SUMMARY 1. Invention of transistor. - Invented in Dec 1947 by William Shockley, John Bardeen, and Walter Brattain - Got a noble prize in 1956 2. Use of BJT. - Amplifier (of weak signals) - Switch (for operations) 3. Types of BJT (npn and pnp transistor). 4. Emitter, base and collector regions. - J1 = Emitter junction (Emitter with base) - J2 = Collector junction (base with collector) 5. Width comparison. - C > E > B - C is the biggest because it has to collect electrons and thus producing heat - The bigger the width, the better the heat dissipation 6. Doping comparison. - E > C > B 7. Cross-section view of transistor. 8. Transistor symbol. - NPN the arrow is facing E - PNP the arrow is facing C 9. Regions of operation. J1 J2 Operation FB RB Active -> Amplifier FB FB Saturation -> Logical ON/short circuit RB FB Cutoff -> Logical OFF/open circuit RB RB Inverted -> Rare used
@@yola587 Hey, you can search for any topic. It's been a while since I graduated. But there will be like tons of videos. I never sticked to any one channel. But i always preferred Indian guys as it was more in detail and also they used classical method of teaching. Thanks
@@dayasagarkudva2689 oh that's great sir feels good talking to someone after 4 year's haha..did you also do btech in electronics andtelecommunications?
Just one like it's not enough to express the admiration for this channel. Simply the amout of knowledge that this channel give us it's unbelieveble. Massive thanks
iam studying Electronics engineering . i was so confused to hear the importance of bjt and was so confused that i would be so difficult to understand but after watching this iam feeling blessed. thanku sir u explained beautifully
A transistor has 3 regions,2 junctions(hence 2 depletion layers) and made from 2 PN junction diodes In both PNP,NPN area and doping parameters remain the same(eg:area of c>e>b) Area of collector is more as it has to collect the carriers and heat is generated. Generally,mobility of n is more than mobility of hole hence,npn is preffered over pnp.
1) collector is most wide since it collects the charges which requires efficient heat dissipation 2) npn is more widely used since the mobility of electrons is greater than holes.
In cross section view of transistor, base is seems like having more surface area than emitter or it's just drawing mistake...... but after all best explanation and best teacher on you tube. Thanks sir.
You are a great teacher. I want to know whats your name and from where you are. Are you teaching any where or doing this part time because of your interest in teaching and helping students.
Sir, u told bipolar name is there bcz there are two charge carriers, but I think it is bcz the correct is due to sum of current due to hole and due to electrons
sir u said width collector>emitter>base but in the cross section diagram u have shown it as collector>base>emitter can you please explain? rest of the part i understood very very clearly
as you explained bipolar means having two charge carrier electrons and holes, similarly we have same charge carrier in p-n junction diode. Is p-n also a bipolar device
No, bjt is called bipolar because it has two junctions. WHile a n-p diode have just a single junction
8 лет назад+1
BADRIGARI GNANESHWAR nop diode is not a bipolar device because only electrons take part in its process wheras in case of bjt electrons and holes take part in its process.thats why bjt is called bipolar device even though hole is an imaginary concept
BADRIGARI GNANESHWAR yes pn junction diodes r bipolar devices as u already wrote the correct explanation of why so But there r some diodes like schottky diode
It depends on the VOLTAGE that you apply to the different terminals. In fact, it depends on the DIFFERENCE of VOLTAGE. If Vc, Vb and Ve are the voltages, and Vcb = Vc-Vb; Vbe = Vb-Ve, ( you can also have Vce = Vc-Ve) you can "see" when a PN junction is reversed biased or forward biased.
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SUMMARY
1. Invention of transistor.
- Invented in Dec 1947 by William Shockley, John Bardeen, and Walter Brattain
- Got a noble prize in 1956
2. Use of BJT.
- Amplifier (of weak signals)
- Switch (for operations)
3. Types of BJT (npn and pnp transistor).
4. Emitter, base and collector regions.
- J1 = Emitter junction (Emitter with base)
- J2 = Collector junction (base with collector)
5. Width comparison.
- C > E > B
- C is the biggest because it has to collect electrons and thus producing heat
- The bigger the width, the better the heat dissipation
6. Doping comparison.
- E > C > B
7. Cross-section view of transistor.
8. Transistor symbol.
- NPN the arrow is facing E
- PNP the arrow is facing C
9. Regions of operation.
J1 J2 Operation
FB RB Active -> Amplifier
FB FB Saturation -> Logical ON/short circuit
RB FB Cutoff -> Logical OFF/open circuit
RB RB Inverted -> Rare used
Thanka bro
8.b. in pnp the arrow is facing B not C lmao
Thank you 😊
Bhai last me corrections ki jarurat hak
thank you
I cleared my electronic devices and circuits-1 with good grades because of you...
