#75: Basics of Opamp circuits - a tutorial on how to understand most opamp circuits
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- Опубліковано 25 січ 2013
- This tutorial discusses some general rules of thumb that make it easy to understand and analyze the operation of most opamp circuits. It presents some ideal properties of opamps, and discusses how negative feedback generally causes the input voltage difference to be equal to zero (input voltages are made equal by the action of negative feedback). In other words, the output will do whatever it can to make the input voltages equal. Applying this simple fact makes it easy to analyze most opamp circuits. A copy of the drawings can be found here:
www.qsl.net/w/w2aew//youtube/B... - Наука та технологія
I have been in the electronics industry for 50 years and that has to be one of the best tutorials I have seen.
Keep up the great work.
You explained what my ECE professor couldn't in over a week of classes in 13 minutes. Thank you.
pass this video along to your classmates!
@@w2aew I definitely will! Thanks again!
2 wks of listening to my professor- didnt understand
6 minutes of watching this- everything clicks in my brain.
Played at the speed of X2, XD!!
Adam I Ii
Adam I ..... Isn’t that the way learning seems to take place. I too experienced the same feeling from my days (waaaaaay) back in school. I just did not understand why my teachers couldn’t have taught in this way. Even alot of books are hard to learn from because of this......I guess shit happens ....
because you are out of focus in class
yea sometimes i wonder , are these college professors really interested in teaching because so many never bother to boil things down into simple form which i thought was the art of teaching. wtf. if they are not capable of doing this then maybe they shouldnt be teachers.
I have watched a lot of instructional videos which use a technique that you also use and I often add my comment " Please use a tripod". My reasoning is mostly to keep me from becoming dizzy or sea sick. I however complement you on a quite steady hand held camera not producing nausea therefore allowing me to focus on your superb, clear, informative content. Thanks for your well done videos. I always learn from you whether or not I am viewing a topic that I think I already know. Another of your 'characteristics' that I appreciate is that you do not waste words using extraneous babble that distracts from the topic. THANKS again. Many of those other videos I can't return to for more information but I come back to yours over and over. Keep them coming!
I don’t usually comment on videos, but I’ve been looking around for a bit for videos to help me make sense of op amps, and this really did it, thank you so much!
I have no idea why I found your channel just now.. I have been struggling with OPAMPS and with your clear lectures and actual DESIGN showing what is happening really helped me alot! KEEP UP THE GOOD WORK, YOU, YOU SIR! AND please DO MORE!!!
You do awesome videos! Finally found a knowledgeable guy on electronics that doesn't talk weird or obnoxious. Your very clear and easy to understand.
I'm glad you like the video. I hope you enjoy the other 200+ that I have on my channel. An index / table of contents can be found here:
www.dorkage.com/youtube/W2AEW_video_index.pdf
Holy Moly!
try great scott
@@AWESOMEEVERYDAY101 GreatScott is amazing,but too advance for a college guy like me..😂
Love his videos though
Hello sir, I am a beginner and I just want to say thanks for the introduction. I have been reading up on op amps and have not gotten it through my head, and most the videos here on youtube make it too complicated and frustrated. this is by far the best video I found on op amps. So thank you and hope you have a wonderful time
Pure gold. Somewhere back in my Mims days I got op amps wrong and they've been unduly confusing ever since. Finally I feel straightened out. Thanks!
This was one of the best explanations how opamps work. Short and practically useful. The rest shows the data sheet.
I wish I had been able to see this 40 years ago - it would have made a big difference in how I dealt with op-amp circuits!
Was "big difference" an intentional pun?
😂
this is wonderful how you explain, i'm a physics professor too. for fundamental physics and quantum electronics. great job! I loved the experiment you make it after theory solving
Excellent illustration, one of the best OpAmps videos here ever; Thank you !!
I found this extremely helpful. I needed the physical intuition on how the opamp works and this is exactly what I was looking for. Thank you!
Currently an EEE undergraduate student; this video really helped me understand how the op-amp circuit works. Thank you very much for your time and effort!!!
I'm glad this video helped you Ryan. Let me know if there are other topics that you'd like to see a video on. And of course, tell your fellow students too!
***** you're a legend, thanks for putting your time into helping people you don't know. I for one appreciate it greatly.
peter hooper Thanks Peter! I don't think I've ever been called a legend! I'm glad you find my videos useful.
good
Maybe the Best easiest explanation i've seen on op amps !
Finally got to understand how op-amps work with a simple explanation. Keep it up sir.
You're a talented engineer and teacher. I enjoy watching your videos because you offer a wide variety of topics and knowledge in simple and interesting ways. Thanks a lot.
I know it's been almost ten years since you posted this video, but it helped me understand things today in 2022. Thank you.
This has been my most popular video - viewed over 700,000 times over the last 9 years...
