Stages Two and Three: Voltage Derived

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The discussion focuses on designing a two-stage amplifier with voltage-derived feedback configurations. The user seeks guidance on correctly laying out a Stage Three amplifier with parallel applied feedback and a Stage Two amplifier with series applied feedback. A respondent points out that the user's initial diagrams show single-stage feedback rather than the intended two-stage feedback. They also offer to assist further if the user clarifies their specific issues. The conversation emphasizes the need for a proper understanding of feedback configurations in amplifier design.
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So i want to make a Stage Three: Two Stage Amplifier with Voltage Derived - Parallel Applied Feedback and a Stage Two: Two Stage Amplifier with Voltage Derived - Series Applied Feedback

But am not sure how to layout it out correctly because i have never done this before so i layout'ed it out how i would think it would look like :
 

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  • Two Stage Amplifier with Voltage Derived -parralel applied feedback.PNG
    Two Stage Amplifier with Voltage Derived -parralel applied feedback.PNG
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  • Two Stage Amplifier with Voltage Derived -Series applied feedback.PNG
    Two Stage Amplifier with Voltage Derived -Series applied feedback.PNG
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I'm not all that clear on what you are asking and I'm no expert, but since you have no replies, I'll have a stab.
In your first diagram, I can see voltage series feedback around the first transistor, but no two stage FB.

Similarly in your second I can see single stage voltage series FB by R3.
I've added typical single stage voltage parallel FB in green.

If you'd like to explain your issues a bit more, I'll try to help if I can

FB2.png
 
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