Thanks a lot buddy..
please suggest some more channels like NESO ACADEMY for MATHS , PHYSICS AND ELECTRONICS
@@yola587 Hey, you can search for any topic. It's been a while since I graduated. But there will be like tons of videos. I never sticked to any one channel. But i always preferred Indian guys as it was more in detail and also they used classical method of teaching. Thanks
@@dayasagarkudva2689 wow bro would like to know what you are doing now
@@rushabhjain8598 I am currently working as a system engineer in an MNC bro😊. Thanks for reaching out
@@dayasagarkudva2689 oh that's great sir feels good talking to someone after 4 year's haha..did you also do btech in electronics andtelecommunications?
Just one like it's not enough to express the admiration for this channel. Simply the amout of knowledge that this channel give us it's unbelieveble. Massive thanks
iam studying Electronics engineering . i was so confused to hear the importance of bjt and was so confused that i would be so difficult to understand but after watching this iam feeling blessed. thanku sir u explained beautifully
hobode
Hieee....man...
If you have any doubt, you may ask in comments section and I will not give answer 😂😂😂😂
i swear man, this is the only comment on youtube, that made me actually really laugh.
Bhai hasna tha kya?
Sire, hats off to you....the way you introduce the topics...makes the...complicated topics lika a cake walk..... thank you Sir....
Simply Amazing!!!!
Best online lecture I have ever seen.
bro , it s unbeleavble who how he explains all this knowleadge in such a short time , a real electronic Master
Kaash 1 Billion likes ka option bi hota neso academy k liyai woh bi kam hii hai
Aap.uss sai zayada deserve krtai hooo
A transistor has 3 regions,2 junctions(hence 2 depletion layers) and made from 2 PN junction diodes
In both PNP,NPN area and doping parameters remain the same(eg:area of c>e>b)
Area of collector is more as it has to collect the carriers and heat is generated.
Generally,mobility of n is more than mobility of hole hence,npn is preffered over pnp.
This is fantastic review for me before midterm. Great explanation! Thank you, keep them coming.
Through the lectures i cleared my *switching theory* doubts also.................thanks a lot sir
You explain with very simplicity. You makes things easier, THAN YOU.
1) collector is most wide since it collects the charges which requires efficient heat dissipation
2) npn is more widely used since the mobility of electrons is greater than holes.
Very detailed and concise explanation. Thank you
u explained it in a very good way TRANSISTOR = TRANSFER & RESISTOR
I can't thank-you in words .....u are god... 🙏🙏🙏🙏. Thank-you sir.....🥺🥺🥺
In cross section view of transistor, base is seems like having more surface area than emitter or it's just drawing mistake...... but after all best explanation and best teacher on you tube. Thanks sir.
So useful lecture
Thanks a lot 😇😇😇
You are great!
U teaches in a well disiplened manner.
Plz apload diploma subjects briefly it will be very helpful for us to listen because ur way of teaching is really good and cleared tq
so brief step by step easy to understand lecture
Finally. Bjt. So confusing sometimes.
Amazing explanation to understand
best lecturer ever
sir please provide us a notes ..
it's humble request from all the students..
am really your big fan...sir..
thanks a lot
Great sir...!!! Thank alot...your way of learning is simply amazing
Very good teacher
You are a great teacher. I want to know whats your name and from where you are. Are you teaching any where or doing this part time because of your interest in teaching and helping students.
Could you please have some lectures on Operational amplifier and sinusoidal oscillators?
It would be a great help🙂
Awesome clear explanation
Thank you sir ❤️
Good explained
WoW! every small and important details explained in an easy manner thank u sooo much sir
Thanks Sir
Saved my life😊
Thanks
very NYC ...all the basic points are covered in this ... tnxx 👌😊
Much better than my teachers 👌
amazing explanation, many thanks
sir plz upload the lectures for opamp section as well in this analog circuits series
are the have uploaded?
this is a great channel go ahead sir
it is very useful thanks a lot
Very good Sir u covered all important points
Thanks sir !!! for you give as this brief lecture.
helpful lecture sir
clear explanation.....excellent work
Sir i love ur way of explaining and teaching a lot. Best tutorials provided ever :*
Thank you for the lesson, sir.
