Razavi Electronics2 Lec41: Effect of Loading in Feedback, Opening the Loop Properly

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  • Опубліковано 31 жов 2024

КОМЕНТАРІ • 19

  • @MsSujoy
    @MsSujoy 6 років тому +12

    Your style of teaching analog electronics is like first footprint on the moon.

    • @coolwinder
      @coolwinder 3 роки тому

      I completely agree haha

  • @ashikjayamon3963
    @ashikjayamon3963 3 роки тому +7

    If you found the mistake at 32:15 before Prof. himself corrected it @ 33:00. That means you truly and honestly have almost reached the end of two brilliant series of Electronics by this legend.

    • @yadukrishnanm6280
      @yadukrishnanm6280 3 роки тому

      Absolutely true

    • @ayushmeena5708
      @ayushmeena5708 3 роки тому +1

      Are You Studying for GATE ?

    • @АджайАли
      @АджайАли 2 роки тому +2

      :) I paused the video and solved it correctly before the prof. showed the right solution..
      Indeed, it's going to end really soon now

  • @coolwinder
    @coolwinder 3 роки тому +4

    Note: When returning voltage, output of K is opened and shorted when returning current (perfect load); When sensing voltage, input of K is shorted and opened when sensing current (ideal zero input).
    Sensing - Return | Input | Output
    Voltage - Voltage | Short | Open
    Voltage - Current | Short | Short
    Current - Voltage | Open | Open
    Current - Current | Open | Short

  • @coolwinder
    @coolwinder 3 роки тому +4

    01:26 - Intro and Review
    04:13- Illustrative Example of the Problem
    12:40 - Opening the Loop Properly
    >> 13:57 - Making a Copy of the Return Network K
    >> 19:50 - Intuition
    >> 22:22 - Quick Voltage-Voltage Example
    28:17 - Two-Stage Poor Man's Amplifier Example
    37:00 - Two-Stage Trans-Impedance Amplifier Example
    45:50 - Op-Amp TIA Example

  • @zinhaboussi
    @zinhaboussi 6 місяців тому

    01:16 Understanding the impact of loading effects in feedback circuits.
    04:10 Analyzing closed-loop voltage gain in the presence of non-ideal conditions
    10:35 Properly opening the loop is essential due to changes in open loop gain.
    13:42 Determining the proper grounding or opening for nodes in feedback circuits.
    19:06 Feedback network considerations
    21:35 Understanding feedback loading effects on impedance.
    26:52 Effect of loading in feedback on open-loop parameters
    30:10 Opening the loop allows for analysis of open-loop gain and impedances
    35:33 Understanding the feedback factor K in closed-loop parameters.
    38:19 Analyzing the open-loop performance and gain calculation of the circuit
    44:15 Understanding the concept of opening the loop properly in feedback circuits.
    Crafted by Merlin AI.

  • @coolwinder
    @coolwinder 3 роки тому

    45:50 - Note: Sensing network is in parallel (sensing voltage exactly like resistor divider), as it is not connected (in series) from one terminal V_out, to he other terminal gnd, of the feed-forward amplifier.

  • @muratt6894
    @muratt6894 6 років тому +2

    Thank You

  • @ssayank
    @ssayank 5 років тому

    Would you please tell, where can I get the exact reason for the loop opening strategy? How are you exactly sure the loading of the stages is as per the table described by you?

  • @srinivasan7790
    @srinivasan7790 5 років тому

    @7:00 why only output resistance is considered what about the input resistance of feedforward amplifier?

    • @wilmdrdo1228
      @wilmdrdo1228 4 роки тому

      It's because of gravity becomes butterfly.

  • @MixalisXaxalios
    @MixalisXaxalios 3 роки тому

    25:00 how is the transistor biased ? without a voltage in gate ?

    • @VIGNESHBSBEC
      @VIGNESHBSBEC 2 роки тому

      we are focusing on small signal model.So biased or unbiased transistor does not matter here.

  • @sonmez.furkan
    @sonmez.furkan 5 років тому +5

    Analog IC sal beni bi zahmet, mezun olam.
    imza
    odtülü ceyrancı