Lecture - 35 Oscillatiors

[@karishmavashishtha9891]

with the deteriorating quality of education in India, Nptel is a saviour....extremely helpful. Thank you proffesor Natrajan. :-) all lectures are awesome .

[@Aemilindore]

Thank you professor. Your videos helped me graduate from a little known(rather in top 3000) university with a first class in EE. Now I work at the worlds top 11th university. You have blessed the world with your videos. Thanks India!

[@Aemilindore]

I am still watching your videos, just to learn how I now teach these topics as a TA to new undergraduates.

[@edwardkumarkenway1875]

@@Aemilindore You can learn about more courses by visiting their official website which is absolutely free f cost.

[@Aemilindore]

@@edwardkumarkenway1875 yep. I found it sometime back. THe thing that happens when you graduate & start working is that you dont have enough time to follow those. I was a boy when I found these videos. Now i'm married :-P

[@edwardkumarkenway1875]

@@Aemilindore Damn. May I know which institution you are employed at ?

[@akankshabhardwaj9325]

only due to these nptel lectures..i can reflect my study to others😊thanxx alot

[@santom13]

GREAT Explanation..!!! Detailed Explanations like these are missing in mostly all of the famous Electronic books by just mentioning the Barkhausen conditions in two lines, which leave us forever to have the idea that Oscillators are just confusing..

[@thepeppertech]

15 years back, his CRO was not able to measure frequency directly. :o He had to use function generator and find it by overlapping. i have gained respect for this little feature in my DSO now.

[@roytan7962]

yes, oscillator is the most important part in the rf circuit. add in phase lock loop and varicap can form a "Voltage Control Cscillator" circuit

[@bineetbisu]

thanks a lot sir for such a good explanation of thing....

[@jesusmic]

ManyThanks toProf Natarajan and IIT Madras

[@brijeshvora9386]

your video lectures are more helpful (because I can pause you whenever I want)than your class as I am sleeping in your class.

[@KnowledgeAmplifier1]

At least you are fortunate that you can attend these golden lectures 😊

[@vvlalithagurujyothinandira858]

thank u so much sir. your lectures are of great help.

[@harshitsoni2022]

If i am not wrong , in the twin t oscillator network , the feedback through the bridge should be into the non inverting terminal because the twin t circuit provides zero phase shift.

[@vishnuZhere]

Thank you sir this helped me a lot in incresing my understanding abt oscillators!... thank u wish too be ur student!..

[@Ashwiniashu1]

thank u sir, for ur wonderful lecture on oscillators

[@kumarprasant7]

May GOD bless u sir..very good effort...thnx IIT madras and nptel

[@AlberTesla1024]

thank you so much for this great tutorial

[@samalrai3980]

thank u sir.......u are a real teacher.....

[@farahuzma3920]

thank you so much.! thanx nptel

[@Aadhyacedt]

@ Rajendra Roul: You can't have any high gain amplifier in the open loop, should be in -ve feedback except comparator. Strictly speaking there is no small signal gain definition for open loop and +ve feedback systems.

[@pratswagh2559]

Its the awsum lecture just should have provided notes in wich whole answer could be seen but hats off ...such big derivation taught damn easily....even i derived the same for BJT as well as FET the answer comes out to be same

[@nirmalkumarsingh1092]

Thank You Sir you are much better than my professor

[@rajendraroul199]

here the feedback gain is infinite..so for even zero or no input signal(ac),there is also some finite output..but my question is that without applying any feedback,if the open loop gain will be infinite,then there should be some output signal(may not oscillating)..?????,but its not occurig..wh its so,,sir!!!!!!!

[@rayhan8701]

Please correct me if I am wrong Well I think that capacitors don't conduct for DC

[@bambinodeskaralhes]

I didn't understand the effect of making A*b greater than 1. As I can see, it seems the oscilation keeps stable even for A*b greater than 1. Is it true ? The wave don't saturate the amp op ???

[@KnowledgeAmplifier1]

Deep Questions for your doubt , you can refer this video kzbin.info/www/bejne/lZivqqSGeaeUnMU

[@syedmuhammadmusab554]

for oscillator u said u need a positive feedback but in phase shift oscillator non inverting input is ground.so i am little bit confuse in it.. reply anyone!! thanks in advance :)

[@soumiksen5811]

I think the equation Vo=R/(R+jXc) is wrong. Shouldn't it be Vo=R/(R-jXc)?

[@DivyanshuPantluvuall]

sir your v3 = v4 as both have same value of v2 + v2/jwcR this is really very confusing to me...... please help

[@hayleslaseguesh7990]

it is not clear

[@sumankumar-qu6qp]

you can use mesh analysis there to find the required result

[@ronijun888]

great!!! it helped me a lot!!! Thank you very much!!!

[@sureshmaruveni7854]

super...lectures

[@video-ll3dy]

how jw come from in voltage value if it is imaginary number

[@ekowarsono3264]

basically I would like under standing for wide electro engineering for the receiver , for the transmiter and the mo dification diagram circuitry.

[@siddharthsvideo]

nicely explained, i have request,plz add tutorial video on CHROMA CIRCUIT OF TELEVISION

[@dhammikaperera4059]

Can anybody explain me the meaning of that theme song , Ohmmm ! My yoga instructor yeld something similar to this when she start the class.

[@abhisekdimri5405]

this is bojan manta before to take food this song..is announces

[@abhisekdimri5405]

Dhammika Perera ....

[@prathimadesu6534]

Great

[@ekowarsono3264]

saya sangat mendukung ada nya proses oscilasi secara gamblang dengan basic circuitry yg sangat jelas.saya nantikan basic kerja buffer driver ,modulator,rf power amplifier ,antena matching , sanding wave radio ,antena transmiter.saya tunggu ya.tks

[@video-ll3dy]

how w and w3 was imaginary?

[@elizabethmstudios8692]

RC secute are nice :D

[@rajjaiswal53]

it would be more helpful, if the professor used pen and paper to explain, nevertheless, it was a good lecture.

[@KnowledgeAmplifier1]

Raj Jaiswal Yes