The video solution of the practice problem : kzbin.info/www/bejne/rafbo2WtfcufqLMsi=ta8xrg-VeGlfZ5rb The timestamps for the different topics covered in the video is given below: 1:00 Op-amp as Differential Amplifier 6:30 Application of Differential Amplifier 9:35 Example 1 11:30 Example 2 (Effect of Biasing Voltages on output) 13:31 Example 3 (For practice )
@hitman27545 жыл бұрын
I face problem "in seeing resistance from this side " the input resistance is this ? Which video should I watch
@hitman27545 жыл бұрын
Sir please reply 🙏🙏🙏
@jatinbhatt78264 ай бұрын
14:00 it can also be solved by knowing the fact that all resistances have equal value and therefore it works as an adder ckt at both inverting and non inverting terminals. Hence V+ and V- can directly calculated as 9v and -5v .
@priyanshuparikh81453 жыл бұрын
For those who don't know whats RTD : Resistance thermometers, also called resistance temperature detectors, are sensors used to measure temperature. Many RTD elements consist of a length of fine wire wrapped around a ceramic or glass core but other constructions are also used. The RTD wire is a pure material, typically platinum, nickel, or copper.
@uniqueeducationcorner975 Жыл бұрын
Thank you brother your comment helped us
@sk.iftekharulislam36789 ай бұрын
The homework problem solution is 4V..... individually solving the inverting part as well as the non inverting part and then summing them up together... It was a good exercise indeed....Thanks a lot and grateful for all these intuitive videos, saves hours from scattered and motionless studying...
@parthapratimboruah6413 жыл бұрын
The answer is 4V. While calculating ....Rf = 1kiloOhm and Ri = 1 KiloOhm parallel 1 KiloOhm = 0.5 kiloOHm. And while calculating the voltage by the non-inverting input first use voltage divider (you will get 2V, 2.5V) then superposition theorem (consider the other two resistors as in parallel) ( 1 + 1/(1 parallel 1)) x (2V + 2.5 V) = 3V. Then at last V output because of that ( 1 + Rf/Ri ) x (3V) = 9 V. From inverting terminal we get Vout = -5V. So, the final answer if 9V + (-5V) = 4V.
@yonatantamiru7756 Жыл бұрын
on inverting part we get vo1=-5volt and non inverting part weget vo2=9volt , in total giving 4 volts
@hitarthanandrohra8846 Жыл бұрын
how can both V(non - inverting) and V(inverting) terminals have different voltages? as per the virtual ground/short concept both V+ = V- in terms of magnitude provided there is nothing mentioned in the question that these both are not equal. According to the basics of Op amps, voltage at inverting terminal is always equal to voltage at non - inverting terminal
@roshan459 Жыл бұрын
@@hitarthanandrohra8846 oh, yeah!
@jatinchauhan6902 Жыл бұрын
Parallel me thori hai Bhai dono 1 k ohm
@taravanova Жыл бұрын
@@hitarthanandrohra8846 I believe it is because the principle of super position is being used. In steady state, v+ and v- probably are equal. To solve the problem more easily, we calculate how the system would respond if various input voltages were grounded (giving different values for v+ and v-), then sum the results.
@rudeviper5 жыл бұрын
I watched this whole palylist of 32 videos and my concept of opamp is clwar now . I am not preparing for gate but i am in 1st year of electronics in IIT BHU .
@pravatkumar25756 жыл бұрын
Thank you sir.I learned about opamp easily from your videos.The answer of the example 3 is 4v.(V total =V1+V2+V3+V4=-2v-3v+4v+5v).
Ye 1/2 ka factor, jo last two terms me aaya h, wo kya parallel resistance addition ki wajah se h?
@vatsalagarwal27585 жыл бұрын
@@voldemort7443 haan video dhang se dekh samajh aajayega
@bharadwajkv46625 жыл бұрын
@@vatsalagarwal2758 the answer is 1v bro
@RiteshYadav-rc1np3 жыл бұрын
for those who are not able to solve : consider the voltage Vx ( hope you know where is the vx) 2-vx + 3-vx = vx-vo vo =3vx-5 second equation 4-vx + 5-vx = vx vx= 3 put this value in first eq .
