Mr. Neso this video is 4 years ago, but I just want to say here that be certain that you are better at explaining things than 95% of all college professors in all countries. And the funny thing is, you are brilliant at every topic!
You are a genius sir !!!! I saw your videos just 1 hour before the exam and I cracked it like anything Thank you from bottom of my heart and salute to your selfless work!!
Now whatever doubts I have in academics , I think neso academy is one stop solution. you explain in the best way that all the doubts and how questions are always cleared. good job sir !
Sir, I am student of Electrical Engineering in university and our lectures are English. I can't understand anything our professor. You are amazing cause you make it clear. Thank you so much 🙏
1.Why it is called "fixed bias/base bias"? 2.How the collector base junction is reverse biased by Vcc? 3.Why base to emitter potential is equal to the barrier voltage?why not more than that?
1. Base current IB is fixed. Therefore, this type is called the fixed bias type of circuit. 2. CB junction will be reverse biased if the voltage drop at the collector terminal with respect to ground will be more than the voltage drop at the base terminals with respect to the ground. and this voltage drop depends on the values of resistors connected to the collector and the base terminals. Hence, we should choose the value of the resistors accordingly. 3. It is because the base to emitter junction is forward biased in active mode and acts like a PN diode in forward bias.
CB junction will be reverse biased if the voltage drop at the collector terminal with respect to ground will be more than the voltage drop at the base terminals with respect to the ground. and this voltage drop depends on the valuse of resistors connected to the collector and the base terminals. Hence, we should choose the value of the resistors accordingly.
In the example problem shown in the video, while calculating Rc why cant we use the ohm's law since Vc and Ic are known and only Rc should be found. Is there any wrong if use this or whether its a rule to solve by KVL
An AC signal might contain some DC components, which could interfere with the biasing voltage of the transistor. To prevent interference, the capacitor is used to block those DC components.
krishna godugunuru In CE configuration, Ib is the i/p current and Vce is the o/p voltage..so obviously they are related ..early effect is there na..clear ur concepts.☺
Amir Ahmad Couplings capacitors are especially used when AC signal is given. AC signals are not always pure it contains small amount of DC signals so when AC is passed through capacitors ,DC components are blocked , thus input applied is pure and output is less distorted
I am not able to figure out how collector-base junction is reversed biased? The terminal of collector is getting voltage +Vcc-IcRc and base is getting Vcc-IbRb. Then how is it happening? Sir please help.
Mr. Neso this video is 4 years ago, but I just want to say here that be certain that you are better at explaining things than 95% of all college professors in all countries. And the funny thing is, you are brilliant at every topic!
exactally
Now its 6 year bro!!! And still fruitful 💯💯💯
@MadeFitAnshu, right brother.
100%
1000%
Neso academy well done
You just explained everything clearly as my teacher explained me . From India 🇮🇳🇮🇳🇮🇳
Thank you sir for liking my comment
He is from India also 😂
You are a genius sir !!!!
I saw your videos just 1 hour before the exam and I cracked it like anything
Thank you from bottom of my heart and salute to your selfless work!!
This is the best analog electronics course on TH-cam, hats off for your tremendous effort sir
Now whatever doubts I have in academics , I think neso academy is one stop solution. you explain in the best way that all the doubts and how questions are always cleared. good job sir !
Sir You Should be Awarded with Nobel Prize😆
TRUE THAT!
Really
yeah i heard he is soon going to be
😂
What about Oscar? 😂
Sir you explain superbly and precisely......words alone are not enough....you simply are the BEST!
Sir, I am student of Electrical Engineering in university and our lectures are English. I can't understand anything our professor. You are amazing cause you make it clear. Thank you so much 🙏
You are great sir this thing saved me from confusion and many arrears 😅. God bless you with happyness.
Neso Academy should also start teaching english so that next time you comment on them, god bless them with happiness and not happyness...
neso academy should also give tutorial on khatna and halala...
