Practice Lecture – 63 Multi-transistor Amplifiers: Cascode Amplifier (contd.) – Numerical Example (part A) (63.2)

Practice: Lecture – 63 Multi-Transistor Amplifiers: Cascode Amplifier (Contd.) – Numerical Example (Part A)

Lesson 63.2Multi-Transistor Amplifiers: Cascode Amplifier (Contd.) â€“ Numerical Examples (Part A)

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10 questions

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6 sample questions

Question 1.
What is a cascode amplifier? Explain its benefits.
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Think about how it compares to simpler configurations.
Question 2.
Calculate the base current I_B for a supply voltage of 12 V and R1 of 570 kΩ.
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Don't forget to subtract the V_BE from the supply voltage.
3Question 3.
What is one major advantage of a cascode amplifier over a common emitter amplifier?
- Higher Gain
- Lower Complexity
- Higher Input Capacitance
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Think about the design benefits in terms of GC.
4Question 4.
True or False: The Early voltage is an indication of the output resistance of a BJT.
- True
- False
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Recall its role in transistor functioning.
Question 5.
Design a cascode amplifier using given parameters, calculate the expected voltage gain, and discuss its advantages compared to a standard CE amplifier.
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Analyze the impact of each component on the overall amplification.
Question 6.
If the supply voltage increases to 15 V, how does that affect the operating points and voltage across the transistors?
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Consider changes in biasing and collector current.

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