@manikanthbolem13283 жыл бұрын
thank you vroo
@chitrasingh92002 жыл бұрын
If it is right answer then video of summing amplifier is quite complex..superposition theorem,long equation
@shubham_2337 Жыл бұрын
@@chitrasingh9200 yeah true...no need to solve by superposition😇😇
@arshmohan4327 Жыл бұрын
bhaiya ji answer hi likh dete poora
@arshmohan4327 Жыл бұрын
@@manikanthbolem1328 bhai yeah bhi solve nahi hua tere se
@sumantasarkar98616 жыл бұрын
Basically i am a maths student and tomorrow I have physics exam .... And the topic opamp is in it... I just see these videos and I have confidence that I am gonna pass... The explanation is too good and too easy to understand.... Love it so much ... And thank you....❤❤❤
@ALLABOUTELECTRONICS6 жыл бұрын
Wish you all the best for exams.
@hiteshsaini54526 жыл бұрын
answer is 4v .and i would also suggest u to put more questions of this type for practice.
@harindudilipa15593 жыл бұрын
Hey can u explain me im stuck i cant find the answer
@waraysplayground263 жыл бұрын
Yeah, I got that answer by using nodal analysis. Lesser solutions... First, I solve the voltage at V+ using nodal which is 3V. Then, because it is a negative feedback V- = V+. So, voltage at V- is also 3V. Again, to solve for Vout, using nodal, the answer is: (2 - 3)/1k + (3-3)/1k = (3 - Vout)/1k, Solve for Vout, is 4.0V... ;')
@sukritihans84843 жыл бұрын
@@waraysplayground26 it might have been a typo, but ig that should be (2-3)*. Thankyou so much !
@priyanshagarwal56823 жыл бұрын
@@waraysplayground26 will Ra be equal to R1+R2?
@waraysplayground263 жыл бұрын
@@priyanshagarwal5682 , actually I didn't rely on the formula. I stick with the nodal analysis when answering op-amp. Ra is not equal to R1+R2 here. :)
@tazrilali15133 жыл бұрын
I really love the op amp playlist. Everything is so simply explained.
@niknam.7 ай бұрын
Thank you SO MUCH for explaining this 9:20 diff issue. I spent too much time not understanding what the problem was in my circuit! Thank you!!!
@Jada.Mohini10 ай бұрын
Sir the way you are teaching is very simple and the explanation is too good ...... Thank you so much sir 🎉🎉 The answer to the last que is 4v sir.
@Sofia-ee8vo5 ай бұрын
Can you explain how you got 4v 🥺..
@hridaymittal20805 жыл бұрын
Thanks for clearing Basic ideas. Answer of given problem is 4V.
@mustafamontaser49555 жыл бұрын
thank you very much for your perfect explanation your follower from EGYPT
@teja90174 жыл бұрын
Nice!
