Practice Analog Electronic Circuits (95.1) - Effect of feedback on frequency response (Part-A)

Practice: Analog Electronic Circuits

Lesson 95.1Effect of feedback on frequency response (Part-A)

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8 questions

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6 sample questions

Question 1.
What is a feedback network?
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Think about the basic definitions of feedback in electronics.
Question 2.
Define a pole in the context of a transfer function.
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Recall how poles affect system response.
3Question 3.
What effect does negative feedback have on amplifier gain?
- Increases gain
- Decreases gain
- No effect
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Think about the trade-offs associated with negative feedback.
4Question 4.
True or False: Feedback does not impact the bandwidth of an amplifier.
- True
- False
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Consider the implications of changes in gain.
Question 5.
Given an amplifier with a pole at s = -2, calculate the new frequency response when negative feedback with β = 0.4 is applied.
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Use the equation for pole shifting with feedback.
Question 6.
Analyze how changing from negative feedback to positive feedback (β > 1) affects stability for an amplifier with two poles at s = -2 and s = -4.
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Consider how the system's response changes under different feedback types.

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