Practice Class B / Class AB Power Amplifier Data - 7.2 | EXPERIMENT NO. 5: POWER AMPLIFIERS AND FEEDBACK ANALYSIS | Analog Circuit Lab
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7.2 - Class B / Class AB Power Amplifier Data

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the primary feature of Class B amplifiers?

💡 Hint: Think about how many degrees a transistor operates in a cycle.

Question 2

Easy

Name one major drawback of Class B amplifiers.

💡 Hint: Recall the term that refers to distortion around zero crossings.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is a characteristic of Class B amplifiers?

  • Always operates in saturation
  • Uses both transistors for 180 degrees of the signal
  • Has a higher power dissipation than Class A

💡 Hint: Think about how each transistor operates during the input cycle.

Question 2

True or False: Class AB amplifiers eliminate crossover distortion completely.

  • True
  • False

💡 Hint: Consider the operational design of Class AB amplifiers.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

If a Class B amplifier has a maximum output power capability of 30W, calculate the minimum DC input power needed to reach this maximum output considering max theoretical efficiency.

💡 Hint: Remember to think about the efficiency percentage.

Question 2

Design a hypothetical Class AB amplifier circuit that operates between 5V and 15V with specifications for biasing and expected efficiency. Discuss how your choices would mitigate distortion.

💡 Hint: Think about how your design choices affect operation and performance expectations.

Challenge and get performance evaluation