69.2.1 - Stability Issues and Parameter Variations
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Practice Questions
Test your understanding with targeted questions
What is β in a transistor?
💡 Hint: You can find this in the glossary or check the definitions discussed.
What happens to the operating point if Early voltage increases?
💡 Hint: Think about how voltage influences the transistor's operation!
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does an increase in Early voltage typically do to the stability of a CE amplifier?
💡 Hint: Think about how Early voltage relates to the performance across varying conditions.
True or False: Feedback in an amplifier circuit will always increase gain.
💡 Hint: Remind yourself of the role feedback plays in circuits.
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Challenge Problems
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You are asked to design a CE amplifier with expected β of 150. If β unexpectedly decreases to 130, discuss how you will redesign the circuit to maintain stability.
💡 Hint: Recall the feedback principles discussed.
Given a CE amplifier configuration, calculate the new operating point if Early voltage decreases drastically after changes. What calculations must be re-evaluated?
💡 Hint: Understand how Early voltage affects the voltage across the transistor.
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