@varunv63094 жыл бұрын
Where u studied
@SGTVNewThinking6 жыл бұрын
Sol:- Resistors value is always 1 in question Applying super position theorom at uper node where (-) sign I2+I3=I1 (2-V)/1+(3-V)/1=(V-Vo)/1 5-2V=V-Vo -Vo=5-3V Vo=-(5-3V)-------1 Now apply down positive lower side superposition then I4+I5+I0=0(inside flow current is 0 in op-amp) Now, Voltage is same at both point according to rule (4-V)/1+(5-V)/1+(0-V)/1=0 -3*V=-9 V=3 Put the value in equation 1 Then Vo=-(5-9) Vo=4v Is correct ans
@antaradey12745 жыл бұрын
1v aa raha ha, Eqn 1 me for inverting- Vo1= 5 hoga,waha 5-3v kyu ho raha ha
@debangshudutta35674 жыл бұрын
yes it is correct
@dheerajkumarbaghel_01984 жыл бұрын
@@antaradey1274 yes
@sashipreetamnekkanti77993 жыл бұрын
why are you keeping solutions
@danielmacfarlane45753 жыл бұрын
I got 4 Volts which can be arrived at intuitively or using math. Here is my solution: This solution demonstrates that the total output is the sum of the outputs for each respective input. Vout = V2out + V3out + V4out + V5out Each output can be considered as 4 individual cases 2 cases for the Inverting Summing Amplifier and 2 cases for the Inverting Summing Amplifier. First consider the Inverting Summing Amplifier cases: V2out = - V2in x (Rf/R2) = -2Volts x ( 1/1 ) = -2 Volts V3out = - V3in x (Rf/R2) = -3Volts x ( 1/1 ) = -3 Volts In both cases the first term represents the input voltage, 2nd term the gain for each input voltage. Second consider the Non Inverting Summing Amplifier cases: V4out = + V4in x (Rg/ (Rg + R4)) x (Rf/R4 + 1) = +4 Volts x (1/2) x 2 = +4 Volts V5out = + V5in x (Rg/ (Rg + R5)) x (Rf/R5 + 1) = +5 Volts x (1/2) x 2 = +5 Volts Note, Rg represents the resistor tied to ground. In both cases the first term represents the input voltage, 2nd term the voltage divider, and 3rd term the gain for each input voltage. As mentioned earlier, the total output is the sum of outputs for each respective input. Vout = V2out + V3out + V4out + V5out Vout = -2 Volts - 3 Volts + 4 Volts + 5 Volts Vout = 4 Volts
@indrajeetkumar8917 Жыл бұрын
One resistance is already ground. If we tied to 5v resistance to gnd then the both resistance will be in parallel so the equivalent resistance will be 1Kll 1K= 0.5K
@NirmalKumar-wm2gr2 жыл бұрын
After watching 4 op-amp videos, now I am addicted to the introduction music :))))
@satyakumar75235 жыл бұрын
we can solve this problem by using summing amplifier. For inverting amplifier Vout= -Rf/R{v1+v2+v3} where R=same for all. similarly for non inverting Vout={1+Rf/Ra}×{v1+v2}/2. where R is same for all. Finally thank you sir for providing video. It is very clear to understand and learn.
@adjeifrancis68575 жыл бұрын
why v3 in the inverting amplifier?
@patrickfeeney4180 Жыл бұрын
Which resistor is Ra on this case?
@vanhoangtran8783 Жыл бұрын
I calculated in this way : V_out = - 2 - 3 + (1/2/(1+1/2))*(5+4)*(1+2/1) = 4 V. Thanks for this video !
@miqdadphysics56243 жыл бұрын
Answer is 4 v, using the superposition principal at each input,then find their superposition. Amazing content 💖
@thraithashakam963 Жыл бұрын
Thank u so much sir! I had trouble in linear circuits. By today my trouble was cleared. Once again tq sir!
@nishapawar33685 жыл бұрын
I enjoy this music every time....it makes me happy😺
@mrtelcom40053 жыл бұрын
without understanding..?!😂😂😂
@nishapawar33683 жыл бұрын
@@mrtelcom4005 no...I understand these videos :)
@makshithsaai28213 жыл бұрын
Op-amp explanation is awesome sir , it helped me a lot .
@mausamkumari46414 жыл бұрын
answer is 4 , it seems easy by ur good explanation... Thanks sir
@prashikkhare142 жыл бұрын
V02 is at non inverting (1+Rf/R1) *vin So it is not 9v it's 18 . 18-5=13v
@th3airraidsir3n55 жыл бұрын
Thank you so much! I always had trouble with understanding op amp circuits, makes perfect sense now!
@th3airraidsir3n55 жыл бұрын
Don’t know if you already have but would you make a video about RC parallel circuits? I have no clue what they do or how they work I want to understand from an AC standpoint as I am particularly interested in audio circuits.
@fusedaatma4 жыл бұрын
For inverting terminal inputs, one can also use summing amplifier concept to find output. Anyways thank you so much AAE.
