected to each other via a wire; they're really just a single node...

[@osamaasif4656]

In which have only two forward path not three

[@Knowledge_oriented]

Sir, control system full chapter karo, taki help milega

[@mr.abhishekji1237]

How many input nodes can be in one system

[@choco9712]

Sir please, can a23 a34 a43 a32 be loop?

[@simomohamed4191]

no because the path you are describing is not a valid path because you visit the Y3 node twice

[@simomohamed4191]

a valid loop that was not discussed is the y2=>y4=>y3=>y2 this is valid loop because the path starts at y2 and ends at y2 and does not have any repeating nods

[@AA-gn1gt]

What is a Independent loop??? Pls reply ASAP Im writing exam😂

[@StudyTime-f1b]

Looop 😅

[@hemanth9184]

Op ❤️

[@sanskarkumar6484]

thanks Sir🙏❤