Introduction to Bipolar Junction Transistor (BJT)

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  • Опубликовано: 7 янв 2025

Комментарии • 404

  • @ALLABOUTELECTRONICS
    @ALLABOUTELECTRONICS  5 лет назад +201

    For more videos on BJT, check this playlist:
    bit.ly/3T6sASJ
    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:
    ruclips.net/video/byPBZmCfsb8/видео.html

    • @gunanagasindhu9592
      @gunanagasindhu9592 4 года назад

      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

    • @ملكةزماني-ذ4ر
      @ملكةزماني-ذ4ر 4 года назад +1

      Differentiate between NPN and PNP transistors. According to you which one is going to switch faster.
      ؟؟؟؟؟؟

    • @sudityagupta9193
      @sudityagupta9193 4 года назад

      🎸

    • @briankiprono4580
      @briankiprono4580 2 года назад

      3.35 you said R-B is reverse biased, should be B-R is reverse.

    • @94D33M
      @94D33M Год назад

      @@gunanagasindhu9592 I too went back and saw that this was the case. Anyone have an explanation?

  • @josephsagi3926
    @josephsagi3926 5 лет назад +415

    Bro it was excellent! The channel deserves huge success! One day all Electronics students follow your videos! And you deserve it 🙏

    • @solapowsj25
      @solapowsj25 3 года назад +3

      It's not correct. As per electronic engineering.

    • @albertoi.cruzgalvan3446
      @albertoi.cruzgalvan3446 3 года назад +4

      @@solapowsj25 I agree with you. It's clearer than my University teachers.

    • @amitsharma-rt2ht
      @amitsharma-rt2ht 3 года назад +1

      But he should off the add

    • @shefalisinghbaghel6844
      @shefalisinghbaghel6844 2 года назад +2

      Bhai kyu jhoot bol raha... 😓😓
      Kuch samajh nhi aa raha hai, pechla ek ghanta se same video dekh rahe hu.... 😓😓

    • @085_RahulMishra
      @085_RahulMishra 11 месяцев назад

      ​@@shefalisinghbaghel6844 Tum achha ladka nahi hai sahi se dhyan laga ke concentrate karke 1x me dekho tab achha ladka

  • @pwalterjerome1987
    @pwalterjerome1987 4 года назад +30

    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

  • @deekshas3936
    @deekshas3936 4 года назад +43

    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!

  • @priyanshukasaudhan786
    @priyanshukasaudhan786 3 года назад +5

    Best channel on youtube , specially short notes in the descriptions are so helpful

  • @nomanhassan9250
    @nomanhassan9250 2 года назад +2

    Insahallah sir you will be the top electronic teacher on RUclips in a fucture

  • @j05hb3an7
    @j05hb3an7 3 года назад +16

    I was so lost when this was explained to me in class. Thank you for making such a clear and concise video.

  • @i_am_anchal434
    @i_am_anchal434 Год назад +8

    No one writes the notes in the description except you....thank you sir

  • @yiningwang1571
    @yiningwang1571 4 года назад +10

    Thank you so much! You really know how to explain BJT clearer than my professor

  • @masautsophiri2449
    @masautsophiri2449 2 года назад +2

    my doc's explanation in class sucked, now everything is cleared up. keep up man with the good work.

    • @Psycho_Engineer786
      @Psycho_Engineer786 2 года назад +1

      Bro I m first year Student , can I watch this for college exam

    • @Sunit_Kumar
      @Sunit_Kumar 3 месяца назад

      @@Psycho_Engineer786 hello so are u in 3rd year now? Which course are u pursuing

    • @Psycho_Engineer786
      @Psycho_Engineer786 3 месяца назад

      @@Sunit_Kumar ECE

    • @Sunit_Kumar
      @Sunit_Kumar 3 месяца назад

      @@Psycho_Engineer786 from where?

  • @ianespinosa5056
    @ianespinosa5056 Год назад +6

    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.

  • @teammadmax4905
    @teammadmax4905 2 года назад +10

    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!~!

  • @jaydeepdey6132
    @jaydeepdey6132 4 года назад +4

    Best Video for Transistor in RUclips.

  • @abhinavsinghal314
    @abhinavsinghal314 5 лет назад +42

    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 :)

  • @vladododerovic4479
    @vladododerovic4479 4 года назад +5

    Your explanation made everything so easy to understand! Thank you so much!

  • @jyothiswaroopsantu
    @jyothiswaroopsantu 5 лет назад +5

    Excellent explanation. BJT is always a topic of confusion for me and these videos just simplified it a lot for me

  • @harikamounikaburagapu5419
    @harikamounikaburagapu5419 2 года назад +2

    Simply and easily understand yhe concept. ..wow...good channel

  • @MuhammadFaizan-br3cr
    @MuhammadFaizan-br3cr 5 лет назад +6

    Thanks a lot brother. You really made BJT easy to learn for me.... ! Keep up the good work!

