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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define a current mirror.
💡 Hint: Focus on the purpose of a current mirror.
Question 2
Easy
What is the role of the reference current in a BJT current mirror?
💡 Hint: Think about how the current is set.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the primary function of a BJT current mirror?
- To amplify voltage
- To replicate current
- To store charge
💡 Hint: Consider its use in maintaining stability in circuits.
Question 2
True or False: The output current in a BJT current mirror is always equal to the reference current.
- True
- False
💡 Hint: Think about how real conditions affect ideal calculations.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a simple BJT current mirror with a desired IREF of 2 mA. Given VCC = 15V and VBE = 0.7V, determine RREF and discuss the output current.
💡 Hint: Pay close attention to your resistor choices.
Question 2
Explain how you would enhance the performance of a simple current mirror in a circuit requiring high accuracy of the output current. Discuss some design modifications.
💡 Hint: Think about ways to mitigate the base current problem.
Challenge and get performance evaluation