Hey Alan, Watched several of your videos today trying to knock some of the rust out between my ears. Just recently got my technician ticket and getting the bug again to return to electronics a bit as a hobby again some 30+ years later, so many cool things to play with! You do an awesome job clearly explaining, thanks for all your efforts!
Best,
- Bill
KI7QOA
great tutorial, one of the best explanations of the basic operation of op-amps I've seen yet on UA-cam. A+
This is a difference between a newbie on Monday but expert on Friday,rushing to post a video about something that he slightly licked himself and someone who has a long years indepth knowledge.You have my respect Sir.
Why does everyone have to over-complicate this stuff, its like they make this stuff hard to learn on purpose. Took me so long to find a good explanation online as to why there is a negative voltage at the output of the inverting amplifier. You explained it well by assuming there is a voltage at (-) and that the output has to go negative in order to make that pin into a virtual ground. Other people have tried explaining it to me by FIRST saying there is a virtual ground and it never made sense to me that way. Thank you so much
This Explanation is spot on!! It saved me hours of time. And we know that Time is money. So this dude saved me a lot of money. Please guys fully view the ads in the video and click on them too, this will support the guy who made this video. Thanks
One of the clearest op amp lesson on youtube! THANK YOU :D
Alan. You do a perfect job of explaining it. I like to watch your videos, it has helped me very much in understanding how component's work. Keep up the awesome work.
This is my favourite EE tutorial video. Your explanations are crystal clear. Thank you so much for making me feel so smart.
Thanks for the informative video! Was able to apply this in comparator circuit for a thermistor controlled fan. Much more sensitive than using a single BJT and easier to adjust.
Great tutorial for learning how to step through an op amp circuit! Thanks for the video!
I'm amping up (pun intended) for my Biomedical Instrumentation final and this was a helpful refresher on some of the basic stuff. You have a very natural, logical and application-based approach to explaining these circuit configurations - it would be AWESOME if you did a few more. Thanks so much!
Well done, good refresher, being immersed in digital for the last 10 years.
Nice. One of the best explanations of basic op amp operation that I've ever heard.
Thanks for posting this, we flew through op-amps when I took circuits two years ago and this made everything make sense again. I might actually finish this controls lab now!
Thank you for this teaching.It is so important to understand it before designing with OPAmps
Excellent Tutorial showing how to put theory in to practice. I like your choice of circuit as it almost cover everything you need to know on opamps. your results satisfy the formula fully. Vout= -Vin(Rf/Rg)+Vref(R1/R1+R2)(Rf+Rg/Rg) by substituting we get
Vout= -4v(20K/10K)+10v(2k2/2k2+2k2)(20k+10k/10k) = 7 Volts which matches your Vout.
Thank you and we like to see more tutorials please ! :-)
Very very good. You're a great teacher. I really look forward to your uploads. Especially stuff for newbies like me! Keep up the great work!!
Thank you so very much for this video (and all the other ones too)! I'm just so glad that knowledge doesn't weigh anything, if not I might have to go on a diet... This really helps a lot! (BTW, thanks to you I calibrated my scope probe, it's really cool to know those kind of things you normally don't look into as an amateur). This is a top youtube channel!
Darn it, where were you 40 years ago when I was trying to figure this stuff out? =:o}
Guess he was either at tektronix or in college 🤣🤣🤣
Your description is better than mine. I have been teaching beginning Op
-Amps for 20 years.
I'm glad you liked it. Please feel free to use my description with your students, or even share my video (and my channel) with your students. And of course, if there's a topic that you think would make a good video (that would help your students) please let me know.
Wow - I finally got the "amp" portion of the device name! Yet another great bit of info - THANKS!
Love the way you explained this. Great job. Well done.
One of the best op-amp explanation. Hats off
You are one helluva good teacher. :) I've learned so much watching your videos.
"This wasn't meant to be a tutorial on how to design op amp circuits" Please do one- you are a great teacher.
Very well explained, trying to design a level shift op-amp circuit for a microcontroller and this helped understanding of things again. thanks man. new sub! :)
Great video. I learned a tremendous amount about op amps and integrator circuit. Dont fault author on op amp gain think he got idea that is next needed topic.
This is a well scripted and executed tutorial that will last a long time in electronic education, not taught as well in ordinary schools!
Thank YOU!
Using O-SCope to present what You are talking about is the way this topic should be explained.
If you ever have time for more videos about Op-Amps, i will be more then happy to watch it, as for me this are the most difficult EE components to understand.
Great tutorial, I feel like I have struck gold here !...cheers.
👍 Thanks for the great explanation.. Today I understood how it maintain both non-invtng and inverting same voltage after watching many videos video about Op-amp and why we feed back... Simple things always makes great..
This made op amps make so much more sense I wish I had watched this in school, I never really understood what they did
@9:00 we see the date on your scope: 27-Jan-13. This vid was uploaded the day before that: 26-Jan-13.
