Practice - The T-Model
Practice Questions
Test your understanding with targeted questions
What is the primary use of the T-Model?
💡 Hint: Think about what small-signal models are generally used for.
How do you calculate emitter resistance (r_e)?
💡 Hint: Recall the thermal voltage and the DC emitter current.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the T-Model simplify?
💡 Hint: Consider what models are designed for which types of circuits.
True or False: The dependent current source in the T-Model represents how output currents are affected by input signal fluctuations.
💡 Hint: Remember the conceptual interactions in an amplifier.
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Challenge Problems
Push your limits with advanced challenges
Design a circuit using a BJT with a specified gain of -50 using the T-Model. Calculate the required values for r_e and any resistors needed.
💡 Hint: Start by calculating the necessary r_e and then relate the transistor parameters to find resistor values.
Given a V_T of 25 mV, and a range of I_E from 0.5 mA to 2 mA, determine the r_e values at both extremes and discuss how it would affect circuit performance.
💡 Hint: Think about how small-signal parameters change the response of the amplifier and its stability.
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Reference links
Supplementary resources to enhance your learning experience.