4 awesome application of op-amps in circuits

Рет қаралды 38,795

5 ай бұрын

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Uncover the true power of op-amps with me in this video! Forget the generic definitions you've heard - let's dive deep into the practical applications that really matter.
Ever wondered where to place an op-amp in your circuit? I've got the answers!
Many tutorials out there focus on clichéd phrases like "inverting amplifier" or "differential amplifier." In contrast, I'm bringing you 4 real-world applications of op-amps, along with examples and insights.
In this video, you will see how up-amps make us able to build digital weighing scales, how they help us to precisely measure tiny currents, how op-amps help us to estimate temperature, and how op-amps make us able to accurately transfer data over long, long distances up to several miles. This one is my favorite.
No need to fear math - I'm skipping the complex calculations and zooming in on the practical side. From talking about the concept behind op-amps to exploring issues and problems, we're covering it all.
Stay with me on this journey through the essential details about op-amps and ICs. Ready for a blend of theory and hands-on knowledge? Join me as we demystify op-amps and explore the magic of op-amps together!
Thanks to PCBWay.com for sponsoring this video
You will get answers to many questions about op-amps.
What is an op-amp?
How does an op-amp work?
What are the basic op-amp configurations?
What is the ideal op-amp?
What is the gain of an op-amp?
How do I choose an op-amp for my application?
Why feedback is used in op-amp?
How much current can an op-amp supply?
what is virtual grouns concept?
and much more questions.

Пікірлер: 129

@arp_catchall 2 ай бұрын

By far the best video and clearest explanation of these "mysterious" chips. Thanks!

@elewizard 2 ай бұрын

Wow, thanks! It's comments like yours that make creating content so fulfilling.

@Mexzot 5 ай бұрын

An exceptional ability to explain something complex and teach actual understanding through examples. Thank you so much for your work!

@elewizard 5 ай бұрын

Wow, thank you. Glad you think so 😃

@NTMMFTS Ай бұрын

The real-world application explanations are really great!

@elewizard Ай бұрын

Yes, examples make concepts very easy to understand 👍

@peterlethbridge7859 5 ай бұрын

Once again, you have managed to explain a complex subject in easy to understand examples. Thank you so much for your videos, they really are very informative and helpful.

@elewizard 5 ай бұрын

Glad you like them! Cheers 🍻

@user-ju6oh9jv8g 23 күн бұрын

Hey, You're video is really great, i can now finally understand op amps

@elewizard 23 күн бұрын

Glad to hear that!😃

@johnmea5140 5 ай бұрын

Your examples of applying the use of the devices is very good!! Thank you for the great content! I hope you continue to grow your channel.

@elewizard 5 ай бұрын

I hope so too! Thank you so much ❤️

@bayareapianist 5 ай бұрын

One objection to your last application. The idea sounds great. But the resistance of the ADC input is in mega ohms like a voltmeter. The rsistance of a mile of wires could be in 100s of ohms which is neglectable to the ADC's. The noise on the lines however will not let you measure the current accurately. These days the data transmission lines have become differential despite the short application distances. One of the great applicantion of opamps is in differential transmission which i believe you were getting to next in the future.

@elewizard 5 ай бұрын

Yes, thank you for your feedback, I will cover differential transmission in other videos

@SoilHealthpk 13 күн бұрын

Brilliant - Very good presentation. Thank you

@elewizard 13 күн бұрын

Thank you, for watching ❤️

@fredflickinger643 5 ай бұрын

Good synopsis and covering the most used cases for Op Amps.

@elewizard 5 ай бұрын

Glad you think so 😃

@dangdaeed-rh6je 5 ай бұрын

Subscribed. Excellent video sir. Thank you

@elewizard 5 ай бұрын

Welcome aboard!

@qzorn4440 5 ай бұрын

Wow. The LM741 OP-AMP is a wonderful old time device to learn and study many examples. It is a good op-amp to make designs with, as other devices become obsolete the LM741 is still around. 😎 Thank you for the great info.

@elewizard 5 ай бұрын

Yes, LM741 is a great device and is used in nowadays designs. Thank you for watching ❤️😊

@pabloderossi8418 3 ай бұрын

I like the way that you explain, with a good vibe and emotion, great job!

@elewizard 2 ай бұрын

So kind of you dude 😊

@saarike 4 ай бұрын

Absolutely great video about op amps!!!! My humble thanks.