@chidanandadatta46954 жыл бұрын
We can also follow basic method from where we derived basic formula (kcl+super position theorem)..ans 4.... thanks a lot for this valuable lecture
@sohamghag172611 ай бұрын
Correct bhai
@Market1216 жыл бұрын
Ans 4v -2-3+4+5 = 4volts When consider 2v Vout = (-1/1)*2 which is 2V when 3v Vout = (-1/1)*3 which is 3V When 4V Vout = (1+(1/1))*V' where V' is get through voltage divider rule (Same resistance/Total resistance)*total voltage which is V' =(1/(1+1))*4 =2V so, when 4V consider Vout = 2*V' =2*2 =4V When 5V V' = (1/(1+1))*5 =5/2 =2.5V then Vout = (1+(1/1))*V' = 2*2.5 = 5V so total Vout = -2-3+4+5 =4Volts
@aadityavaidya13187 ай бұрын
Thank you boss 🫡❤
@jaisejohnson5 жыл бұрын
wow such a fine video.This is the best video I found on the topic.Thank You.
@tirthzaveri35674 жыл бұрын
thank you sir i wil gate 4V and also thank you for this video series of (OP AMP)
@zvirus00745 жыл бұрын
Vout = 4V Through applying the superposition theorem for each input voltage.. We will get 4 output voltages.. Combining all these output voltage... The result will be = -2-3+4+5 = 4 V
@parvezmahmud69634 жыл бұрын
How? I guess, 1V Because the v3 (which is connected to the ground) of the non-inverting terminal has effect on the input voltages.
@greninja26074 жыл бұрын
@@parvezmahmud6963 yeah 1 v is the answer
@SuPeRTRoNeRD4 жыл бұрын
@@greninja2607 Okay great, that is what my answer was as well. Thank you very much!
@prashikkhare142 жыл бұрын
V02 is at non inverting (1+Rf/R1) *vin So it is not 9v it's 18 . 18-5=13v
@shreyaagrawal28305 жыл бұрын
the videos are really good. the output voltage in the last question is coming as 4V for me...is it right?
@kishanprasadappana20933 жыл бұрын
Yeah
@AYUSHSINGH-pv3pl3 жыл бұрын
yupp
@saptarshisahoo50756 жыл бұрын
Thank you...your videos are best. and Answer is 4v.
@shobhitpandey88215 жыл бұрын
Answer is 1 volt -5 from inverting input terminal and 6 for noninverting input terminal
@Harshavardhan-zr2ip3 жыл бұрын
V3=0, V=(v1+v2)/2
@shaktisiwach60975 жыл бұрын
A huge thnxxxx to uh sir.......i dnt hv words to express how much ur video lectures had helped me ....uh hv made electronics so easy nd interesting for.....student like...me.........😊😊😊....
@sreedharsmarts91403 жыл бұрын
Sir ans Vout is 4V And tnks soouch for this all op amp concept explanation
@anushrigupta75393 жыл бұрын
Can you explain how you got 4V ? I literally got confused by seeing the circuit.
@johnkyingilisi43952 жыл бұрын
I get 4V too. With love and respect from Shiraz
@bhartibhavnani3993 жыл бұрын
Ans is 4V seems little late 😅 Great way of teaching Suggesting u to make videos on other parts of physics also it will be great 😄
@saifkhan-xf6qb5 жыл бұрын
In the examples you have solved by using superposition i.e solving sources individually. These can be solved by using formulae derived for difference amplifier i.e. Vout= Gain ( V2-V1). And Gain = Rf/Ri
@prathamdabee74762 жыл бұрын
Can you show me how to do it
@prathamdabee74762 жыл бұрын
Please
@KoushikMalOfficial6 жыл бұрын
your teaching skill is great.. we need more videos upon electronics
@greeshwarrs64695 жыл бұрын
u completely rocked and made me understand a concept in practical manner instead of sticking only to theory❤❤❤❤
@tpsicmin2 жыл бұрын
Thank you Sir Amazing Explanation
@stockfish33794 жыл бұрын
Such a dedicated teacher u are
@Phyamath Жыл бұрын
thanks sir, I appreciate your method of teaching, answer is 4v, plz acknowledge
@satyaveersinghrawat43984 ай бұрын
Hi Sir thank you for such a nice series of lectures. Doubt are 8:07 Min Onwards 1. How Input impedance seen from upper terminal is R1 and lower is R1+R2. How? 2. Similarly at 8:24 Min how input impedance is 2R1. Thanks in advance.
