Introduction to Bipolar Junction Transistor (BJT)
Ғылым және технология
In this video, the Bipolar Junction Transistor, its different regions of operation, different configurations, and the working is briefly explained.
By watching this video, you will learn the following topics:
0:00 Introduction
0:20 What is BJT?
1:12 Construction of BJT
3:24 Different Regions of Operation of BJT (Active, Saturation, and Cut-off)
6:20 Symbols of NPN and PNP transistor
7:05 Different Configurations (CE, CB, and CC)
8:03 Working of BJT
12:30 Different Currents in BJT
What is Bipolar Junction Transistor (BJT)?
Bipolar Junction Transistor is a 3 terminal semiconductor device that can be used as a switch or as an amplifier in electronic circuits.
The reason it is known as bipolar is because there is a flow of current in BJT due to two types of charges (unlike FET)
Holes and Electrons
Construction of BJT:
The BJT consist of the three doped regions. The three regions of the BJT are known as Emitter, Base, and Collector.
And based on the doping of the three regions, it is known as either NPN or PNP transistor.
In BJT, the emitter is heavily doped, Base is lightly doped and the collector is moderately doped.
The width of the base region is much smaller than the other two regions.
The job of the emitter region is to supply the electrons (that's why it is known as the emitter)
While the collector region collects the electrons supplied by the emitter.
Different Regions of Operation of BJT:
The BJT can be operated in the following regions:
1) Active Mode (BE Junction is Forward Biased, CB junction is reverse biased)
2) Cut-off Mode (Both BE and BC junctions are reverse biased)
3) Saturation Mode ( Both BE and BC junctions are forward-biased )
4) Reverse Active Mode (BE junction is reverse biased, BC junction is forward biased)
Different operating Configurations of BJT
When BJT is used as an amplifier, it can be configured in the following configurations:
1) Common Emitter (CE ) Configuration
2) Common Base (CB) Configuration
3) Common Collector (CC) Configuration
And at the end of the video, the working of the BJT in the active region has been explained and the relationship between the different BJT current has been established.
In this video, the basics of the BJT is explained. By watching this video, you will learn the different configurations, different types of BJT, symbols of BJT, working of BJT and different current and their relation in BJT.
This video will be helpful to everyone in understanding the basic of Bipolar Junction Transistor (BJT).
#BJT
#Transistor
#BipolarJunctionTransistor
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Пікірлер: 381
The timestamps for the different topics covered in the video: 0:20 What is BJT? 1:12 Construction of BJT 3:24 Different Regions of Operation of BJT (Active, Saturation, and Cut-off) 6:20 Symbols of NPN and PNP transistor 7:05 Different Configurations (CE, CB and CC) 8:03 Working of BJT 12:30 Different Currents in BJT For more Solved Examples on the BJT, check out this playlist: kzread.info/dash/bejne/lK2EpLymc8nZkps.html
@gunanagasindhu9592
4 жыл бұрын
while operating in active region at 3:24 it is in common base , but it is not in the case at 8:01 (it is in common emitter config and the condition Base Emitter forward bias and Base Collector reverse bias doesn't make any sense ) pls explain sir
@user-vj5wd6wq1v
4 жыл бұрын
Differentiate between NPN and PNP transistors. According to you which one is going to switch faster. ؟؟؟؟؟؟
@sudityagupta9193
3 жыл бұрын
🎸
@briankiprono4580
Жыл бұрын
3.35 you said R-B is reverse biased, should be B-R is reverse.
@94D33M
Жыл бұрын
@@gunanagasindhu9592 I too went back and saw that this was the case. Anyone have an explanation?
Bro it was excellent! The channel deserves huge success! One day all Electronics students follow your videos! And you deserve it 🙏
@solapowsj25
3 жыл бұрын
It's not correct. As per electronic engineering.
@albertoi.cruzgalvan3446
2 жыл бұрын
@@solapowsj25 I agree with you. It's clearer than my University teachers.
@amitsharma-rt2ht
2 жыл бұрын
But he should off the add
@shefalisinghbaghel6844
Жыл бұрын
Bhai kyu jhoot bol raha... 😓😓 Kuch samajh nhi aa raha hai, pechla ek ghanta se same video dekh rahe hu.... 😓😓
@user-sc1wi7nz2n
3 ай бұрын
@@shefalisinghbaghel6844 Tum achha ladka nahi hai sahi se dhyan laga ke concentrate karke 1x me dekho tab achha ladka
Thanks a lotttt!!! I hadn't understood how amplification takes place in college lecture and therefore I couldn't follow the concepts that came afterwards, but now I understand it clearly. Will surely watch the other BJT videos. Keep up the good work!
awesome video i didn't understand anything in lecture but now my concepts are crystal clear and amplified as a transistor in active region. keep doing this good job. your channel deserves huge appreciation
감사합니다 최고의 BJT 강의 입니다. 전자회로에 입문하면서 하나하나 생소한 개념이 많아 원서를 독학하는 것이 버거 웠었는데 이 영상을 보고 트랜지스터가 어떻게 작동하는지 잘 알게 되었씁니다 다른영상도 찾아볼게요!~!
I was so lost when this was explained to me in class. Thank you for making such a clear and concise video.
Thank you so much! You really know how to explain BJT clearer than my professor
Excellent explanation. BJT is always a topic of confusion for me and these videos just simplified it a lot for me
wow. awesome ! just awesome. explained in a very good manner. easy to understand. thank you very much for uploading this video sir. 6 stars out of 5. (star amplification :)
Thank you bro for your wonderful talent on uploading the best electronics videos.I visit many channels,but this was the best of all them.keep on uploading bro😘
Thank you for uploading this video as requested. Thank you !! 😍😍
No one writes the notes in the description except you....thank you sir
Best channel on youtube , specially short notes in the descriptions are so helpful
Your explanation made everything so easy to understand! Thank you so much!
