Operational Amplifier Tutorial - Basic Op Amp (Part 1)

[321boileranimal]

I'm Learnding

[USMANHEART]

I need the same software that u used in this video. plz tell me the name or link of the software.

[tahirjibranjatt]

@USMANHEART janab bari study ho rahi hai

good keep it up

[MathMatz]

@USMANHEART Just read the title of the window ;)

[USMANHEART]

@MathMatz thanx

[julikiman]

So hard,so good...

[gustavocostaholanda]

Great Video. Thank you.

[johnss]

1 person failed their ECE test

[rdcook89]

Thanks for the great video, saving my butt in Electrical Engineering Core Course!

[wseeback]

Ummm, I am dumb...

[CarlsonYang1]

thanks, better than our lecturer, as we're over estimated........

[demonangels67]

op amp~Puta xDD

[HeavyMetal80sRules]

I appreciated that, Might you put something to clean and amplify Video Sign, your voice reminds me that voices from softwares readers, is funny and I learn more :)

[michiel2047]

very handy. The video lessons on the site of my uni went down.and the book wasn't too clear on opamps but this makes it easy.

[ankitaprabhjot]

@drjctu u must be having a tough time solving these doubts asked by ppl out here, my sympathies.

anyway gd wrk

[paraven007]

fault!!!!!! the power supply terminals near the inverting input and non inverting input is always +ve and -ve respectively!!!!! its not about up and down but we should base on the type of input it is to know if the supply will be +ve or -ve!!!!!

[Souraneel]

So you're saying under ideal conditions we want the op amp to change a 0A current to infinity!

thats some wishful thinking

[synsoul47906]

This video helped me pass a class at Purdue University.

Thanks, Dr. J!

[butomakansabun]

I'm sorry to tell this, I fell asleep because of your voice

[unknownscientist09]

there is a mistake at minute 6:23

[getandyc]

Your 10 min video helped me understand something that would have taken me an hour to learn by reading the textbook. Thanks!

[FAIZANURRASOOL02]

WHY WE CALLED POSITIVE TERMINAL AS NON TERMINATING TERMINAL AND NEGATIVE AS TERMINATING TERMINAL INPUT

[theplayboy92]

Very Nice lecture. I've understood it well.

[vXxo0oxXv]

Confused here... if Vp=Vn and Vo = A (Vp-Vn) wouldn't Vo always be 0?

[sayyedhammad]

boss why Vp = Vn?

[drjctu]

@sayyedhammad An ideal op amp is modeled with infinite gain A where vo=A(vp-vn) where v0 is the opamp output.. Then, vo/A=0=vp-vn when A is very large. This in turn implies vp=vn. Hope this helps! Dr J

[ubershredder1989]

@sayyedhammad boss use ur brain boss

[AvidiaNirvana]

Great video! Thanks for sharing!

[99ludester]

Great Video I really appreciate the help!

Anybody have an idea where I can find similar videos to drjctu's but about RL, RC, and RLC transients and such.

[rolandwith16s]

Thank you for the helpful tutorial!

[midhunrahul1]

dude u say Vp=Vn,thn Vo=A(Vp-Vn),thn output of the amplifier must be zero ryt....xplain pls

[drjctu]

@midhunrahul1 An ideal op amp is modeled with infinite gain A. vo/A=0=vp-vn. This in turn implies vp=vn. Hope this helps! Dr J

[AlJoKo21]

very very good. Thank you! I wish there was a video in german language where the OpAmp is explained that well.

[tcsnronik]

@remindor:

if A is infinite, then its an open loop gain which means there is no inputs applied therefore there is no voltage difference in the op amp and wont detect any change in its inputs i.e Vin = v1-v2 =0, hence,

A (infinite) * Vin(0) = 0v

This is ideal case.