@ALLABOUTELECTRONICS4 ай бұрын
To find the input impedance at the upper terminal, just connect external source at that terminal. The ratio of that voltage to the current supplied by that source will give the input impedance seen through that source. And while calculating that, we will consider all other sources in the circuit as zero. That means the non-inverting terminal will get connected to ground via two resistors. So, if you apply the KVL at the inverting end, then you will get Vx / Ix = R1. Likewise, on the lower terminal, if you follow the same procedure, at the inverting end, you will get Vx / Ix = R1 + R2. Similarly, at 8:24, to find the input impedance, you need to find Vin / Iin. Because of the virtual ground, the voltage at the inverting and non-inverting node will be same. So, while finding input impedance, for simplicity, you can assume that both are connected together. So, whatever current (Iin) that is passing through upper resistor R1, same current will return through lower resistor R1 and will go back to the negative terminal of Vin. So, if you apply the KVL, then it is Vin = 2R1 *Iin. Or Vin / Iin = 2R1. I hope, it will clear your doubt. If you still have any doubt, then let me know here.
@satyaveersinghrawat43984 ай бұрын
@@ALLABOUTELECTRONICS Thank you for your response. I have solved all the cases according to your guidance and quite satisfied. For 8:24 Min, I am satisfied with the logic but still not able to figure out that what is happening with R2 which is connected between non-inverting terminal and ground. Current through that R2 will be 0, it is giving me a bit dissatisfaction even though I know solution is correct. Can I share the solutions (by any means), what I did, for crosschecking the correctness?
@shreeyashrasal85744 жыл бұрын
Thanks sir, I liked the way of teaching and explaining every bit in detail. Vout is 4V.
@eitantal72611 ай бұрын
This video makes it more complicated than it has to be. Here's how to understand it simply: When you have an op-amp with a negative feedback, it will copy the voltage from + into -. *It's that simple*. All that's left is to figure out what the voltage on vout is.
@msrizwi78693 жыл бұрын
And thanks for helping us by such a great teaching style
@oinamdhananjoysingh37155 жыл бұрын
in the example1..v(out)=6v but if we apply the formula for v(out)=R2/R1*(v2-v1),ans=5v...or i am confusing about R2.. at 6:22 min u expalin this formula.U mean same value of R2 in the formula derived at 6:22 min.
@radhey04ec4 жыл бұрын
Since last week I am looking for the Answer How designer decide to use R1 and R2 at Non inverting terminal as Voltage Divider for achieving differential amplifier??! & I found here Thanks dear
@kishorgoodday2763 жыл бұрын
From you i got answer , i made correct in v01 and gone wrong with v02 bcz i not use voltage divider now i got ...thanks dear
@saikumarsingam90105 жыл бұрын
In the derivation part you considered resistance values are equal in the input of V2 and input of V1 and equal value as Rf.. But in the calculation part you have taken different resistance values for everything.. Is it necessary to take same resistance values for input of V2 and V1 and Rf?
@anon0008911 ай бұрын
you've probably completed your degree by now, but if anyone else has the same question, this is just the method for derivations I'm pretty sure, you start with the general case and derive the particular cases (when input resistances are equal).
@tanishqchaudhary82543 жыл бұрын
ans of last ques is 4 V and Thank U sir for this quality of lectures U r best
@raunaksharma4984 жыл бұрын
Sir, we can also get the subtraction operation done by using the approximation R2/R1 >> 1 so that, 1+R2/R1 = R2/R1 and hence, Vo = (R2/R1)(V2-V1).
