Practice Operating With Available Supply Voltage (81.2.2) - Current mirror circuits (Part-A) - A

Practice: Operating with available supply voltage

Lesson 81.2.2Current mirror circuits (Part-A) - A

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9 questions

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6 sample questions

Question 1.
What is the primary function of a current mirror?
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Think about multiple uses in electronic circuits.
Question 2.
Why is high output impedance important in current mirrors?
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Consider the effects of voltage changes on current.
3Question 3.
What does a current mirror do?
- A) Maintains a constant voltage
- B) Maintains a constant current
- C) Divides the current
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Consider its main function in circuits.
4Question 4.
True or False: A current mirror can be used as a buffer circuit.
- True
- False
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Think about the roles current mirrors play in circuits.
Question 5.
Design a schematic diagram representing a basic current mirror using BJTs and explain how it functions with varying supply voltage.
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Consider the characteristics of BJTs and how they operate in saturation.
Question 6.
Analyze the limitations of a current mirror when temperature rises excessively, proposing modifications to improve its reliability.
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Think about intrinsic factors affecting transistor operations.

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