Electronics 101: Op-Amps
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- čas přidán 19. 07. 2024
- In today's Electronics 101 lecture, we go over the basics to the analog operations of operational amplifiers.
You can find the notes to this lecture, along with the other Electronics 101 notes at:
www.dropbox.com/sh/lqmswr7nkt...
Have a question you'd like answered, now you can email me directly at:
humanharddrive@gmail.com
Or post your suggestion for a future video below. - Věda a technologie
Brilliant. I've watched several tutorials on op amps but I didn't really get it until I watched yours. Very well explained, thanks.
This intro was extremely helpful and passed beyond my expectation
good job keep it up
I can't believe this 18 min video actually explained me opamp...I was searching on internet for months .....thnx thnx thnx thnx thnx thnx
Excellent intro to OpAmps. They make sense now. Thanks.
I don't wish anything other than people learn properly, so please take no offense. Anyone wanting an extremely brilliant video to show op amp operation should see EEVBlog and Dave Jones op amp tutorial which is outstanding. This is just gonna confuse the arse of any beginner, with some mistakes too.
thank you humanDrive for those video that you have been posting, and I would like see one how to step up current.
Nice tutorial. Always enjoy your videos. You are very knowledgeable.
I like how you put that overshoot/undershoot graph in. almost nobody ever does that. not even in proper texts. I have personally found that to be the most important thing when understanding op amps and how feedback works.
Thank you for your awesome tutorials. I have seen this simbol many times and wanted to request it but didn't no what they were called. I would love to learn more about transistor amplifiers and valve amplifiers and how pre amps work
Towards the end. The negative feedback goes to the source input and the voltage divider should be Rfeedback/Rsource. This is the way i understand op amps but im a beginner. Rsource being in series with Vin and non-inverting input
Thank you.
I've had a few laughs do with how you draw your lines. You'r funny. Like it.
Nice video. Very informative. Thanks!!
finally... ill watch this as soon as i sober up.
Can you check this : It seems that in your right schematic of the op amp there is an inversion between Vin and Vout.
So, you would obtain Vin=Vout(R2/(R1+R2)) and by transformation of the mathematic equation you would obtain Vout/Vin = 1 + R1/R2 witch is the gain that you find.
Hi humanharddrive, I want to design a circuit using an op amp tl072 to reverse the direction of a dc motor. The motor is supposed to do reversed such that the current is limited to a particular value during transient. That's the applied voltage is reduced in steps. The current is proportional to difference between the back emf and the applied voltage.
Hi humandrive
Thanks for the videos,They are brilliant. I would like to see a video on schematic diagrams on how to follow a circuit when you are fault finding as there are so many paths you don't now which way to go.
thanks for the video, keep going!
Great job!
When you say "everything stays the same" in referring to the "aesthetically pleasing" drawing of the integrated circuit with the negative (inverting) on top and the positive (non-inverting) on bottom, do you mean that as a rule of thumb despite the negative symbol on top it is in fact positive?
Ex. Positive output is ALWAYS on top?
Or just that it doesn't matter much where the positive/negative output is but instead follow the symbols rather than a rule i.e. positive on top and negative on bottom? Sorry if this is a dumb question I am new at this. Thanks
very very helpful, thanks a lot.
Very gpod. Can you make video about conditioning an ultrasonic sensor signal with op amps? I wonder how many stages I need to add. Thanks!
brilliant!
what if i have , V(out)= V1+V2 . tow input insted of one input!! can it be solved using the same gain function (1+R2/R1+R2) ?!
I thought about trying to make a low battery alarm for my solar PV system with a comparator but never got around to trying it. I could use a variable resistor to adjust a reference voltage on a v divider to output a high when one side drops below the other.
u r awesome!! pls do biased amps too
µ is the symbol for micro (:
i could not follow your reasoning behind the first graph. it rises to v+, but why does it go back down ?
because output increases beyond v+, and the output is connected to Inverting input(v-), thus v->v+ and output starts to decrease and reach v-, but suddenly in the journey, vout becomes less than v+ and thus it rises to v+.... and thus this process continues and the output looks like a straight line when it is in this process of switching back and forth
very good presentation. I just wanted to know your background, like if you have a degree, and if so what point are you in your education. thanks mike
then, he is smart kid!!!
ahyaok100 I'm actually working on a liberal arts dissertation.
14:58 ! TADAAA
i think this is confusing for me bcuz at 9:00 you use v-out = v-h or v-l, but then your graph is using V+ instead of the h or l. And it's not really clear why there's so many darn v's. what's the difference btwn the +/- vs the h/l's?
danh le the h/l refers to the high/low input on the top and bottom of the op amp (being around 5-15 volts on top and -15- -5 volts on bottom or 0 volts on bottom)the +/- refers to the non-inverting and inverting supplies. he uses v+ in the grap to show that once V rises above that line, it becomes V-h and then it begins to lower underneath the line turning to V-l
5:27, nicrocontroller [NC] XD
you mean: Vout = Vin
No offense meant mate. All i am saying is, to understand something that is basic you have to be a beginner and myself being one i can say he has explained it very simple with examples like buffer. Dave on the other hand speaks basics but he goes a bit more in-depth and less examples.
Its a teachers ability to teach a subject in the simplest form that shows how brilliantly the teacher understands and its ones talent to explain it in the simplest form. Like a proverb says " if you simply can't explain it then you've not understood it very well"
aah I didn't see it was mu, jokes on me
You watch Mythbusters? +1 :)