68.1.3 - Numerical Examples and Design Guidelines
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Practice Questions
Test your understanding with targeted questions
What does the term 'active load' refer to in amplifier design?
💡 Hint: Think about how passive components differ from active components.
What is the typical value of Vt at room temperature?
💡 Hint: This is a constant related to thermal voltage.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the purpose of using an active load in amplifiers?
💡 Hint: Think about the advantages active devices provide.
True or False: The output voltage in an amplifier with active load can be assumed as the midpoint supply voltage under balanced conditions.
💡 Hint: Consider how voltages split across equal resistances.
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Challenge Problems
Push your limits with advanced challenges
Given a transistor amplifier with an active load arrangement where V_CC = 15V and R values are provided, derive the expressions for Ic, V_out, and small signal parameters if β = 120.
💡 Hint: Break down the problem using Kirchhoff's laws to analyze the DC conditions.
Assess how introducing a load capacitor impacts the cutoff frequency of a CE amplifier with an active load, considering all relevant parameters.
💡 Hint: Use the RC time constant formula to evaluate the impact.
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