Practice Case I: One Pole (95.2.2) - Effect of feedback on frequency response (Part-A)

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6 sample questions

Question 1.
Define what a pole is in the context of an amplifier.
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Think of frequency roll-off.
Question 2.
What does negative feedback do to the response of an amplifier?
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Consider how feedback can dampen oscillations.
3Question 3.
What effect does negative feedback have on amplifier gain?
- Increases gain
- Decreases gain
- No effect on gain
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Consider what happens when you apply feedback.
4Question 4.
True or false: The gain bandwidth product of an amplifier changes with feedback.
- True
- False
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Reflect on how gain and bandwidth interact.
Question 5.
Given an amplifier with a pole at -100 rad/s and a feedback factor of 0.2, calculate the new pole location.
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Use the formula for the new pole's location.
Question 6.
Design an operational amplifier circuit that stabilizes its gain using negative feedback. Explain your design choices.
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Think about standard feedback circuit designs.

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