@@prashantsinghtomar5727no on niyog and sati pratha gobarbhakt har jagah gobar kr dete dangar
Gufaputra
You got me out of a severe confusion. Thank you!
Thank you!! I need this for my finals tommorrow.
wonderful explanation sir.Explained concepts in a simple and easily understandable manner.
You are awesome, no-one can match you sir.
Sir last point u explained why we dont take c is superb because even my professor did not ecplained it. Love from NIT jalandhar
Superb sir.. I really liked u r explanation..👍
No one can match your clarity
👌👏
FANTASTIC EXPLANATION. REALLY IMPRESSED. KEEP UP THE FLAG FLYING HIGH ALWAYS
i love u man , u took my understanding too way higher level
THANK YOU SO MUCH FOR YOUR EXPLANATION SIR
All the colleges should have a Neso Academy classes in campus😂❤
Neso Academy itself should have separate college!
sir plz upload lecture about semiconductor memories in digital electronics..u r doing a great job sir...plz keep uploading new videos..thank u so much
nicely explained in short time😊😊
excellent job sir.....thank you very much ...expecting more
1.Why it is called "fixed bias/base bias"?
2.How the collector base junction is reverse biased by Vcc?
3.Why base to emitter potential is equal to the barrier voltage?why not more than that?
1. Base current IB is fixed. Therefore, this type is called the fixed bias type of circuit.
2. CB junction will be reverse biased if the voltage drop at the collector terminal with respect to ground will be more than the voltage drop at the base terminals with respect to the ground. and this voltage drop depends on the values of resistors connected to the collector and the base terminals. Hence, we should choose the value of the resistors accordingly.
3. It is because the base to emitter junction is forward biased in active mode and acts like a PN diode in forward bias.
Thank you to both @dhiraj and @mohtasir
Sir, in dc analysis why don't we use transient analysis at capacitor.
Thank you so much. You relieved my all stress before the exams.
Thanku sir .!..watching most of your videos!Really helpful vids ...!Thanks a ton!😀
You're just too good, I love it, thanks God bless
Sir your videos really help me
Where are you from sir. Your teaching skills is very good ❤❤❤❤❤❤❤.
Neso academy, you should upload these videos by increasing the volume level
You're a life saver
thank u sir it's useful and easy to understand
Proper explanation we have
You are legend❤🔥🙏🙏
Sir please explain, what is the need of capacitor coupling in the circuit for AC analysis???
To filter out the DC component in a Signal ....only AC will pass through Capacitors
Thank you sir ❤️
sir can you please tell whether this is used in circuit designing or effect of beta change in every part of ckt?
what an explanation! thank you sir
At 08:43 we got 332.5 kohm..but it should be not kohm it shud be 332.5 ohm I think i may be wrong please help some1
At 4:45 how did you consider it to be voltage drop that's the only doubt
Remaining is excellent
Please clarify it soon
I'm having exams
Please
Hello Sir, assalamualaikum
I am from Bangladesh , I love you a lot
Very good lecture sir
Please make a playlist for Sensor and Transducers and Industrial Instrumentation
great video 🥰🥰
How is CB junction reverse biased? The C terminal is connected to positive end but B terminal is also connected to positive terminal.
CB junction will be reverse biased if the voltage drop at the collector terminal with respect to ground will be more than the voltage drop at the base terminals with respect to the ground. and this voltage drop depends on the valuse of resistors connected to the collector and the base terminals. Hence, we should choose the value of the resistors accordingly.
Sir Can you tell me How Can i get VB (Base Voltage) VC(Collector) VE(Emitter) ? ?
why is Vbe = 0.7V ? 3:50
It's the barrier potential of silicon
Is AC signal does combine with DC through base and collector?
God bless you ❤
Sir why we are using coupling capacitors?
A great thanks to u sir🙂
please one question
derive an expression for collector current and collector to emitter voltage for fixed biased PNP transistor?
Sir, in the example that you take of finding the Rc...In which you take Vce equals to Vc.....so can we find the Vce first and then Rc??
sir plz explain current mirror using bulk driven
Sir pls add some problem on topics which u r telling about it so we can easily understand by solvinh it.....
