Practice - Small-Signal Analysis and Frequency Response of Amplifiers (Low Frequency)
Practice Questions
Test your understanding with targeted questions
What does small-signal analysis help us achieve in amplifier design?
💡 Hint: Consider how transistors behave with small signal inputs.
What is the formula for voltage gain (A_v) in a CE configuration?
💡 Hint: Think about how the output voltage relates to the input current.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the main purpose of small-signal analysis?
💡 Hint: Think about how small inputs relate to transistor operation.
True or False: The voltage gain in a common-emitter amplifier is always positive.
💡 Hint: Remember the phase relation between input and output.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Design a BJT amplifier circuit to achieve a voltage gain of -50 with a desired input and output resistance of 10kΩ and 5kΩ respectively. What values for R_C and the biasing resistors would you select?
💡 Hint: Consider the relationships between input/output resistances and select a suitable transistor operating point.
Given an N-channel MOSFET running at a DC drain current of 2 mA with a transconductance parameter of 8 mS, calculate the small-signal parameters and design a small-signal model.
💡 Hint: Use the transconductance and output resistance formulas to guide your calculations.
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