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
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
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
@@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?
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.
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.
00:06 BJT is a three terminal doped semiconductor device used for amplification and switching. 01:50 BJT is a three terminal device used for amplifying weak signals and for switching operations. 03:34 Bipolar junction transistors have three regions: emitter, base, and collector. 05:20 Transistor structure and symbol 06:55 Differentiating between NPN and PNP transistors based on current direction. 08:18 A bipolar junction transistor is a combination of two diodes connected back to back. 10:02 BJT transfers a signal from low to high resistance. 11:35 Transistor operates in different modes based on the biasing of junctions.
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.
However, a independent theory of Superconductivity was developed by Landau and Ginzburg in Kharkiv, Ukrain(then USSR) but they did not get Nobel Prize.
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.
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
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
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.
Sir. I have one doubt u r saying that transistor transfers low to high resistance when weak signal at input is given and an amplified version was taken at out put. But amplification name itself suggest that current is amplified then how come d higher resistance comes as earlier ur told. Plz tell me sir
in the reverse bias condition of collector and base junction how a current can flow, because on increasing current, depletion layer increases as a result current due to majority charge carriers decreases and then their exist a current only due to minority charge carrier so how the current passes from base to collector... If it flows then can we say that at every single time when transistor is on it crosses the breakdown voltage.
if the transistor has two things for current flow : holes and electrons and for that reason it is called bipolar then similarly , diode also has current flow due to both of the above things and so shouldn't be the diode be also called bipolar diode ?
![Noob To Max With DRAGON REWORK In Blox Fruits [FULL MOVIE]](http://i.ytimg.com/vi/LnBMOinoOvA/mqdefault.jpg)
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
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
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...
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?
Simply Amazing!!!!
Best online lecture I have ever seen.
Kaash 1 Billion likes ka option bi hota neso academy k liyai woh bi kam hii hai
Aap.uss sai zayada deserve krtai hooo
Sire, hats off to you....the way you introduce the topics...makes the...complicated topics lika a cake walk..... thank you Sir....
This is fantastic review for me before midterm. Great explanation! Thank you, keep them coming.
bro , it s unbeleavble who how he explains all this knowleadge in such a short time , a real electronic Master
You explain with very simplicity. You makes things easier, THAN YOU.
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.
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?
@@krishneshtamrakar4693he won't give u an answer for this question
😂😂
Bruh 💩
Through the lectures i cleared my *switching theory* doubts also.................thanks a lot sir
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
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.
00:06 BJT is a three terminal doped semiconductor device used for amplification and switching.
01:50 BJT is a three terminal device used for amplifying weak signals and for switching operations.
03:34 Bipolar junction transistors have three regions: emitter, base, and collector.
05:20 Transistor structure and symbol
06:55 Differentiating between NPN and PNP transistors based on current direction.
08:18 A bipolar junction transistor is a combination of two diodes connected back to back.
10:02 BJT transfers a signal from low to high resistance.
11:35 Transistor operates in different modes based on the biasing of junctions.
Very detailed and concise explanation. Thank you
u explained it in a very good way TRANSISTOR = TRANSFER & RESISTOR
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.
You are great!
U teaches in a well disiplened manner.
John Bardeen is only person who got two Nobel Prizes in Physics. One for Transitor and another for BCS theory.
However, a independent theory of Superconductivity was developed by Landau and Ginzburg in Kharkiv, Ukrain(then USSR) but they did not get Nobel Prize.
I can't thank-you in words .....u are god... 🙏🙏🙏🙏. Thank-you sir.....🥺🥺🥺
So useful lecture
Thanks a lot 😇😇😇
Finally. Bjt. So confusing sometimes.
best lecturer ever
so brief step by step easy to understand lecture
WoW! every small and important details explained in an easy manner thank u sooo much 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.
Great sir...!!! Thank alot...your way of learning is simply amazing
Could you please have some lectures on Operational amplifier and sinusoidal oscillators?
It would be a great help🙂
Amazing explanation to understand
Saved my life😊
Thanks
Much better than my teachers 👌
sir please provide us a notes ..
it's humble request from all the students..
am really your big fan...sir..
thanks a lot
Thank you sir ❤️
Awesome clear explanation
Sir i love ur way of explaining and teaching a lot. Best tutorials provided ever :*
Thank you for the lesson, sir.
You're awesome.
this is a great channel go ahead sir
amazing explanation, many thanks
very NYC ...all the basic points are covered in this ... tnxx 👌😊
You are incredible... thank you so much for this.
Good explained
clear explanation.....excellent work
Very good teacher
sir plz upload the lectures for opamp section as well in this analog circuits series
are the have uploaded?
Very good Sir u covered all important points
it is very useful thanks a lot
sir we want lecture on power amplifiers
Thanks sir !!! for you give as this brief lecture.
Thanks Sir
Nice lecturing bro...keep on
Nice sir!
Q:-(1)what are the similarities between the Resistors and the Transistors.....?
crystal clear
helpful lecture sir
thanks good explanation
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
simply awesome.....................
Sir if u don't mind will u explain in detail about four regions of transistors..pleasee
Thanks sir...please upload bjt related problems
Plz add oapamp portion as well
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
explain about last portion of this lecturer regions of the transistor
Thanks a lot sir
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
what is meant by beta heat dissipation which you said at 5:32
Thank you
Thanku so much sir....
it was.... amazing....
Penaldo
regions of operation shown are same for both pnp and npn or not?
great sir
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
Sir Weee need more Lectures
How does the case 1 operates as an amplifier .Explain it clearly.
damn! wish i found your channel earlier!
thank you
I talk about npn transistor,the electron move to emitter to base then current flow base to emitter how ,electron direction same as current direction
Amazing...keep it up..
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.
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
please upload the op-amp concepts
sir by doping point of view . emitter is highly doped then base then collector
What happens to transistor in on and off mode? How does it act?
Shaandar jabardast jindabaad
How we get to know it is forward biased or reverse biased
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.
plz provide materal related to ujt also.
Sir. I have one doubt u r saying that transistor transfers low to high resistance when weak signal at input is given and an amplified version was taken at out put. But amplification name itself suggest that current is amplified then how come d higher resistance comes as earlier ur told. Plz tell me sir
buddy,,,its voltage amplification...
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
Sir
in
the last case of the table
4th case is rarely used but why it is used i means it's purpose???
Thanks sir.....
Sir make video for ic fabrication
in the reverse bias condition of collector and base junction how a current can flow, because on increasing current, depletion layer increases as a result current due to majority charge carriers decreases and then their exist a current only due to minority charge carrier so how the current passes from base to collector... If it flows then can we say that at every single time when transistor is on it crosses the breakdown voltage.
what do you actually mean transfer resistors? little bit confusion about this statement. waiting for your response. thanks.
Please explain me the working of the regions once more
if the transistor has two things for current flow : holes and electrons and for that reason it is called bipolar then similarly , diode also has current flow due to both of the above things and so shouldn't be the diode be also called bipolar diode ?
thanks a lot
Understood sir.
Sir, can you say one practical example using the 4.th mode means when J1 is rb and J2 is fb???
Kids: Doping
Legends : Diping
lmao