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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the primary function of a simple BJT current mirror?
💡 Hint: Think about what current mirrors do.
Question 2
Easy
What does IREF stand for in the current mirror context?
💡 Hint: It is the current that establishes the operational point.
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 purpose of a simple BJT current mirror?
- To amplify signals
- To replicate current
- To reduce noise
💡 Hint: Focus on the replication aspect.
Question 2
True or False: The output current IOUT is always equal to IREF in a current mirror.
- True
- False
💡 Hint: Think about the limitations within the current mirror design.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a current mirror circuit to deliver a 2 mA output current with a reference voltage of 15V and a reference resistor chosen from standard E12 series resistors.
💡 Hint: Start with calculating the voltage after taking into account the base-emitter voltage drop.
Question 2
If the Early voltage (VA) of the transistors in your current mirror is determined to be 100V, how would you explain the impact of this value on the output resistance Rout?
💡 Hint: Consider how VA plays a role in output stability.
Challenge and get performance evaluation