Practice Operation (6.6.1.2) - Oscillators and Current Mirrors - Analog Circuits
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Operation

Practice - Operation

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Explain the purpose of a current mirror.

💡 Hint: Think about applications where consistent current is necessary.

Question 2 Easy

What is the function of a diode-connected transistor in a current mirror?

💡 Hint: Consider how diode configuration works in transistors.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the primary function of a current mirror?

To amplify signals
To replicate a reference current
To filter frequencies

💡 Hint: Think about the need for consistency in current.

Question 2

True or False: The operation of MOSFET current mirrors relies on gate current.

True
False

💡 Hint: Consider how the input impedance differs between BJT and MOSFET.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Design a BJT current mirror circuit to supply a specific I_out. Given I_ref as 1mA and typical beta of 100, determine necessary transistor parameters.

💡 Hint: Consider real-world losses and the effective range of beta.

Challenge 2 Hard

Analyze the relationship between temperature variations and output currents in a current mirror design. How would you mitigate these factors?

💡 Hint: Relate thermal effects to current characteristics in BJTs.

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Reference links

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