it was a clear explanation. it can easily understand by the students. i didnt understand what our lecturer said but now i got a clear view about gain and phase margins etc.really it helps us. Thank you sir thank u very much
THANK YOU..sir ..most of the videos in youtube but they are not teach in engish. you are great .... i like your pencil .after a long gape i saw a this type(design) of pencil .
sir in phase crossover freq, in the previous video you took +30 +60 +180 as your values in phase axis and now it changed to -30 -60 -180, so which is the correct way?
180 or -180 both are same brother,,, this time sir mistakely read dash 180 to to minus 180.... so dont be confuse...love from india. you can msg me for further problems.
sir if there is no -180 in the phase angles..means if we got the range from 30 to 180 then whats should the value of the angle from where we get the phase cross over frequency??? reply needed urgent
+Chinmaya A.S.V for any value of w we cannot get fi -180 bcoz 180-tan inverse of something -tan inverse of something cannot result to -180 you too changed it from previous video it was 30-180 scale but in this video the scale has changed but not the points.. thats not fair...
If magnitude plot does not cross the 0 dB line but phase plot crosses the -180 deg point then can I calculate the gain margin. Because now I have phase cross over frequency and whether difference of gain at this frequency with 0dB will not be the gain margin??
Greatly explained. Man, you should teach for a living. Hope you can upgrade your "material", from pen & paper to some sketch-pad. For now, have my like + comment + sub. :) And for now, gogogo Nyquist plot! :D
sir in the phase angles.. initially we didn't have negative phases.. to calculate phase crossover you said we need to draw a line from -180°? please clarify
Bode plot has been haunting me since a long time. This was much needed. Thank you!
it was a clear explanation. it can easily understand by the students. i didnt understand what our lecturer said but now i got a clear view about gain and phase margins etc.really it helps us. Thank you sir thank u very much
THANK YOU..sir ..most of the videos in youtube but they are not teach in engish. you are great .... i like your pencil .after a long gape i saw a this type(design) of pencil .
I like your accent and explaining method as well. Thank you
Hope it was helpful :) Thank you!
Thanks man!! You saved my control lab. Keep it up :)
Welcome :)
I have a controls exam tomorrow and you helped a ton! thanks
Welcome :)
Thank you, this was the explanation I was waiting for. Great explanation. Carry on.
Thnx for the video... It helped me a lot for the exams
Thank you :) Glad it was helpful !
Great video sir cleared all my doubts and bode plot now seems so easy
Thank u sir
😊
thank u sir for bod plot and this video, it really helped over class discussion ovr bode plot which was bouncer for me. thanx a lot sir
Welcome :)
AWESOME VIDEO...hv xam tmrw.hv watchd bode plot video n this one.thnk u sir.grt job....
Thankyou. Glad it helped :)
Mmm
u r explanation is awesome sir i can understand easily thaankuuuuuuuu
You have an interesting accent ;). The video helped me out a lot, thanks!
Thank you :) Glad it helped !
fatfarty123 first thank you for help what is the distance in number ? for gain margin and phase margin?
thx
fatfarty123 first thank you for help what is the distance in number ? for gain margin and phase margin?
thx
Chinmaya A.S.V first thank you for help what is the distance in number ? for gain margin and phase margin?
thx
Ayyyy AYYYY !! FLOWER WALA APSARA PENCIL !!!!! Never the less video was good !
great Sir
it is really helpful for me to understand the Whole Bode plot
if i have every angle positive n -180 degree z nt there then how can we determine phase crossover frequency
Very clear explanations
Thank you sir
I am glad it was helpful :) All the best !
how could u join from --180° to phase angl plot.. b cz u take scale range frm 30 to 180 in ut previous video.
Sir u have an amazing accent..it makes even the most dry concept interesting...thanx for the brilliant explanation 😊😀
Thanks a lot :) Glad it was helpful !
with out using graph can i find out phase margin and gain margin
How u find out the phase crossover freq. From before plot
sir in phase crossover freq, in the previous video you took +30 +60 +180 as your values in phase axis and now it changed to -30 -60 -180, so which is the correct way?
180 or -180 both are same brother,,, this time sir mistakely read dash 180 to to minus 180.... so dont be confuse...love from india. you can msg me for further problems.
Please post an example on imaginary poles in root locus method
You're my best teacher
Thanks. I am glad it was helpful !
but you changed the phase angles on the right. confused. please help!
nice. very clear and accurate explanation. Thank you.
Sourabh Majumdar first thank you for help what is the distance in number ? for gain margin and phase margin?
thx
how did you get that _180 because the previous video is not having plz? help in the morning i have exams
if the maximum range of phase angle is below 180° and above -180° then how to draw the phase margin
i have a doubt y should we drawn from -180 in phase plot for finding gain crossover frequency
its for phase crossover frequency
sir ihave thevalues of phase angles from 30 deg. to 174 how i am get the valu of wpc
it's very good explanation of Bode plot
I learned a lot from u bro.... Tq
first thank you for help what is the distance in number ? for gain margin and phase margin?
thx
1:45 for non unitary feedback you would not have drawn that line in 0 db, right?
is it like you always take positive intop for magnitude and phase from postivie from down?
best video on this topic
what if your phase plot is phase>0 ( doesnt go negative), do you use +180degrees to find phase cross over frequency?
I have the same problem except my mag plot dosent touch zero. Do i assume phase margin dosent exist?
+jetfish777 yes no phase margin
same doubt here
sir if there is no -180 in the phase angles..means if we got the range from 30 to 180 then whats should the value of the angle from where we get the phase cross over frequency??? reply needed urgent
As much as poss try to make a substitution that gives u those values... Otherwise use the formula... Hope it helps :)
okk thanku sir :)
Chinmaya A.S.V which formula? can you tell me plz..
