I like your videos on electronic subjects. In this opamp, some time inverting input is shown lower side with - mark and some time on upper side . Why is it so.
The key to remember is that the op amp is a differential amplifier. It amplifies the difference between the two inputs. As signals are normally referenced to ground, it make sense to connect the non-inverting input to ground. In this way any signal like an audio signal varying up and down either side of ground will cause the output of the amplifier to change either side of ground. If the input was left open circuit, the current required to bias the input stage would cause the input to flow up or down and this would drive the output towards one of the rails.
Yes , there’s a fairly bit inside, but basically they are a form of differential amplifier. www.electronics-notes.com/articles/analogue_circuits/transistor/long-tailed-pair-circuit.php I hope this helps.
The input resistance can be thought of as the resistance at the input of the circuit as seen by the previous circuit stage. It is effectively the resistance seen at the input. Similarly at the output, there is a resistance in the circuit and if a low impedance load is placed across the circuit, then the internal output resistance will develop a voltage across it, heat will be dissipated, and also the output voltage will fall as a result of the potential divider effect. I hope this short explanation helps.
An operational amplifier or op-amp is a DC coupled high gain differential amplifier. It has a + and - input and normally a single ended output. had hoped I had answered this in the video.
Still helping people 7 years later, appreciated.
I enjoy making the videos and the aim is to provide content that’s useful. Thank you for your comment.
This was refreshingly to the point and understandable. Thank you.
Really great video - clear and to the point! Thanks for such a GREAT effort!
I am really glad it was helpful.
Great explanation in a short time!
Glad it was helpful!
Thanks
Concise and to the point thanks I wish If you explain all types in the future you are talented at explaining things! Subbed
We are aiming to do some more full size videos before too long - currently experimenting with the new "#Shorts" format
😄Thanks for this vedio.... good explanation!
Thanks for your comment - very much appreciate you giving the time to make a comment.
Excellent explanation thanks a lot
Glad you liked it
I like your videos on electronic subjects. In this opamp, some time inverting input is shown lower side with - mark and some time on upper side . Why is it so.
Nice video, thanks :)
Glad you liked it!
Glad you liked it.
2:42, why ''+" is connected to ground though???????
The key to remember is that the op amp is a differential amplifier. It amplifies the difference between the two inputs. As signals are normally referenced to ground, it make sense to connect the non-inverting input to ground. In this way any signal like an audio signal varying up and down either side of ground will cause the output of the amplifier to change either side of ground. If the input was left open circuit, the current required to bias the input stage would cause the input to flow up or down and this would drive the output towards one of the rails.
you beat me to it :-)
@@ElectronicsNotes He means there's an error in the graphics at 2:43. It's supposed to be non inverting, it's got the+ and - mixed up
Sir is it a ANDgate logic concept in op-amp,
Not really. An AND gate is a logic / digital circuit, whereas an operational amplifier is an analogue amplifier.
But what exactly is an op amp?? I’m assuming there’s a lot more stuff inside this triangle that allows it to do these things
Yes , there’s a fairly bit inside, but basically they are a form of differential amplifier. www.electronics-notes.com/articles/analogue_circuits/transistor/long-tailed-pair-circuit.php
I hope this helps.
good video!
Thanks!
Ótima explicação .
Qual software usou para fazer a animação ?
Abraços 🇧🇷
We use Adobe Premiere Elements for our video editing.
Thanks. You could have included some practical examples, too.
Thanks - I was trying to keep the video short, but it may be an idea for another video specifically giving examples.
what is input and output impedance
The input resistance can be thought of as the resistance at the input of the circuit as seen by the previous circuit stage. It is effectively the resistance seen at the input. Similarly at the output, there is a resistance in the circuit and if a low impedance load is placed across the circuit, then the internal output resistance will develop a voltage across it, heat will be dissipated, and also the output voltage will fall as a result of the potential divider effect. I hope this short explanation helps.
awesome
Glad you liked the video.
why couldnt the prof just say so....7 lectures and still was like...whats offset voltage and why CMRR
Glad we were able to answer your questions.
But what is an Op Amp?
An operational amplifier or op-amp is a DC coupled high gain differential amplifier. It has a + and - input and normally a single ended output. had hoped I had answered this in the video.
Talk slow what is wrong with these video makers slow isvthe only way you can explain electronics otherwise you are wasting your videos
Slow the video down if your slow..
@@johndoesson: He's a 1st year student, doesn't know that you can set the playback speed. He'll learn about that in his 2nd year.