Practice Calculations (11) - Design and Characterization of Oscillators and Current Mirrors
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Practice Questions

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Question 1 Easy

What is an oscillator?

💡 Hint: Think about devices that repeatedly produce signals.

Question 2 Easy

What are the conditions of the Barkhausen criteria?

💡 Hint: What must feedback signal conditions be to maintain oscillations?

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the primary function of a Wien Bridge oscillator?

To amplify signals
To produce a sine wave oscillator
To act as a switch

💡 Hint: Think about which function an oscillator serves.

Question 2

True or False: A current mirror aims to keep the output current constant despite varying loads.

True
False

💡 Hint: Consider what a circuit does when it mirrors current.

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Challenge Problems

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Challenge 1 Hard

Design a Wien Bridge oscillator with a frequency of 10 kHz. Choose suitable standard components and explain your choices.

💡 Hint: Focus on standard resistor values while calculating R.

Challenge 2 Hard

Explain how the Early effect influences the output current in a BJT current mirror and provide calculations for the expected output current.

💡 Hint: What does the Early effect describe in transistor characteristics?

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