  • @manojmaahi9522
    @manojmaahi9522 5 лет назад +12

    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😘

  • @monishkumar5353
    @monishkumar5353 Год назад +1

    00:12 Learn about Bipolar Junction Transistor
    02:28 BJT has three regions of operation
    04:27 BJTs have three regions of operation: cutoff, active, and saturation.
    06:39 BJT can be configured in three different configurations
    08:52 BJT is biased to forward bias Base Emitter Junction and reverse bias Base Collector Junction
    11:01 Electrons flow from emitter to collector due to reversed biased junction
    13:12 Bipolar Junction Transistors are current control devices
    15:33 BJT can amplify input signal by controlling input voltage and output current.
    Crafted by Merlin AI.

  • @mcbotface
    @mcbotface 5 лет назад +9

    Thank you for uploading this video as requested.
    Thank you !! 😍😍

  • @smittyflufferson1299
    @smittyflufferson1299 3 года назад +1

    Transistors are tough. This video was a great introduction to some of the essentials

  • @monalishabal4910
    @monalishabal4910 2 года назад +3

    thank you from bottom of my heart , 5stars , crystal clear concepts

  • @NithyasreeAddagalla
    @NithyasreeAddagalla 18 дней назад

    So so so thanks to you that I now finally lost the fear of writing beee exam to my sem.thankyou so much❤❤

  • @Frostbyte-Game-Studio
    @Frostbyte-Game-Studio 3 года назад +1

    you're a life saver this video is so easy to understand keep up the good work

  • @lavanyakorupolu2305
    @lavanyakorupolu2305 3 года назад +4

    Hii sir, your videos are so helpful to me. The way you explaining is so interesting to listen.

  • @ΑναστασίαΜαυρομάτη-τ2τ

    i love you, you saved my exams

  • @_AnanyaMukherjee
    @_AnanyaMukherjee 2 года назад +4

    Wonderfully explained the concepts! It was really helpful. Great job man!

  • @rakeshkulkarni4323
    @rakeshkulkarni4323 3 года назад +1

    Bro I'm big fan of your videos..... very good explanation

  • @tejomaya4817
    @tejomaya4817 4 года назад

    This is best channel to learn electronics... Tq

  • @debashrutibhattacharjee5023
    @debashrutibhattacharjee5023 4 года назад +2

    Seamlessly explained! Thank you!!

  • @Jabu_Mandlangisa
    @Jabu_Mandlangisa Год назад +1

    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 😄,

  • @smitanghan4565
    @smitanghan4565 4 года назад +3

    I'm too confused in sign notation, VBB, VCC, VBE, VCE,...
    Thank you so much to clear my confusion
    Thank you, sir...

  • @StupidBadyXD
    @StupidBadyXD 4 года назад +116

    I think you could focus more on explaining the physic than the equations. Equations are secondary.

  • @manojjadhav7857
    @manojjadhav7857 3 года назад +1

    Hats off, amazing work. good refresher material!!

  • @lakshminarayananm1284
    @lakshminarayananm1284 3 года назад +20

    7:05 Common base, emitter, collector configuration
    12:30 Different currents in BJT transistor

  • @saikirangaddam3670
    @saikirangaddam3670 3 года назад +1

    I bow down my head for your explanation bro.. how briefly it was🙏

  • @sudhamani3576
    @sudhamani3576 4 года назад

    It's simple way of know about BJT... Very nice sir..

  • @susmitsingh1775
    @susmitsingh1775 3 года назад +3

    Thanks for the explanation!

  • @ShannuRallapalli17
    @ShannuRallapalli17 11 месяцев назад

    Thanks alot brooh...!!
    Tommorow is sem exam this is too gud

  • @sumukhmgowda
    @sumukhmgowda Месяц назад +1

    u sayed my sem bro.... thanks :)

  • @pikachupikachu7507
    @pikachupikachu7507 4 года назад +3

    Thank-you so much. This video helped me a lot 😍.

  • @TakHandler
    @TakHandler 5 лет назад +6

    Bhai jldi jldi bnaa video we really love it and want to watch more

  • @Divya_2121
    @Divya_2121 3 года назад +1

    Very clear explanation 👍 , Thank you sir Vedio is helpful to me

  • @nztstudios4439
    @nztstudios4439 2 года назад

    Perfectly presented, I wish I found your Channel earlier

  • @borislavstoyanov3204
    @borislavstoyanov3204 4 года назад +44

    Perfect explanation...
    I only have trouble understanding your english (im not fluent english speaker)

    • @ahbarahad3203
      @ahbarahad3203 4 года назад +9

      neither is he, its the indian accent

    • @eduardosantana1793
      @eduardosantana1793 4 года назад +3

      @@ahbarahad3203 that's not polite, say smf about Indian accent.