@elewizard 4 ай бұрын

It's wonderful to hear that you enjoyed the video. Thank you for watching ❤️

@KarldorisLambley 5 ай бұрын

this video was a breakthrough experience for me. thanks to it i was able to use a microwave motion detector's reference and output voltages with a 741 as a comparator. thank you.

@elewizard 5 ай бұрын

Great job! It is so exciting to make new things out of stuff like that 😃

@KarldorisLambley 5 ай бұрын

@@elewizard too right mr wizard. for me you are up there with the famous people, like bigclive or mehdi. i love the way you always include fairly simple examples in your vids.

@user-iq4et6zh1j 5 ай бұрын

I can sum up my appreciation in two words. Thank you!

@elewizard 5 ай бұрын

So nice of you ❤️ you are most welcome 😊

@amir2010r 5 ай бұрын

you are great teacher. thank you so much. please keep going and teaching in this manner.

@elewizard 5 ай бұрын

Thank you, I will❤️

@petersdelucaaa2vg306 5 ай бұрын

I always learn from your videos. Thanks

@elewizard 5 ай бұрын

My pleasure ❤️

@jaimerodriguez9141 5 ай бұрын

Very good explanation! Thank you.

@elewizard 5 ай бұрын

You are welcome!

@q12x 5 ай бұрын

Very good ! - make more circuits and examples like these !

@elewizard 5 ай бұрын

Thanks, will do!👍

@murtadhaalkenani3876 4 ай бұрын

thanks for the valuable lessons.

@elewizard 3 ай бұрын

You are most welcome ❤️ Thanks for watching

@Gwijiy 3 ай бұрын

You are a genius , because it requires an outstanding person to explain difficult concepts in a simple way 🙏

@elewizard 3 ай бұрын

Thanks a million! Your support is awesome. Your positive feedback made my day!😃

@salahadinjafar1258 5 ай бұрын

thank you so much for your video .very informative

@elewizard 5 ай бұрын

Your welcome ❤️

@alejandromackay3074 5 ай бұрын

Thanks so much!!

@elewizard 5 ай бұрын

You are very welcome 😊, cheers

@7gurshaansingh6thmarigold58 5 ай бұрын

Thanks sir for sharing this knowledge and understanding of opam. This is the best video on this subject. Thanks 🎉🎉

@elewizard 5 ай бұрын

So nice of you, you are very welcome 🌷

@msg1956 5 ай бұрын

Excellent..!

@elewizard 5 ай бұрын

Many thanks!❤️❤️❤️

@inductr 5 ай бұрын

Nice work!

@elewizard 5 ай бұрын

Thanks a million for your support❤️

@InventorKM2007 5 ай бұрын

You're my teacher and I am now able to use and understand transistors and op amps

@elewizard 5 ай бұрын

It my pleasure, thanks for watching bro ❤️

@HusainAlBlooshi 5 ай бұрын

Thanks!

@elewizard 5 ай бұрын

You are very welcome husain ❤️❤️

@velutumbra 5 ай бұрын

What you have here the best video about opamps I have ever seen.

@elewizard 5 ай бұрын

Glad you enjoyed the video 😃

@CPStudio13 5 ай бұрын

Excellent information as usual. One request. Can you please create video on IC 555 and its inner working principles and application. Thanks and appreciate your work.

@elewizard 5 ай бұрын

Thanks for watching. Yeah, will do

@relativenormality 5 ай бұрын

Excellent - practical examples instead of all theory.

@elewizard 5 ай бұрын

Yes, great point 👍

@eric_d 4 ай бұрын

Most informative video on op amps I've ever seen! It's a shame this video doesn't allow me the option of adding to a playlist, or even to watch later, so I can remember to watch it again. This video answers questions that I've had for decades!

@elewizard 4 ай бұрын

Glad it was helpful! Is it a restriction from my channel?

@flomojo2u 4 ай бұрын

@elewizard Pretty sure this is user error, I had no issues adding the video to my playlist.

@eric_d 4 ай бұрын

@@elewizardIt's most likely YT punishing me for having an ad blocker installed.

@eric_d 4 ай бұрын

@@flomojo2uWhich ad blocker do you use? When I have ABP running a lot of features on YT don't work.

@vishalkumar040393 5 ай бұрын

Learnt a lot about OpAmps

@elewizard 5 ай бұрын

Glad to hear that, keep watching 😊

@bjornwolfhagen1098 5 ай бұрын

Great video!

