Long awaited explanation that is really sticking down to earth rather than bumping here and there. Thank you Mr Zahi for making my life in understanding simple op amp subject simple ... rather than the simple op amp subject made complex!
After I read the comments, I realized he used improper word. When I heard, I couldn't think he was really using that kinds of word. I gave him a thumb up for his explanation.
@@pspmaster2071 because he explains his stuff very well, I have watched almost every video on circuit 1 playlist, and he is 100% better than my prof at University hahahha
i have a question: i am using opamp in open loop configaration vcc=12v, vee=0v, v- =2v, v+=(0 to 5v) ac square wave output is=(3 to 12volts)ac sqr???? i am expecting output=(0 to 12 volts) ac sqr. what happened here please explain.i want 0 to 12 instead of 3 to 12
Form the diagram containing a voltage dependent current source,i can tell that the op amp is an inverting amplifier but your answer is positive.clarification please.
The circuit connected to the op-amp is the small signal model of a common emitter amplifier, which inverts the input. The op-amp again inverts this output, so the final output has the same sign.
Open circuit voltage is a potential difference thing. You only have one end of it the other end is no where there, if there would have been ground attached to it, Iz wouldn’t have to be zero necessarily
The non inverting input has the more positive voltage 10v compared to the inverting input 9v. Gain in calculated using super position of both inputs. Gain will be noon inverted
the potentials are not zero. it starts from Vout potential and ends in the ground, so clearly there is a potential difference for the current to flow. As of why he writes 0 and 0, it probably would be 0 and some negative small number @AAMIR
Why the current through the 1k resistor is 0? If you convert the current source into the voltage source then the current has to go through the 1k resistor, there is no any other way left.
Current will always choose the path of least resistance. Why go to the 1k resistor when you can go to a path with no resistance. It is also connected to ground
this was very helpful, except that i think answering the phone during the video & having another guy guess the answers was time consuming. greatly helpful though
You're a super awesome instructor. I wish I was in you class but you posted on youtube anyway. Thank you sir!
thank you sir...
lol at beginning...
"you can combine the 850 and the 850 and make that what..? .... uhhh fuckin 1700?"
haha
I love this guy's videos THE BEST
He's single-handedly teaching me Circuit I by himself, through an online video platform, from the US. That's called progress.
that combined with the that's what she said joke, " Its not going to shrink it that much"
my mind blown on the last example.
Long awaited explanation that is really sticking down to earth rather than bumping here and there. Thank you Mr Zahi for making my life in understanding simple op amp subject simple ... rather than the simple op amp subject made complex!
Last question is very good you hybrid transistor equivalent circuit with opamp that was amazing you are a good teacher thank you
"Fuckin 1700" haha. Lol, I mistook the "10k" resistors for "IDK" as in "I don't know."
Extremely helpful video! thank you, sir!
After I read the comments, I realized he used improper word. When I heard, I couldn't think he was really using that kinds of word. I gave him a thumb up for his explanation.
Much appreciated Sir😊
Basic
6:00 From where you got 27V when rail to rail is +-9V so 18V difference?
That's not the power supply of the opamp! Just a voltage source at the Input.
best circuits teacher on youtube
I agree
Can a source transformation be applied on the noninverting side to get 10V?
6 years from undergrad I fully understood opamps through this video, didnt know what i did to get a A- then
This guy is very good!
@@hokuspokus5034 why do you say that?
@@pspmaster2071 because he explains his stuff very well, I have watched almost every video on circuit 1 playlist, and he is 100% better than my prof at University hahahha
@@clockw1se226 I think I replied to someone else whos comment disappeared.
@@pspmaster2071 is it a ghost?
@@clockw1se226 You tell me
incredible. the best tutorial before my quiz. and can I ask you where do you teach?
original examples very well explained!
How can Vout be greater than the saturation voltage?
good explanation..thanks
fuckin' 1700 loled
LMAO I JUST CAUGHT THAT
I replayed the video to verify I heard it lol!!!😂😂😂
@@pspmaster2071 Where does he say it?
where?