[shuwukong]

excuse me, the current in both inputs can't be zero right? otherwise there would be no use at all

[drjctu]

@shuwukong Ideally, when these input currents at the inverting and noninverting are zero, it makes the op amp analysis easier. Practically, these currents are very close to zero. Also, if these input currents are not identical an output voltage will resut from this imbalance. That's why a potentially is used in some op amp applications to zero out the output voltage resulting from this imbalance. Dr J

[blackstars56]

@drjctu so an output voltage will not occur if the input voltages are not identical?

[irfaanfr1]

nice vid

[SKEL45]

good video do you have schematics for projects that use op amp

[Remindor]

I'm confused, if A is infinite, then whatever voltage comes out will also be infinite regardless of the inputs and the ideal Op Amp would be completely useless.

[drjctu]

@Remindor Without feedback, the OP Amp would saturate to the supply voltage where vout=A(vp-vn) and can be used as a comparator (compares voltage between vp and vn) giving only one of two possible outputs). However, you can lower the gain with feedback. With A as infinite, we can approximate the input vp-vn as zero or vp=vn which makes analysis easier and is a very good approximation for real op amps. Hope this helps! Dr J

[leon80z]

great video doctor! thx, understand much better now

[Mohrdaunt]

Great video! I'm preparing for my Elctronics Technology exam and this video has been a great refresh of ideas!

Cheers from Spain! Good job! ^^

[blitz30952]

wow, awesome video :)

[ebotee]

Very helpful video for understanding Operation Amplifiers. Also nicely explains Vp and Vn relation. Thanks for a great video!

[daltonsbadboy]

SPC here from the US Army....I am enrolled in the 25 Romeo course/ Video Equipment Operator Maintanier Course @ Dinfos Ft Meade Marryland. I am currently enrolled in EFC/electronics fundamentals course...we are testing on FET's and OP Amps....i perused youtube for some instructrional videos and found yours to be very good. I subscribed and am considering looking into more training and counsel from you. Thank you for the good material you provide.

[cloudsynth08]

Honestly, this is better at breaking it down than the MIT OCW lecture on the same topic

[1257SAMEER]

thanx dude for spending time on dis video

[Sil3nC4]

What U did with this vid in 9:50, my professor couldn't do in 6,5 weeks. Thanks and keep it up ;-)

[antiguerra]

so true

[bennethos]

Thank you very much for your time and knowledge sharing !

[grawler88]

good job, keep up the good work ;)

[PalestineAboveAll]

can u help me to now hoe u make this video ..i mean the recordings which software u used ?

[trance183]

I love this guy. He is so helpful. :D

[lamprac]

god job very very well explain I like me your video thx greetins

[manojsm87]

@drjctu thnx...my concept has been cleared..

[judejutsu]

thanks

[tripleverse]

it took me nearly a year to understand this myself. and it only took me 10 minutes to understand this.

thank you so much!

[100roberthenry]

nice vid dude...have been messing with breadboarding....excellent info........

[drjctu]

No problem. Glad it helped in some way. you can do alot of things with Op Amps. Dr J

[solvalla2007]

Thanks for the efforts you put on all these videos. Tip: use Microsoft OneNote, much better than Windows Journal.

Good luck

[drjctu]

You're most welcome.  Glad the video was helpful in some way. I'm currently learning to use MS OneNote. Once I get comfortable using it efficiently I plan on using it. I like Microsoft Journal because it uses has thicker line for easier viewing for the use. I haven't explored OneNote in depth in this area.

Thanks for the tip though. Dr J

[ChrisBryanTisSkinny]

You are great you have helped me a lot this year, thank you.

[TwilightTinyTim]

Thanks a lot. You are very good at explaining things.

[dawance88]

You ROCK MAN! Thank You!!!!! Please keep posting.

[pagalmadman1]

m so grateful to you....... i realised this so late......... i can now get rid of my arrogant and pathetic lecturers........THIS IS KNOWLEDGE SHARING...... thanks a lot bro.........

[echall]

I am very impressed with your video, a very helpful and well presented, thanks so much...................ED

[boong88]

thnks... really helpful

[lazysleeper6]

Thank you.  You are an excellent tutor.

[t2vietnamese]

very helpful. thanks