@phitsanuboy3 жыл бұрын
Sorry for my newbie,I also confuse about R2/R1 >> 1, it mean 1+R2/R1 -> 1+1 = 2 the result difference between (R2/R1) -> 1 and (1+R2/R1) -> 2 quite a lot... In my thinking..
@VersatileAnthem4 жыл бұрын
i got the actual proof from your video.thank you so much.what reference book do you follow ?
@vinaykumarkajana78815 жыл бұрын
I dont know anything in analog electronics but now i am getting through it Thanks...
@aritradas95235 жыл бұрын
tere bhai jaisa koi hardich nhi hai
@karthikbabu90534 жыл бұрын
Simple and precise explanation. Really superb👍Thank you✌️
@avneetkashyap70013 жыл бұрын
hello @allaboutelectronics can you please comment me why V02 process of solving is different in example 1 and example 2 thanks for such an hard work
@kendolemalleswara6 жыл бұрын
in syllabus all cover to lecture for better understanding. these lecture are very good
@hemlocklannister62065 жыл бұрын
Answer is 4v .. thanks man.. amazing video
@jayakumar67804 жыл бұрын
Sir if u provide videos on module based it will be added advantage... Any how your videos are like bible for electronics students and engineers too..
@nikitameena30612 жыл бұрын
Sir if V1 is grounded Vo=-5 and when V2 is grounded Vo=27/2 so overall V1+V2= 17/2 Is this right ?
@mdminhajsk12654 жыл бұрын
Best video in you tube, thank you so much
@RishabhSharma102255 жыл бұрын
Amazingly explained. Thank you so much !
@missakasms Жыл бұрын
Here, to the ones who are struggling to get the answer, the answer is 4V, you get -5V from V1 and +9V from V2, add them together you get 4V
@synecdocheanimacion902110 ай бұрын
how can someone struggle to solve that really I'm cse 1st year that too in a private college still I was able to it solve it mentally... in the internals itself they ask questions much harder than this I wonder what they will ask in endsem 🙂
@omarrz943 жыл бұрын
Hi! what happens if V1 is fed with AC and V2 with DC? I am trying to solve an exercise in which V1 branch has a capacitor along with that 'R1', so I assume that when charged it releases DC but I am confused by how it works... seems like a band pass filter maybe?
@ALLABOUTELECTRONICS3 жыл бұрын
Without looking at the circuit, it is difficult to tell the working of the circuit. But many different types of circuits related to opamp has covered and many examples have been also covered. You may check the opamp solved examples playlist. Perhaps you will find a similar type of example you are looking for.
@omarrz943 жыл бұрын
@@ALLABOUTELECTRONICS I'll check them! thank you
@curiousbud23665 жыл бұрын
Is 4v the correct answer 🤔
@motofriend-vlog85664 жыл бұрын
Getting equal gain means we have apply V2= R2/(R1+R2) That mean whatever the value is in the voltage.
@dalenassar9152 Жыл бұрын
Among other things, isn't the input resistance into the non-inverting input equal to the Thevinin resistance of the two resistors of R1, R2 of the voltage divider? ANOTHER GREAT VIDEO!!! THANKS,
@lijinavajeev599 Жыл бұрын
Excellent explanation
@vaikh84505 жыл бұрын
Sir if we are applying the formula R2/R1(V2-V1) then why the answer is different
@prabhatp6543 жыл бұрын
bro, the resistances are different.
@agstechnicalsupport6 жыл бұрын
Great explanation of differential amplifiers.
@aashutoshpradhan17632 жыл бұрын
4 v is ans.....great explanation
@manojgs20174 жыл бұрын
Really awesome and very informative videos... nice presentation and the groundwork is highly appreciable. The best KZbin channel for those who want to go deep in to the World of electronics .👏👏👏 Thank you mannnnn!!!!!!💥💥💥💥
@bhargavtharun5 жыл бұрын
hello sir your analytical approach is perfect but when we do in simulation for 2nd example circuit the out is not 12v it is 10v
@ALLABOUTELECTRONICS5 жыл бұрын
Because, often the saturation voltage of the op-amp is less than the biasing voltage. In fact, it's true for most of the op-amps. There are some rail to rail op-amps, whose saturationvoltage is close to biasing voltage. That's why you are getting 10v.