+Chinmaya A.S.V
for any value of w we cannot get fi -180
bcoz 180-tan inverse of something -tan inverse of something cannot result to -180
you too changed it
from previous video it was 30-180 scale but in this video the scale has changed but not the points..
thats not fair...
same doubt
thank you mate it's so helpful video
Thanks :)
If magnitude plot does not cross the 0 dB line but phase plot crosses the -180 deg point then can I calculate the gain margin. Because now I have phase cross over frequency and whether difference of gain at this frequency with 0dB will not be the gain margin??
shalini gupta first thank you for help what is the distance in number ? for gain margin and phase margin?
thx
toti to It is e^ epsilon, where epsilon is the dc gain of the bode plot as it tends to infinity.
Ronald 26 thank you but i still i cant find it ?
For Gain Margin, the distance is expressed in decibels, while for Phase Margin, it is expressed in degrees. It's just a matter of subtraction.
why are we taking 0 for gain over frequency and 180 for phase over frequency?
Sir I want polar plot and nyquist plot can u plz... help me
what happens if I have 57 degrees highest and -88 degree lowest.. which is my phase origin??
Thanks for posting these videos...
What if we don't get 180° in phase angles
why phase cross over freqency changes
in previous video u just taken 0 to 180 deg, but now angles are in negative.....would plzz...clear my boubt bro
Yes
first thank you for help what is the distance in number ? for gain margin and phase margin?
thx
Thanx buddy....u cleared my doubt
Thanks :) Glad it was helpful :)
is the phase crossover frequency and the phase margin frequency the same thing?
it is the same.
i didn't find any routh stability critireon part 2 and part 3 videos!
please send me the links
Greatly explained. Man, you should teach for a living. Hope you can upgrade your "material", from pen & paper to some sketch-pad. For now, have my like + comment + sub. :)
And for now, gogogo Nyquist plot! :D
sir in the phase angles.. initially we didn't have negative phases.. to calculate phase crossover you said we need to draw a line from -180°? please clarify
thank u so much sir for ur clear explanation
Welcome :) Glad it helped :)
Superbb explanation
Thanks it was helpful
And our other videos were helpful too
Thank you. I am glad they have been helpful!
very useful. Thanks. ps. that would be awesome to have it in better quality.
Welcome. Glad it was useful. Thankyou for suggesting. Will try to do better ones... :)
university professors suck. you rock. thanks for the instructional!
Its really Helpful
Tq sir tomorrow is my exam
I think there will be no use to refer my notes again
This video is enough
Very helpful, thank you
Glad it helped :) Thank you!
Amazing lecture
Thanks Sir
I am glad it was helpful. Thanks.
very helpful class video sir.
Thank you
M S Dinesh from india
Thankyou. Glad it was of use. :)
thanx a lot sir :) it's very easy nd helpful to understand....
Welcome :)
Chinmaya A.S.V first thank you for help what is the distance in number ? for gain margin and phase margin?
thx
Thanks a lot very helpful video
i am sorry for my previous comment...this helped me alot....
phase cross frequency 180 is not exist for every graph plz explain with another example phase cross over frequency
sir its easy to understand the subject u explained
bt i confused why should we take -180 for the phase margin ? cant we have another value!!!
he not even reply, fucking idiot make us doubt
How find Value of margins?
Bro in previous video phase angles r in positive now in this video it is negative.explain bro
how to know about stability by bode plot
plz increase video quality your are explanation is vry gud
how to write TF from if magnitude is given
thank you.. help us a lot.
tq very much sir....it helps very much
Nice video. Its going to make me pass tomorrow. But I didnt really understand your explanation for Rakesh Mandals question..
Glad it helped :) just search for the formula
U will find it
Sir pls explain how to find out the phase margin and gain cross over frequency
tan q so much sir ,it is very useful
How do you find phase crossover frequency when you dont have -180 just as in your other video explaining how to draw a bode plot?
same doubt bro
if u know tell me
if there is no phase cross over frequency at -180 then your gain margin is infinite :).
we can use the formulas instead of finding those values from bode plot
isn't the frequency axis actually a log omega axis....?this means the frequency is 10 actually when you say it '1'?
Helped me, thanks.
it was very helpful...
thank u n good explanation....
how to select wl,wh
need clear explanation
Sir the video is very clear except the one. How phase margin plot has changed nd how we get -180 when all the phase angles are in positive
you answered my question easily!
Thanks a lot man !!
that was very helpful ...
thank you. it really helped
thank u! better than nptel!
Lol.... Thnx :)
thanks a lot sir its help us a lot
Welcome :)
+Chinmaya A.S.V sir plz ans my qsn
doubt at phase cross over frequency. You changed 180 to negative 180?
yeah...i have the same doubt....
yes..same here..
exactly...same doubt
i can make out that u guys are 3rd yr students and u have ur semester exams... isn't it..!?😂
Tommorow is my exam :-(
it helped me a lot sir...thank you :)
Thanks it helped me alot
Welcome :) Glad it helped !
thx a lot sir its really helpful.......
Love you sir 😍
I am glad it was helpful ! All the best !
Sir thank you so much I'm grateful to you
Thank you very much :) All the best!
Thnkss it helped me alot..!!
clear cut explanation
Thank you... Hope it was helpful :)
-180? the previous video had all the phase angles between 167 and 30.
same problem
very helpful....thanks!
Glad it was helpful :) Thanks!
U made it too easy for me!
Glad it helped :)