This shows that you're ahead of your time. Thanks for the excellent video.
Love your videos! You are an excellent teacher sir! 👏
Awesome video! Very interesting. Hope you keep the op-amp videos coming- Can't wait to see more!
thank you very much for up loading a great video by which the op amp student can gain value able basic knowledge of op amps
Thanks for another excellent video. Your tutorials are very helpful to me. I would enjoy seeing more about Op-Amps.
thank you for sharing your knowledge and wisdom.
It's was very helpful and easy to understand for someone like me who is really a novice. Great stuff!! Thank you.
Once again, greatly explained, greatly shown, just great, keep it up!!! Personally I am unable to design analog stuff from scratch, but take plenty of circuit bits and pieces from here and there on opamps and anything I can... and put them together to work. With this simple explanation one can at least understand more about what is happening on circuit when opamps are involved. Thanks once more!!
Great video thank you. You answered some questions I didn't know I had.
nice to be able to get the info about op amps. I am slowly making my way thru your videos. lots to watch yet. after watching the video, i googled for some info on that resistor you never came back to and if i am correct, that with the resistor hooked to Vin would set the gain of the op amp. Hope i got it right. thanks and look forward to more knowledge. 73, ad0am
Wow very interesting analogy! I will keep that in mind. What really got me into circuits was the physical analogies that helped explain them. Like the water analogy etc... so this helps. Thanks.
Very well presented, as always. Thanks for sharing!
Thanks for taking the time to make this video!
Very good and quick information!!!
Thank you! Your interpretation helps me a lot!
excellent information!
thank you for sharing
brilliantly explained, learnt to see the simplicity of the operation
Thanks, awesome explanation you clearly know your stuff!
This video is made very good and can be understand easily. Thanks a lot!
As always; very nicely done Alan.
Thanks
This is always good stuff. Thanks for sharing.
Wow amazing explanation man, really made things click a little better for me appreciate it.
Awesome intro. Very simple and to the point, but not in a way that detracts to the quality of information.
Your videos are always so helpful
One of the considerations for any op amp circuit is the Slew Rate. Many popular Op-Amps have a Slew Rate 0.5 Volts per microsecond. While this may work with audio circuits, it's not a suitable Op Amp for integrators and other math related circuitry. While this video does touch on the basics, characteristics such as latch up can happen with Bipolar Op Amps. I've encountered Op Amp IC's with their tops completely blown away. So without any further discussion, if your interested in Op Amps, there are many good titles to choose from. While You tube can teach and inform you, it's good idea to read about Op Circuits too.
The way you explaining is awesome ...:)
and found best of UA-cam in these.
It's my humble request that, it will be very helpful if you can explain how to find the input impedance of op-amp.
Thank you.
I am so lucky to find this explaination
sweet this is exactly what I needed. thank you brother, very well explained
another great video, very good explanation, thanks!
I loved the real life breadboard examples. Great vid
Another well made video Alan. Only wish I had had that basic description when I learnt op-amp theory at TAFE.
Very great video sir...
I am studying BE-EE now....I am in 2nd Sem.
I was bored with OPAMP and its basic..
But after watching this video ..It seems interesting..
Thank You...For such interesting video.
my man you know what your doing, i think you just saved my grades
Thank you for your time that you cannot replenish making this great video.You can always make up money some where and not time!
Exactly what I needed to know. I am an amateur radio operator who has used a simple dual op-amp ckt to pre-amplify microphone inputs. The output level was too high and adjusting the second stage of the op-amp feedback to lower the overall gain was the right move.
Later, I nearly fried the input dual op-amp ckt in one of my radios. I still have near-perfect operation, but the is now a 2-3khz noise present. I need to understand what component might have been fried in the ckt that needs replacement. This ckt, by design, has a single component that is two diodes in parallel and reversed from each other shorting the inverting input and the output. in parallel with that diode pack, in the feedback line is a resistor and a capacitor (100k & 390pf). I am still trying to figure that out, but this helps (current limiting?).
Thank you for the short, practical explanation.
Thanks for the easy explanation!!!
Great video!
I'd also love to learn more about Op-Amps.
Thanks.
Solid explanation! Thank you very much;)
Thank you! It is extremely valuable!
Awesome explanation!
Very helpful video. Thank you!
thank you for this informitive video. keep up the great work, it helps.
You are a gentleman and a scholar.
not an acrobat?
Great great video. I now understand op-amps a lot better. Thanks!
Thanks for your clear explanation!
wow you are grate cos you actually show the logical thinking and the physical circuit working as well love it . thanks for this .
I try to do this with all of my videos. Thank you for noticing.
w2aew cool please don't change it. cos a lot of channels will either just show you the practical or the theory only . keep it up .
Very helpful video, with multimeter and oscilloscope, thank you!
This is So Good!!
so Nicely done
Impressive demonstration!
incredibly helpful. much appreciated.