    • @shashankbj3804
      @shashankbj3804 4 года назад +2

      @@ahbarahad3203 nobody asked lmao

  • @ferhatnusreturuc1809
    @ferhatnusreturuc1809 8 месяцев назад

    very very good explaination, all concepts in theory are based on sense...

  • @willwill3917
    @willwill3917 9 месяцев назад

    A very nice and well explained introduction to BJT

  • @dineshj1998
    @dineshj1998 5 лет назад +3

    awesome waiting for your upcoming videos about BJT

    • @dineshj1998
      @dineshj1998 5 лет назад +1

      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...

  • @savithaag499
    @savithaag499 3 года назад +1

    Thank you so much. Great explanation.

  • @ankitsingh-wg3cn
    @ankitsingh-wg3cn 3 года назад

    it was a good session for a beginner!. Thanks to you.

  • @gabrielcerini7350
    @gabrielcerini7350 4 года назад +10

    muito obrigado , ótima aula !

  • @tahmid1847
    @tahmid1847 2 года назад +1

    Thank God for India and Indians

  • @ritikabiswas9045
    @ritikabiswas9045 4 года назад +1

    I wish it were that easy to learn when I was graduating! :P

  • @sssfasih
    @sssfasih 5 лет назад +9

    Thank you for this video. It helped me

  • @RohitSingh-dj6uy
    @RohitSingh-dj6uy 4 года назад +1

    Awesome Video for revision 👍🙂

  • @byaswanth4060
    @byaswanth4060 3 месяца назад

    Super explanation i will learn more from you compare then our college

    • @ziotio
      @ziotio 2 месяца назад

      Is this for 1st year BTech

  • @khanhhuyen8630
    @khanhhuyen8630 2 года назад +1

    Thank sir, it makes sense, hope that in the upward videos you can add subtitle because I'm not good at listening to English

  • @abdxlive
    @abdxlive Год назад +1

    Awesome Content Sir

  • @sivakalyan03
    @sivakalyan03 4 года назад

    No more words ...killing explain ation

  • @thoughtpool8764
    @thoughtpool8764 4 года назад

    Thank you very much this channel and your videos are helping me a lot🙏🙏

  • @monishkumar5353
    @monishkumar5353 Год назад

    00:12 Learn about Bipolar Junction Transistor
    02:28 BJT has three regions of operation
    04:27 BJTs have three regions of operation: cutoff, active, and saturation.
    06:39 BJT can be configured in three different configurations
    08:52 BJT is biased to forward bias Base Emitter Junction and reverse bias Base Collector Junction
    11:01 Electrons flow from emitter to collector due to reversed biased junction
    13:12 Bipolar Junction Transistors are current control devices
    15:33 BJT can amplify input signal by controlling input voltage and output current.

  • @ramyashetty3097
    @ramyashetty3097 5 лет назад +2

    really awesome content👌👌

  • @arinut
    @arinut 2 года назад

    Awesome information 👍👍👍👍

  • @ghostishav
    @ghostishav 4 года назад

    Thumbs up, keep up the brilliant work.

  • @tanmaykumar1178
    @tanmaykumar1178 5 лет назад +3

    11:27 why will it flow towards the positive terminal as now after the combination of holes and electron an atom is resulted which is electrically neutral?

    • @aryamanz29
      @aryamanz29 4 года назад +1

      emitter is highly doped so some get neutral but most of them are moved towards collector side and contribute as "Ic"

  • @ishitwaupreti9767
    @ishitwaupreti9767 3 года назад +1

    Having some doubts in transiator biasing
    But still video is very awesome. Thanks for explaining.

  • @TSulemanW
    @TSulemanW 3 года назад

    Nice and simple explaination

  • @mohanhypo4004
    @mohanhypo4004 5 лет назад +14

    bro can you give some brief explanation of single ended and differential inputs

  • @lochanikalidasu9536
    @lochanikalidasu9536 2 года назад

    very clear explanation provided

  • @joohigarg8556
    @joohigarg8556 9 месяцев назад +1

    Good demonstration

  • @nildeeproy9074
    @nildeeproy9074 3 года назад

    It was very helpful. Thank You. Please make the sound quality better.

  • @ridhimachopra7215
    @ridhimachopra7215 3 года назад

    Amazing video!Thanks!

  • @moyoceillee684
    @moyoceillee684 4 года назад

    Excellent . Keep up the good work

  • @pragatigupta3550
    @pragatigupta3550 4 года назад +1

    really awesome explanation : ) : )

  • @Aisik_Bhattacharjee
    @Aisik_Bhattacharjee Год назад

    Excellent video!