@elewizard 5 ай бұрын

Thanks!

@abhinabgogoi2000 5 ай бұрын

Please do create a playlist for these videos. Although I know the basic working of most of the components, I have never inplemented in a real project. Thank you

@elewizard 5 ай бұрын

Noted👍

@sweetblues3230 2 ай бұрын

general-purpose operational amplifiers (op-amps) can be used as comparators in certain applications. While op-amps are primarily designed for amplification and signal conditioning, they can also be used as comparators in certain cases where the speed and accuracy requirements are not critical. Op-amps have high gain and are designed to operate in a linear mode, where the output voltage is proportional to the input voltage. However, they can be used as comparators by configuring them in an open-loop configuration, where the feedback loop is not used. In this configuration, the op-amp operates in a saturated mode, where the output voltage swings to its maximum positive or negative value based on the input voltage comparison. Using an op-amp as a comparator has some limitations compared to dedicated comparator ICs. Op-amps may have slower response times and higher offset voltages, which can affect the accuracy and speed of the comparison. Additionally, op-amps may not have hysteresis, which is a feature commonly found in dedicated comparators to prevent oscillation when the input voltages are close. Therefore, while op-amps can be used as comparators in certain applications, it is generally recommended to use dedicated comparator ICs for precise and high-speed voltage comparisons.

@elewizard 2 ай бұрын

Thank you for sharing your valuable knowledge. Thank you again for being a part of the community ❤️🌷

@user-mr3mf8lo7y 4 ай бұрын

Stunning video. Much obliged. I understand it may differ application to application, however, for reference purposes, what (short) list of Op-Amp's you would recommend to keep in our inventories? Thanks,.

@elewizard 4 ай бұрын

Your support means everything to me! Lm339, lm324 and lm741. These are what I always have in my workshop 👍

@awaitingthetrumpetcall4529 3 ай бұрын

I like this guy.

@elewizard 3 ай бұрын

I like you all ❤️❤️❤️

@jlucasound 5 ай бұрын

You Silly Genius! You know so much more than I. I am 61. ❤

@elewizard 5 ай бұрын

So nice of you ❤️😃

@genadigospodinov5467 5 ай бұрын

Thank you! It's the best video I've ever seen about op-amps. I would be glad if you could create more content on op-amps, covering topics like filters, impedance converters, or even ECG.

@elewizard 5 ай бұрын

Grateful for the Super Thanks, you're amazing!❤️ Surly I will make more videos on this subject 👍

@uni-byte 5 ай бұрын

The LM324 is also specialized. It is mainly intended to be used in single supply applications. Without special consideration it will produce cross-over distortion in dual supply applications.

@elewizard 5 ай бұрын

Thanks for the point about LM324 🌷

@lucsteffens 5 ай бұрын

A little support compared to the effort. Enjoy the holidays!

@elewizard 5 ай бұрын

Your Super Thanks is like a burst of positivity - thank you! ❤️

@jameskidd7906 5 ай бұрын

The best place in yourube❤

@elewizard 5 ай бұрын

Wow, thank you ❤️❤️❤️😍

@RexxSchneider 5 ай бұрын

The problem with the differential amplifier used at 44:22 to amplify the load cell is that a gain of 10,000 is very ambitious using an ordinary opamp. The input offset voltage of an LM741 can be as much as 5mV, which if you multiply it by 10,000 will certainly drive the opamp to one of the rails. In addition, its open loop gain can be as small as 50,000 leading to very little feedback for linearising the output. Finally, the circuit you built uses a single supply rail of 5V but the differential amp really requires a dual supply to function properly without creating a virtual ground. More modern opamps can improve on that considerably, but you really should be noting that very specialised opamps are needed to successfully work with such large gains.

@elewizard 5 ай бұрын

Thank you so much for the points 👍🌷

@ajajalam6690 5 ай бұрын

You are an exceptional teacher. I am consistently amazed at how effortlessly you explain complex topics. I wish you could have been my electronic professor during college. Thank you so much!

@elewizard 5 ай бұрын

Glad to hear that, it is my pleasure to help you, cheers 🥂

@dancollins1012 5 ай бұрын

Excellent! Looking forward to future vids. Please explain more about open collector op amps (pros, cons, calcs and considerations), and also introduce more modern op-amps

@elewizard 5 ай бұрын

Thank you for watching, the point is Noted!

