30.3.4 - Cutoff Frequency and Capacitor Calculations
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Practice Questions
Test your understanding with targeted questions
What does a coupling capacitor do in an amplifier circuit?
💡 Hint: Think about the behavior of AC and DC signals.
What is the quiescent current (I_C)?
💡 Hint: Consider the state of the circuit in the absence of input.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary function of a common emitter amplifier?
💡 Hint: Think about the purpose of amplifiers.
True or False: The output swing of an amplifier is determined solely by the supply voltage.
💡 Hint: Consider how bias settings can affect what limits you have.
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Challenge Problems
Push your limits with advanced challenges
Design a common emitter amplifier with a supply voltage of 15V, aiming for a gain of 250 and an output swing of ±7V. What values for R and C should you choose?
💡 Hint: Balance gain requirements with output swing constraints while considering thermal limits.
You have an amplifier with a desired cutoff frequency of 60Hz and a load resistance of 3.9kΩ. Calculate the necessary coupling capacitor value.
💡 Hint: Ensure that your calculations involve consistent units and focus on the impedance effects.
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