Most amazing👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍
In the example problem shown in the video, while calculating Rc why cant we use the ohm's law since Vc and Ic are known and only Rc should be found. Is there any wrong if use this or whether its a rule to solve by KVL
Thank you so much sir.....
I don't understand the concept of capacitor in dc biasing circuit can you pls explain this?????
An AC signal might contain some DC components, which could interfere with the biasing voltage of the transistor. To prevent interference, the capacitor is used to block those DC components.
sir u did great job but i could not understand how u relate this Ib current and Vce voltage
please reply for this]
That is because of early effect phenomenon
krishna godugunuru In CE configuration, Ib is the i/p current and Vce is the o/p voltage..so obviously they are related ..early effect is there na..clear ur concepts.☺
Can we also use beta for another configuration of transistor other than common emitter?
This is strange but true after spending lot of money to our college we learn from here.
good job, keep it up
but sir, Vc=Ic*Rc=3.2m*2.5k=8v, way don't become 6v??
Sir please tell about the variation of q point and stability factor s and it's advantages and drawbacks
how to know whether the transistor used is germanium or silicon ???
Why do we use resistor Rc connected to Collector?
What is the reason behind using the coupling capacitors in the ckt?
Amir Ahmad
Couplings capacitors are especially used when AC signal is given.
AC signals are not always pure it contains small amount of DC signals so when AC is passed through capacitors ,DC components are blocked , thus input applied is pure and output is less distorted
sir in derivation u gave Vce=Vcc-IcRc but in numreical problem u directly did Vc-Ve sir which is correct ?
Both are correct in derivation Kvl is used ...while in numerical sir have worked on potential at point ..you can try kvl and will get same ans
no the correct answer should be 8 volts
COMMENDED. GREAT PROF.
Please do videos on optocoupler,led,photo sensors...sir...
If the capacitors act as open circuits then what is the use of them in the circuit ? i/p signal will not be transmitted through the open circuit.
Sir is ic equal to beta ib valid for each and every ib or ic gets saturated after keeping vcc constant and increasing in by increasing vbb.
thank you .. which programs u r using to draw?
For the (c part) why do we apply kvl till 6v only??why not till Vce??
I am not able to figure out how collector-base junction is reversed biased? The terminal of collector is getting voltage +Vcc-IcRc and base is getting Vcc-IbRb. Then how is it happening? Sir please help.
Because its npn transistor
I think.so
Is biasing is done at operating point ??
If not then is there any relation between operating points and biasing??
sir? is the value of the current in the emitter is equal to the current of the collector or is it zero?
Why was Vbe 0.7 or 0.3 V
Thank you so much sir!!!!!!
Sir how is it named VCC when it is connected to base also?
sir why we use capicitors across its terminals???
if i use Vce=Vcc-IcRc for the last answer why it's not match with the answer and why we don't use this rule for the last example Vce
Best man❤️
sir how you are deciding that Ic and Vce are the output values,,?atleast tell these small small things na..
What is the current that flows in circuit where the output is taken ?
sir what is the need of capacitance'
Kindly explain how we get 3.2 mA as IC for part (a) post multiplication of values of IB and Beta. Regards
Can someone tell me why is there two resistors connected what happens if they are not there pls reply
how do you find Vbe value......?
How the collector base junction is reverse biased?
Sir, please upload videos on multivibrators
What is the use of coupling capacitor ??
So that dc voltage of one network can't affect other neighboring circuit just as in Cascade amplifier because capacitor blocks dc
sir,why we write fixed potential as vcc
If it becomes open circuit means what is the use of giving input signal sir ...these signals can't flow through the circuit no sir
Bro, i love you bro
thank you very much sir
Why are we using fixed bias circuits..i mean what is the diff between Emitter bias ckt and fixed bis ckt
Super sir
Sir can you please tell me the role of capacitors in fixed bias circuit
It has no role its application is in ac analysis