@mikejones-vd3fg 5 ай бұрын

thank you, i wanted to know how to measure teensy weensy tiney bitsy currents and ran away when heard to use an op-amp because it sounded complicated, not so much now.

@elewizard 5 ай бұрын

Glad to hear that. 👍

@mikejones-vd3fg 5 ай бұрын

I had to watch the video a few times but im starting to understand better now, have some more questions like that 1k divider network for the shunt example, is that because youre trying to cut the supply voltage to the op amp in half as well? You mention the source voltage for the op amp maybe to high , i assume this was the solution. Anyway thanks again for the useful examples and i like seeing the powersupply you made in use all the time. I made a simliar one with a buck converter and amp meter but wouuld like to add a current contorll. Apparenly theres an easy mod to that 2amp buck converter (lm something something) everyone uses. I think it uses and op amp to do it, yeah it does. Would be cool if you would upgrade yours and show us that mod works in more detail, the videos ive seen just have dance music, albeit the connections are clear, id like to know whats going on you know? kzfaq.info/get/bejne/n92elNGC2LiXYo0.htmlsi=HW4IcL-GYewCpuXZ Thanks again this is my only education in electronics so I appreciate all the information. @@elewizard

@akilliez 5 ай бұрын

Differential and intergrator would have been nice to classify in presentation. I'm only in the beginning so excuse me if you eventually do classify them lol.

@elewizard 5 ай бұрын

Good point!😅

@akilliez 5 ай бұрын

@@elewizard I love your videos!

@AliReza-xl4zw 5 ай бұрын

Did you use LM741 or UA741 to read the current?

@elewizard 5 ай бұрын

It's a UA741

@AliReza-xl4zw 5 ай бұрын

what about the offset or zero drift capability?@@elewizard

@vishalkumar040393 5 ай бұрын

I quick question: At 44:37 you used 10 MOhm and 1 kOhm, to 10k gain. What if you use 100Ohm and 1MOhm ?

@elewizard 5 ай бұрын

The gain will be the same, you will get 10,000x.

@ChandrashekarCN 5 ай бұрын

💖💖💖💖

@elewizard 5 ай бұрын

❤️❤️❤️❤️

@umesh.kumar.naik278 5 ай бұрын

❤

@elewizard 5 ай бұрын

❤️❤️❤️❤️❤️

@bakicandar4607 5 ай бұрын

İt's usfeul contents for opamp

@elewizard 5 ай бұрын

Glad you it was helpful

@gkdresden 3 ай бұрын

The moral of the story is: an I2V converter is much easier to build than a V2I converter.

@elewizard 3 ай бұрын

Yes 😁

@noor_enic 3 ай бұрын

😍😂

@mjarefi 5 ай бұрын

سلام مهندس بیزحمت زیرنویس فارسی هم بزارید خیلی عالی میشه ممنون

@elewizard 5 ай бұрын

Will try, thank you for your comment 🌷😊

@jlucasound 5 ай бұрын

Flip-Flop Multivibrator! There. I said it. 😧🧐🤔🤭🤫🤣

@elewizard 5 ай бұрын

Yeah, its one of op-amp applications 👍

@RezaReza-nf4di 5 ай бұрын

مهندس سلام - من فکر نمی کردم شما انگلیسی را مثل بلبل صحبت کنید من ترکی را بزور یاد گرفتم. خیلی خوشحال شدم .

@elewizard 5 ай бұрын

Glad you think so, I am trying to improve my skills 👍

@selim9220 5 ай бұрын

it is not how u pronounce "determine".

@elewizard 5 ай бұрын

Great point, noted

@user-de8bu5es6f 5 ай бұрын

Zero point sixty nine & zero point seventy two and more crap spoken about the differential o/p. How anybody can believe they are any good at teaching electronics when they themselves have'nt yet learnt the very basics of being able to count is crazy. There are NO tens or hundreds or thousands to the right of the dp. Stop until you have learnt how to count properly.

@elewizard 5 ай бұрын

Thank you for your feedback ❤️

@JD-Reddev 5 ай бұрын

Now I would remind you, brothers, of the gospel I preached to you, which you received, in which you stand, and by which you are being saved, if you hold fast to the word I preached to you-unless you believed in vain. For I delivered to you as of first importance what I also received: that Christ died for our sins in accordance with the Scriptures, that he was buried, that he was raised on the third day in accordance with the Scriptures, ~1. Corinthians 15:1-4 God bless you brother!