Practice Motivation and a need of current mirror - 81.1.1 | 81. Current mirror circuits (Part-A) - A | Analog Electronic Circuits - Vol 4
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Knowledge

81.1.1 - Motivation and a need of current mirror

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the primary function of a current mirror?

💡 Hint: Think of how it performs in a circuit.

Question 2

Easy

Why is high output impedance important in current biasing?

💡 Hint: What happens to current when voltage changes?

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 main reason for using current mirrors in circuits?

  • To increase resistance
  • To stabilize current
  • To change voltage

💡 Hint: Focus on the function of biasing.

Question 2

Is it true that a higher output impedance in a current mirror leads to less variation in output current?

  • True
  • False

💡 Hint: Reflect on what impedance affects.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a current mirror circuit for a specific application, ensuring it meets the characteristics of high output impedance and minimal dependency on voltage variations. Describe the components you would use and their configuration.

💡 Hint: Think about the transistor's characteristics and the desired output.

Question 2

Analyze a case where a simple resistor is used instead of a current mirror as a biasing element. Discuss the potential impacts on circuit performance and stability.

💡 Hint: Evaluate the stability and performance of resistive biasing.

Challenge and get performance evaluation