Thank you for posting this. I am an EE student at CalState Long Beach and the EE department there is terrible, especially for the electronics concentration. I think I learned more form this video than I did from the utterly useless professors that teach it at CalState.
Thanks a lot brother. You really made BJT easy to learn for me.... ! Keep up the good work!
thank you from bottom of my heart , 5stars , crystal clear concepts
Wonderfully explained the concepts! It was really helpful. Great job man!
you're a life saver this video is so easy to understand keep up the good work
Seamlessly explained! Thank you!!
muito obrigado , ótima aula !
Transistors are tough. This video was a great introduction to some of the essentials
thanks a lot, sir much love and appreciation from south africa. I just made 3 pages of notes in 17 minutes 🥰. More understanding than in class 😄,
Hii sir, your videos are so helpful to me. The way you explaining is so interesting to listen.
Insahallah sir you will be the top electronic teacher on KZread in a fucture
Hats off, amazing work. good refresher material!!
Thank you for this video. It helped me
I'm too confused in sign notation, VBB, VCC, VBE, VCE,... Thank you so much to clear my confusion Thank you, sir...
Thank-you so much. This video helped me a lot 😍.
I think you could focus more on explaining the physic than the equations. Equations are secondary.
@prithviraj4453
8 ай бұрын
Bhai kya kar rahe ho aajkal
@imjustcurious360
4 ай бұрын
@@prithviraj4453 🤣
@user-sc1wi7nz2n
3 ай бұрын
@@imjustcurious360 ? 🧐🤔
@SM-iv4pm
2 ай бұрын
???
Thank you so much. Great explanation.
Best Video for Transistor in KZread.
it was a good session for a beginner!. Thanks to you.
Thanks for the explanation!
Thumbs up, keep up the brilliant work.
my doc's explanation in class sucked, now everything is cleared up. keep up man with the good work.
@trueindian5953
2 жыл бұрын
Bro I m first year Student , can I watch this for college exam
It's simple way of know about BJT... Very nice sir..
Simply and easily understand yhe concept. ..wow...good channel
I wish it were that easy to learn when I was graduating! :P
Very clear explanation 👍 , Thank you sir Vedio is helpful to me
Thank you very much this channel and your videos are helping me a lot🙏🙏
This is best channel to learn electronics... Tq
very very good explaination, all concepts in theory are based on sense...
Bro I'm big fan of your videos..... very good explanation
bro can you give some brief explanation of single ended and differential inputs
A very nice and well explained introduction to BJT
Amazing video!Thanks!
Perfectly presented, I wish I found your Channel earlier
Excellent . Keep up the good work
Thanks alot brooh...!! Tommorow is sem exam this is too gud
Awesome Video for revision 👍🙂
Thank sir, it makes sense, hope that in the upward videos you can add subtitle because I'm not good at listening to English
I bow down my head for your explanation bro.. how briefly it was🙏
Sir your videos are amazing. So when we are doing Biasing we are not actually changing the polarities of the DC biasing but instead for example in saturation the collector voltage becomes larger than base which is larger than emitter, right?
really awesome content👌👌
Excellent teaching for all students👦📖🎒
really awesome explanation : ) : )
7:05 Common base, emitter, collector configuration 12:30 Different currents in BJT transistor
Awesome lecture sir
awesome waiting for your upcoming videos about BJT
@dineshj1998
4 жыл бұрын
set this week for all about electronics..started sterday, watching all your videos one by one.great explanation. will complete all the videos...b4 you post the nxt video..grt work...keep going...
Love your videos bro❤
Good demonstration
Excellent video!
i love you, you saved my exams
Perfect explanation... I only have trouble understanding your english (im not fluent english speaker)
@ahbarahad3203
4 жыл бұрын
neither is he, its the indian accent
@eduardosantana1793
4 жыл бұрын
@@ahbarahad3203 that's not polite, say smf about Indian accent.
@shashankbj3804
3 жыл бұрын
@@ahbarahad3203 nobody asked lmao
Please upload further videos great. Explanation
very clear explanation provided
Having some doubts in transiator biasing But still video is very awesome. Thanks for explaining.
@vineetkarmakar2305
2 жыл бұрын
You are in which college?
Thanks for sharing.
Thanks alot..it was a great help
Sir.I have a question for this video.What application do you use to do this circuit.I see your video very easy to understand with explain.
Thanks brother .keep it up..
I love you man, Thank you
Sprb explanation sir
Awesome Content Sir
Awesome information 👍👍👍👍
Nice and simple explaination
Welldone bro..
Bhai jldi jldi bnaa video we really love it and want to watch more
@ALLABOUTELECTRONICS
4 жыл бұрын
Very soon the next video will be posted.
Thank you for the video
No more words ...killing explain ation
Very nice class sir❤
It was very helpful. Thank You. Please make the sound quality better.
from egypt good for you
Awesome video 🤩 👌
Thank you, sir!
Great video.
Excellent teaching
Nice video thanku so much🙏
wow nice explain bro 😍😍
Thank you very much
thank you so much boss
Very nice explanation .....
Good class sir
Well explained
It really helps me
you're a legend
Very good 👍
Excellent !!
thank you so much for these videos, they really help, btw, I have a question concerning MOSFET transistors, I did see that you made a playlist about them as well, and I wanna learn them, do I have to understand BJTs to understand MOSFET?
@ALLABOUTELECTRONICS
3 жыл бұрын
No, you can learn them independently.