86.2.3 - Numerical Examples on Amplifiers using Current Mirror
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is a current mirror, and why is it used in circuits?
💡 Hint: Think about current dependency in circuits.
Explain the role of the K factor in a MOSFET current mirror.
💡 Hint: Reflect on how changes affect the output current.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What does a current mirror help maintain in electronic circuits?
💡 Hint: Think about the purpose of the current mirror.
True or False: A higher K factor always guarantees better performance in a current mirror.
💡 Hint: Consider what else might impact performance.
Get performance evaluation
Challenge Problems
Push your limits with advanced challenges
A current mirror using N-channel MOSFETs has a reference current of 1 mA and a supply voltage of 15V. If K1 = 2 mA/V² and K2 = 8 mA/V², calculate the current output and the minimum voltage for transistor 2.
💡 Hint: Don't forget to take the threshold voltage into account.
For a BJT current mirror with beta values of 150, discuss how the output current would vary if the base current loss is significant. How would you mitigate this in a design?
💡 Hint: Refer to the concepts we've discussed about current loss.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.