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4 cards from this section. Quick, good the night before a test.
What is the purpose of a feedback network in amplifiers?
Think about how feedback helps manage output.
Define a pole in the context of frequency response.
Consider what happens to gain as frequency increases.
What does negative feedback do in an amplifier?
Think about how feedback influences output.
True or False: The location of poles does not affect the system's frequency response.
Revisit what poles represent in frequency domains.
If an amplifier has a gain of 50 and feedback factor β = 0.1, what will be the gain after feedback is implemented? Further, illustrate this with a Bode plot showing both original and feedback gain.
Make sure to plot the frequencies correctly on a logarithmic scale.
Discuss a scenario where two poles in a feedback amplifier can lead to instability and how to resolve this issue in design.
Think about how design choices affect stability in feedback systems.
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