86.2.2 - Current Mirror using BJT
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Practice Questions
Test your understanding with targeted questions
Define a current mirror and its purpose.
💡 Hint: Consider what current mirrors stabilize.
What is a reference current?
💡 Hint: Think of it as the 'target' current.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary function of a current mirror?
💡 Hint: Focus on stability and consistency.
True or False: Early voltage is not relevant in a BJT current mirror.
💡 Hint: Think about how BJTs behave under different conditions.
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Challenge Problems
Push your limits with advanced challenges
Given a BJT current mirror where the supply voltage is 12V, the resistor is 22.8 kΩ, and reverse saturation currents are provided, calculate the expected output current.
💡 Hint: Break down the parameters systematically.
Design a BJT current mirror with a beta-helper and evaluate how the output changes when adjusting the reference current.
💡 Hint: Consider how base currents influence total output.
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Reference links
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