@GAUTAMKUMAR-or7rh5 жыл бұрын
Answer of 3rd problem is 4V......is it correct...?
@noweare16 жыл бұрын
The last example is more interesting than it looks. The feeback ratio for the inverting input is not the same as the non-inverting. The ratio for the non-inverting side is Rf/ (1k // 1k) => 1k/0.5k since we have at the inverting input two 1k ohm resistors in parallel to ground. When I first did this problem I got the wrong answer.
@tanujkasal5 жыл бұрын
Thanx ,I was facing the same problem.
@MANISHKUMAR-ee2ty2 жыл бұрын
Thanks you sir! for this lecture. answer of the last question is 4V. is it correct?
@ALLABOUTELECTRONICS2 жыл бұрын
Yes, that's correct.
@tharindudissanayaka58636 жыл бұрын
excellent explanation. thank you sir.
@codebrex1715 Жыл бұрын
Dear Sir, I have a problem on Differential Amplifier. This is from Robert Boylestad. Determine the output voltage of an op-amp for input voltages of V i1 = 150 uV, Vi2 = 140 uV. The amplifier has a differential gain of Ad = 4000 and the value of CMRR is: (a) 100. Ans: (i) 45.8 mV (when Vd = 150 uV -140 uV) (ii) -34.2 mV (when Vd = 140 uV - 150 uV). How is it possible that we end up getting two different Vo values (one positive and negative with different magnitude). Which one is correct?
@Swagstar626 Жыл бұрын
Vout=gain(V noninverting - V inverting) based on input given to the answer can be negative or positive but not more than baising voltage
@Gabriel-V4 жыл бұрын
never experienced such perfect explanation
@PTeja-tr1qw5 жыл бұрын
Thanks alot for better understanding ans is 4v
@suvardhansingh75286 жыл бұрын
Sir, in tha example 3 for practice hare is a problem in case of non inverting v(out)=(1+Rf/R1) so for R1 hare is two resistant how to separate them??
@ALLABOUTELECTRONICS6 жыл бұрын
It will be the parallel combination of two resistors. (1k || 1k). Answer of that question is 4V.
@suvardhansingh75286 жыл бұрын
ALL ABOUT ELECTRONICS yes sir ( - 2-3+4+5) =4 Thank you so much sir, your op-amp video is very helpful for preparation JAM exam
@sarathkogila62226 жыл бұрын
Very nice example sir
@SumitChaudharykPS6 жыл бұрын
ALL ABOUT ELECTRONICS Sir iss mei do voltage hei na 4v and 5v uss ko kese solv. Kare
@adda4career6 жыл бұрын
@@ALLABOUTELECTRONICS sir in example 3 while we considering 2Volts source alone at R1 resistor place one 1k resister is connected to ground. Is there any effect of 1K resistor on R1? What is value of R1 in that case? Please give a solution to me sir
@himanshigoplani34832 жыл бұрын
I got the answer as 4V ... And I guess that is correct ... But may I know , will there be no effect of bias voltage +-15V on the answer ....??
@missstorytellertelugu74736 жыл бұрын
Sir why can't we use direct formulae to the examples I.e vo=(-rf÷r1)(v2-v1) sir plz tell Me..
@ALLABOUTELECTRONICS6 жыл бұрын
It can be used only when resistors used in the feedback and voltage divider circuit at the non-inverting terminals are equal. Let's say in the feedback the resistor is R2 and resistor R1 is at the inverting terminal. If the same resistors are also used as a voltage divider at the non-inverting terminal then also, you will get that expression. Else the expression will be different. therefore it can't be applied directly. I hope it will clear your doubt.
@missstorytellertelugu74736 жыл бұрын
@@ALLABOUTELECTRONICS tq sir For clarifying my doubt tq..
@parvezmahmud69634 жыл бұрын
After addidng extra resistance to the positive terminal, why there is no change in the equation of V1? Previously, V+ was V2 directly, now it's not. As they are virtually grounded.
