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Lets take a look at a linear amplifier

Discussion in 'Electronics Homework Help' started by Hasan2019, Sep 11, 2019.

  1. Hasan2019

    Hasan2019

    3
    0
    Sep 11, 2019
    Hi there,

    Hope my post find you well.
    I like to get attention the knowledgeble person in this post !
    So, kindly avoid this post if you wont have experience.

    I wanna post a circuit that may be explained by Dr. Kolar, a famous Swiss or Austrian proffesor.

    I need to know this application well, because I want to develope a 3-phase-calibrator.
    My application needs to amplify signal to a certain level. Class D switching is necessary!

    Here we go ....
    Explain kindly
    linear_amp.PNG
    1. Why we need to think SNR for this case?
    2. Why we need to think frequency gain voltage booster? Loop gain!
    3. Explain impedences, transcondactance etc for whole circuit.
    4. How the voltage and current is being controlled here?


    Thanks a lot!
     
  2. Harald Kapp

    Harald Kapp Moderator Moderator

    9,219
    1,857
    Nov 17, 2011
    Have you done any research at all into these question by yourself?
    These are fundamental questions. You need to study the matter in detail. There are no quick and easy answers.

    Why not look on the website where you found this circuit?
     
    Hasan2019 likes this.
  3. Hasan2019

    Hasan2019

    3
    0
    Sep 11, 2019
    Thank you Mr. Kapp.
    Actually I have a productive design similar to this circuit.

    If you can make some comment on it, then I could get a way to start.
     
  4. Audioguru

    Audioguru

    2,570
    580
    Sep 24, 2016
    The schematic you posted is class-AB and it wastes a lot of power making heat. A class-D amplifier is completely different.
    You did not say the frequencies or load impedance.
     
    Hasan2019 likes this.
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