You're awesome.
Nice lecturing bro...keep on
sir we want lecture on power amplifiers
Thanks sir...please upload bjt related problems
crystal clear
thanks good explanation
Sir if u don't mind will u explain in detail about four regions of transistors..pleasee
You are incredible... thank you so much for this.
Nice sir!
Q:-(1)what are the similarities between the Resistors and the Transistors.....?
its very helpfull tnks sir
Nice video sir....but sir the all video which have you uploaded for BJT are sufficient for b tech first year
simply awesome.....................
Thanks a lot sir
Sir, u told bipolar name is there bcz there are two charge carriers, but I think it is bcz the correct is due to sum of current due to hole and due to electrons
Thanku so much sir....
explain about last portion of this lecturer regions of the transistor
Shaandar jabardast jindabaad
Thank you
Plz add oapamp portion as well
it was.... amazing....
Penaldo
sir u said width collector>emitter>base but in the cross section diagram u have shown it as collector>base>emitter can you please explain? rest of the part i understood very very clearly
you told that doping level order is E>C>B but it is E>B>C ..according to my knowledge .. pls confirm it asap
That would be correct if it was an npn BJT. But he's apparently @ 5:15 making an explanation to the pnp BJT.
Sir Weee need more Lectures
sir by doping point of view . emitter is highly doped then base then collector
as you explained bipolar means having two charge carrier electrons and holes, similarly we have same charge carrier in p-n junction diode. Is p-n also a bipolar device
No, bjt is called bipolar because it has two junctions. WHile a n-p diode have just a single junction
BADRIGARI GNANESHWAR nop diode is not a bipolar device because only electrons take part in its process wheras in case of bjt electrons and holes take part in its process.thats why bjt is called bipolar device even though hole is an imaginary concept
BADRIGARI GNANESHWAR yes pn junction diodes r bipolar devices as u already wrote the correct explanation of why so
But there r some diodes like schottky diode
No, in BJT corrent is due to both holes and electrons, i.e sum of those currents, but in diode current is either due to electron or holes
Sir you said that base region is small but in cross sectional view it's larger than emitterr...
Bro look at the width of base between emitter and collector that is actual base region
plz provide materal related to ujt also.
great sir
How does the case 1 operates as an amplifier .Explain it clearly.
Understood sir.
Thanks sir.....
I like your explanation and concept.....one thing is that there must be some animation for better undwratanding....by the way u r good. Thank You
regions of operation shown are same for both pnp and npn or not?
please upload the op-amp concepts
Amazing...keep it up..
plz upload the video lecture for power amplifier
when j1 is RB and j2 is FB, i,e. in the rarely used mode , what happens to the doping concentration?
May be when a strong signal is introduced near emitter base junction, we get weak signal at the collector base junction....Correct me if I'm wrong.
what is meant by beta heat dissipation which you said at 5:32
thanks a lot
Sir make video for ic fabrication
What happens to transistor in on and off mode? How does it act?
Please explain me the working of the regions once more
Why they are in active,saturation,inverted etc mode in case of different condition of junction?
chupp
It depends on the VOLTAGE that you apply to the different terminals. In fact, it depends on the DIFFERENCE of VOLTAGE. If Vc, Vb and Ve are the voltages, and Vcb = Vc-Vb; Vbe = Vb-Ve, ( you can also have Vce = Vc-Ve) you can "see" when a PN junction is reversed biased or forward biased.
please explain region of operation ? what do you mean by that ?
The secret of topper revealed
How we get to know it is forward biased or reverse biased
Sir, can you say one practical example using the 4.th mode means when J1 is rb and J2 is fb???
what do you actually mean transfer resistors? little bit confusion about this statement. waiting for your response. thanks.
Sir last case is used for attenuator .Our faculty member told uz
Is it correct or not
Please sir upload opamp lectures....plz
Sir you said cutoff region is off,saturation region is on
can u explain it why??
Sir
in
the last case of the table
4th case is rarely used but why it is used i means it's purpose???
annna future lo videos chesetapudu mic vadandi sound thakkuva vundi.....