  • @meerasabreen8799
    @meerasabreen8799 2 года назад

    Very good teaching sir

  • @adarshmishraf2-049
    @adarshmishraf2-049 8 месяцев назад

    Very nice class sir❤

  • @dadivenkatakoteswararao2520
    @dadivenkatakoteswararao2520 2 года назад

    Excellent teaching

  • @farhanupaul
    @farhanupaul 4 года назад +4

    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?

  • @tayyabahaider3872
    @tayyabahaider3872 3 года назад

    Thanks alot..it was a great help

  • @tonystark6515
    @tonystark6515 7 месяцев назад

    Love your videos bro❤

  • @bafokengau1894
    @bafokengau1894 3 года назад +1

    I love you man, Thank you

  • @hassaneleraky9104
    @hassaneleraky9104 5 лет назад +1

    from egypt good for you

  • @soul2197
    @soul2197 5 лет назад +1

    Please upload further videos great. Explanation

  • @EmmanuelPhiri-kn9ly
    @EmmanuelPhiri-kn9ly Месяц назад

    I suggests you reduce the speed when delivering the content...I think you were a little faster for me...but I love the way you teach n it really makes everything look so easy

    • @ALLABOUTELECTRONICS
      @ALLABOUTELECTRONICS  Месяц назад

      I have considered that and implemented that in the new videos.

  • @aditianand1565
    @aditianand1565 3 года назад +1

    Thank you for the video

  • @tylerufen
    @tylerufen 5 лет назад +3

    2:40 You deserve a freakin' medal, man.... -_-

  • @viswadevharilal8552
    @viswadevharilal8552 4 года назад

    Nice video thanku so much🙏

  • @kamleshprajapat6496
    @kamleshprajapat6496 4 года назад

    Very nice explanation .....

  • @masbro1901
    @masbro1901 3 года назад +1

    15:50 i don't quite understand, .." if we connect resistor between collector and emitter terminal, we can amplify the input signal.." what is relation with the resistor?

    • @ALLABOUTELECTRONICS
      @ALLABOUTELECTRONICS  3 года назад +1

      The input base current gets amplified by the factor of beta at the collector side. If the just connect the resistor between the collector and emitter then we can get the amplified output voltage. ( v = I*R).

    • @masbro1901
      @masbro1901 3 года назад +1

      @@ALLABOUTELECTRONICS ok i get it, thanks.

  • @nishanpaudel5876
    @nishanpaudel5876 4 года назад +1

    At 10:45 I didn"t understand why the majority of electron will flow towards collector rather than directly going towards the base and than Vee. Is there large difference in potential towards the collector and base or what? If anyone can help ??

  • @abhinavreddy2768
    @abhinavreddy2768 5 лет назад +1

    Awesome lecture sir

  • @manojhpmanu8363
    @manojhpmanu8363 5 лет назад +2

    Sprb explanation sir

  • @priyajitmondal6661
    @priyajitmondal6661 Год назад

    Thank you sir ❤️🙏👍

  • @abhijeetsinghchahal3319
    @abhijeetsinghchahal3319 3 года назад

    at 11:21; why do the electrons after combining with holes go towards the positive terminal of Vbb??

  • @arifromIITKGP
    @arifromIITKGP 3 года назад +1

    4:01 ... If Vc > Vb then how it will be in reverse biased?? I am talking about active region operation

    • @ALLABOUTELECTRONICS
      @ALLABOUTELECTRONICS  3 года назад +1

      It's NPN transistor. That means collector is N type and base is P type. In a active region, collector base junction should be reverse biased. That means Vc > Vb. I hope, it will clear your doubt

    • @arifromIITKGP
      @arifromIITKGP 3 года назад +1

      @@ALLABOUTELECTRONICS yes ... thanks ❤️

  • @AadityaPramodMalvadkar
    @AadityaPramodMalvadkar 9 месяцев назад

    wow nice explain bro 😍😍

  • @mounikaburagapu6290
    @mounikaburagapu6290 2 года назад

    Thank you sir this vedio is helped me alot in my sem1 exam 😀😀once again thank you so much sir ❤️❤️❤️

  • @samrawitlegesse6687
    @samrawitlegesse6687 2 года назад +1

    Thank you sir nice explanation. But what is our reference when we say base voltage, emitter voltage and collector voltage. Like if we say Vbe, it is voltage between base and emitter right? So how about Vb, Ve and Vc?

    • @ALLABOUTELECTRONICS
      @ALLABOUTELECTRONICS  2 года назад

      It is with respect to the ground. For example, Vb is the voltage at the base terminal with respect to ground.

    • @AndriyVorona
      @AndriyVorona Год назад

      @@ALLABOUTELECTRONICS Sorry, but where is the ground in case of those forward, saturation and reverse bias schematics that you showed? I mean, if we, for example, define the most bottom node as the ground, base voltage will be zero. So, I guess, it is more accurate to talk in terms of base-to-collector and base-to-emitter voltages, isn't it?