43 BJT Circuits at DC

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  • Опубліковано 11 гру 2024

КОМЕНТАРІ • 51

  • @ahyungrocks5509
    @ahyungrocks5509 9 місяців тому +7

    This is super helpful. 30 years ago when I took microelectronics while learning English, I was not able to comprehend despite I passed the course. Because of that I stayed away from the dark side (analog). Didn't realize this is so much more fun than 1s and 0s.

  • @mugiwara-no-luffy
    @mugiwara-no-luffy 2 роки тому +12

    I hope you know how valuable these videos are! Cheers from Canada.

  • @mohamedqasim7787
    @mohamedqasim7787 3 роки тому +4

    Thank you Prof. for this precious explanation 🙏

  • @jxcjxuan
    @jxcjxuan 7 місяців тому +1

    clear and smooth explanation, suggesting to insert the special formula for reference

  • @raccoonlord9646
    @raccoonlord9646 11 місяців тому +2

    Big W, U saved my ahh for this exam bro u the best

  • @tonykimani9933
    @tonykimani9933 6 місяців тому

    perfect for what I have been looking for

  • @ramirosuarez9537
    @ramirosuarez9537 7 місяців тому

    I am so grateful for your explanation. Thanks

  • @cucuteanualexandru-ciprian4244

    thank you for your video

  • @Lexyvil
    @Lexyvil 4 місяці тому

    For the circuit at 9:30, why is there a current I_c when the diode at the collector point is against I_c? (Reversed)? Since it's reversed bias, shouldn't I_c be 0?

  • @angelabryan7529
    @angelabryan7529 8 місяців тому

    I hope you will consider adding videos for the second half of the textbook: chapters 9 -14

  • @gilbertgonzalez7890
    @gilbertgonzalez7890 3 роки тому +2

    Thank you! Superb explanation

  • @LukiePookieStudy
    @LukiePookieStudy Місяць тому +1

    19:10 isn't it 10V for Rth because 15V*(100/150) = 10 not 5

    • @El650Jefe
      @El650Jefe 22 дні тому +1

      No because Vb is the voltage drop across the 50k resistor not the 100k resistor

  • @ToolsAandLogic
    @ToolsAandLogic 2 місяці тому

    How did you derived 0.3 v value?
    How can electron pass base collector junction, when it is in reverse bias? Generally, in PN junction, in reverse bias, election can not cross junction in reverse bias.

  • @arashyusefi1889
    @arashyusefi1889 11 місяців тому +1

    Thanks Microelectronics 💖✨💫🙏🌹💖

  • @jonelberdejo9446
    @jonelberdejo9446 Рік тому

    In your final analyis I think the transistor in saturation mode. Because the base current is approximately 129 micro amps and then the current gain is 100 so the collector current should be(100*129microA), which is 12.9 mA. So to find the collector voltage we have to subtract 15-(12.9mA*5000) and we get an impossible answer that is -49.5 which indicates that the transistor is operating in the saturation mode. A hard saturation

    • @gwav1a
      @gwav1a 11 місяців тому

      Yes it turns out like that but in actual fact you apply 0.7 across the base emmitter diode and the large part of the majority carriers from the emmitter cross the base collector junction to constitute the collector current. The smaller portion comes out through the base. The proportionality of collector current to base is beta. Viewing it this way shows causation - what results in what. To me base current is the result, not the cause of collector current. I would say the base current is a function of collector current not the other way

  • @babatundetaiwo2817
    @babatundetaiwo2817 3 роки тому +3

    So let me get this straight: If I apply a 0.7 Voltage bias from Base with respect to the emitter while also supplying current in the base of the NPN, I will get an output current from Collector to emitter that is a multilocation beta of the Base current. This the emitter is what I'm taking everything in respect to : Voltage form Base to emitter with a current applied to the base outputs a BETA times the input current flowing from collector to emitter.

  • @niccettajames6072
    @niccettajames6072 2 роки тому +1

    Good job explaining

  • @SAhellenLily
    @SAhellenLily 7 місяців тому

    Thank you 👍

  • @sibilakshman9575
    @sibilakshman9575 Рік тому

    In saturation why is Vce = 0.2 V ?

  • @labanidharnaik1103
    @labanidharnaik1103 2 роки тому

    Very clear.

  • @makokakao6782
    @makokakao6782 11 місяців тому

    which books is you took the problem examples ?

    • @nelsonkh001
      @nelsonkh001 10 місяців тому +2

      Microelectronic Circuits by Sedra & Smith

  • @GOODBYE.SHAHZAIBNAJAF
    @GOODBYE.SHAHZAIBNAJAF 2 роки тому

    Great man

  • @tinaquayum8910
    @tinaquayum8910 Рік тому

    How did you got .2v

  • @sipoVvids
    @sipoVvids 7 місяців тому

    Great!!

  • @thokozaninhlakahh9255
    @thokozaninhlakahh9255 Рік тому

    how much is alpha ,please show steps

  • @shantnukumar3982
    @shantnukumar3982 7 місяців тому

    What is this book name

  • @Epigonee
    @Epigonee 2 місяці тому

    OMG AN ACTAL ACCENT

  • @LegoBenjago
    @LegoBenjago Місяць тому

    big up da mandem

  • @MatthewAllen-t1w
    @MatthewAllen-t1w 3 місяці тому

    Connelly Parkway

  • @LauraGarza-q7x
    @LauraGarza-q7x 2 місяці тому

    Jarrett Grove

  • @malekhaboosh476
    @malekhaboosh476 2 роки тому

    Use BJT transistor to design an amplifier circuit that operates in the frequency range 10kHz100kHz. Verify your design by simulating the design using the circuitmaker software. Use
    standard resistor values (10% tolerance). The design should meet the following criteria:

  • @StuartSegers-g6w
    @StuartSegers-g6w 2 місяці тому

    Caleb Prairie

  • @VndNvwYvvSvv
    @VndNvwYvvSvv 2 роки тому

    Thanks, but in the final analysis around 22:00 - 23:00 you dropped the k on the resistor. I think it's 33.3k(IB) plus (beta+1)IB. That's 33,300 +303, so then Ib = 4.7/(33,603) ≈ 139.87 uA.

    • @ohbaewan3147
      @ohbaewan3147 2 роки тому +2

      not quite, he factors out the k at first because it is part of the units, so its (beta+1)IB*3 which is why it simplifies to 303 but is still in units of k, then in the end he adds them up, 303 + 33.3 = 336.3 and adds the k back during unit evaluation.

  • @RosaRichardson-k6w
    @RosaRichardson-k6w 2 місяці тому

    Asia Glen

  • @worldgalaxyuniversemilkiwa1321
    @worldgalaxyuniversemilkiwa1321 8 місяців тому

    Negative and positive 😊

  • @PalmerAbel-h9f
    @PalmerAbel-h9f Місяць тому

    Ledner Ramp

  • @BraySetlla-h2b
    @BraySetlla-h2b 2 місяці тому

    Kallie Court

  • @WellsLindsay-e6e
    @WellsLindsay-e6e 2 місяці тому

    Gonzalez Ronald Gonzalez Sandra Harris Donald

  • @SidneyNelson-j4x
    @SidneyNelson-j4x Місяць тому

    Turcotte Rue

  • @ikmalhakimi2957
    @ikmalhakimi2957 Рік тому

    TQ OIIIIII !!!🤣

  • @FrancisLevy-h3r
    @FrancisLevy-h3r Місяць тому

    Tad Oval