@tamannasharma15683 жыл бұрын
sir, as we put feedback in the circuit at the output terminal, then the OPERATIONAL AMPLIFIER will only give the output after the feedback signal is reached to it and not before?
@ALLABOUTELECTRONICS3 жыл бұрын
It happens very instantaneously. ( The operation of circuit with feedback)
@sagnikmukherjee66044 жыл бұрын
4V. Please let me know if its correct.
@Seerat.Bashir4 жыл бұрын
The practice example... Do I have to find four output voltages corresponding to 4 input voltages acting one at a time.... N then add all of them?
@mahendraverma59316 жыл бұрын
4V Sir, this video is very heelpful to me......thank u
@me_suryans11 ай бұрын
Why not explaining the Superposition theorem, Im first year Btech student following this Playlist.
@darlingbrother48526 жыл бұрын
Superb sir.....excellent explanation.....thanks a lot....
@sohammitra86572 жыл бұрын
The intro music is very good...
@djchutki72626 Жыл бұрын
thankyou sir. my answer is 4v.
@YahiaAlwarha9 ай бұрын
I have a question in a minute 8:18 you said Zin=2R1 why ? can you explaine its please?
@BhanuPrathap5 жыл бұрын
At 4:58 Are the resistances R1 and R2 are connected in series ,that means no current through the op amp inverting terminal .
@ALLABOUTELECTRONICS5 жыл бұрын
Yes, here it has been assumed that the op-amp is ideal.T hat means no current is flowing into the op-amp terminals.
@BhanuPrathap5 жыл бұрын
Thanks for clarifying 😀
@sudeshnaguharay51876 жыл бұрын
in the inverting amplifier video you have explained about the buffer circuit , there you have used the same circuit as that of a instrumentation amplifier and here you have short circuited the inverting input voltage to that of the vout. please explain me this point...
@ALLABOUTELECTRONICS6 жыл бұрын
That is the design of buffer circuit, where the output is short-circuited with the inverting input terminal and input is applied at non-inverting input terminal.
@YoungsProton5 жыл бұрын
My question to u is... in ideal case, OPAMP should have high input impedance.. Why is the input impedance in differential amplifier low? Even if you dont respond.. Please know.. = Excellent videos... Really helped me to get a clear perspective on OPAMP.. Thank you...
@ALLABOUTELECTRONICS5 жыл бұрын
I have already explained it around 8:00. Please go through it.
@YoungsProton5 жыл бұрын
@@ALLABOUTELECTRONICS Got it.. when I saw your instrumentation op-amp video... Thanks..
@Lina-0254 ай бұрын
Life saving, thank you
@vigneshhere285 жыл бұрын
In this sum on the non-inverting terminal first 4v voltage source acted so short circuit the 5v then the resistance of 1 ohm and 1ohm are parallel then simply it 0.5 ohms then answer will be 8/3 how do u eliminate the 5v source resistance 1ohm????
@JonathanDeWitt19884 жыл бұрын
@All About Electronics How do you make it so the gain factor k = 1? In the adder version of the Op-Amp you showed how to make the gain factor 1. That would be nice here too. Thank you for the good video.
@ALLABOUTELECTRONICS4 жыл бұрын
At 6:30, if you see, when R2 = R1 then gain will become 1. That means Vo = V2 - V1. I hope it will clear your doubt.
@JonathanDeWitt19884 жыл бұрын
@@ALLABOUTELECTRONICS Thank you. I missed that even though it is clearly there in the math.
@kukurei3 жыл бұрын
Can i use this circuit in audio application to cancel out a signal coming in the inverting input by injecting an audio signal in the non inverting input? I want to see if I can use this to cancel an echo or crosstalk?
@ALLABOUTELECTRONICS3 жыл бұрын
Yes. Only thing need to be ensured is that, the gain of the amplifier should not saturate the output and the op-amp should be able to drive the next stage. (The output source current of the op amp should be sufficient to drive the next stage)