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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define a BJT current mirror.
💡 Hint: Think about how these mirrors work in electronic devices.
Question 2
Easy
What does IREF stand for?
💡 Hint: Consider the source of the mirrored current.
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?
- Convert voltage
- Replicate a current
- Amplify a signal
💡 Hint: Think about what current mirrors are used for in circuits.
Question 2
True or False: The Early effect leads to a constant output current no matter the collector-emitter voltage.
- True
- False
💡 Hint: Consider the nature of the Early effect and its implications.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a simple BJT current mirror with a target reference current of 2mA and a beta of 150. Calculate the expected output current and discuss how to minimize the limitations observed.
💡 Hint: Utilize the correct formula and think critically about each component in the design.
Question 2
You have a current mirror circuit where the output current decreases drastically as the load resistance increases. Identify potential causes and recommend optimizations.
💡 Hint: Consider both electrical characteristics and physical attributes of the circuit to diagnose issues.
Challenge and get performance evaluation