@@MoSweiti666 0:26
ı liked the first question it s very helpful and enough explanation
I have not seen any slow solving like this, if you increase your speed by 100 times, then this examples can be perfect. thanks for the video !
i have a question:
i am using opamp in open loop configaration
vcc=12v, vee=0v, v- =2v, v+=(0 to 5v) ac square wave
output is=(3 to 12volts)ac sqr????
i am expecting output=(0 to 12 volts) ac sqr.
what happened here please explain.i want 0 to 12 instead of 3 to 12
How do you suggest the Io current (current at Vout going inside the opamp) goes inside the opamp while Vout itself comes out of the Opamp.
Choosing the direction of current is arbitrary. Well, having negative answer suggests that the assumption of direction of current is wrong.
where are we getting 10V when were are doing (9-10/100) @ 4:44
v-=v+. Since v- is 10V then v+ is also 10V.
-10 mv
could you please tell me book name which you showing this video?
Good
why is the current through the 1k resistor zero?
Path of least resistance.
Because its an open circuit
Voltage difference between 1k resistor is 0. Current is equal to (Voltage difference) /R.therefore 0/R=0
Form the diagram containing a voltage dependent current source,i can tell that the op amp is an inverting amplifier but your answer is positive.clarification please.
The circuit connected to the op-amp is the small signal model of a common emitter amplifier, which inverts the input. The op-amp again inverts this output, so the final output has the same sign.
why we know Iz=0 Can u explain me? thank you!
THANK YOU!
Why is Iz just equal to zero?
Open circuit voltage is a potential difference thing. You only have one end of it the other end is no where there, if there would have been ground attached to it, Iz wouldn’t have to be zero necessarily
why v1=v out + iz*1m but not equal to v out -iz*1m
Confused as to how you got a positive value for Vout if thats an inverting op amp. If Vin is (+), Vout should be (-)
The non inverting input has the more positive voltage 10v compared to the inverting input 9v. Gain in calculated using super position of both inputs. Gain will be noon inverted
awesom class
I don't understand why the current value is negative?? anyone can help pls.
ya 2nd question is clearly wrong ! how could they find non-zero current between two zero potential ?
the potentials are not zero. it starts from Vout potential and ends in the ground, so clearly there is a potential difference for the current to flow. As of why he writes 0 and 0, it probably would be 0 and some negative small number @AAMIR
Thank you so much Sir
Why the current through the 1k resistor is 0? If you convert the current source into the voltage source then the current has to go through the 1k resistor, there is no any other way left.
Current will always choose the path of least resistance. Why go to the 1k resistor when you can go to a path with no resistance. It is also connected to ground
Plz suggest me a book for critical problem on op amp
Fundamentals of Electric Circuits, 6th edition
this was very helpful, except that i think answering the phone during the video & having another guy guess the answers was time consuming. greatly helpful though
I love this guy
so Good...
although class is not boring
bless you man
thank you!
850 + 850 … what is that f*cking 1700 😂
Why Iz = a 0????
Fateh Chakib because it's an open loop and there's no path for Iz to flow. Thus Iz=0.
awsome :)
why is it not V+ = - V-?
Because Voltages have to be the same at the input of opamp
FUKING 1700 LOL
why when Ix=Iy he multiply it with a 1700?
It's one of the steps he took to solve for V_out. He needed to multiply by 1,700 to clear the denominators.
2nd question is clearly wrong...
+118 ma
do you really had to answer that phone call ? -_-
you know you are on the internet and can control time -- just forward.
I DONT UNDERSTAND WHY IZ IS ZERO (27-0/1M) IS NOT ZERO !
It's zero because it's an open circuit , no current flow means zero current
its an open circuit bro..
it's open bruh
arrogant and unhelpful manner, switched off
Try again. Better answer.
@@byllgrim6045 Perfection.
I disagree.