Practice Voltage And Current Calculations (87.3.2) - Numerical examples on current mirror and its applications (Part-B)

Practice: Voltage and Current Calculations

Lesson 87.3.2Numerical examples on current mirror and its applications (Part-B)

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9 questions

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Exercise
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6 sample questions

Question 1.
Define a current mirror.
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Think about how the current is maintained.
Question 2.
What does it mean for a transistor to be in saturation?
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Consider the operational modes of the transistor.
3Question 3.
What is the primary purpose of a current mirror?
- Regulate voltage
- Replicate a current
- Control power
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Think about the role of current in circuits.
4Question 4.
True or False: Operating a transistor in saturation is essential for a current mirror to function correctly.
- True
- False
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What happens if they’re not in saturation?
Question 5.
A current mirror has the following specifications: V_supply = 12V, R_bias = 19kΩ, and I_ref = 1mA. Calculate the output current if the load remains constant regardless of voltage changes.
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Consider resistor drop and apply Ohm's law.
Question 6.
You need to design a current mirror that maintains a precise output current of 500µA. Specify the transistor types, bias voltage, resistor values, and relevant calculations to achieve this.
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Ensure the chosen components support operational stability.

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