All Prior Quiz Prep sheets, homework, lectures, and reading assignments. Don't forget that some problems similar to Exam #1 problems will be interspersed among the next several quizzes.
As always, you should be able to do all problems with either NPN or PNP transistors - know the difference!
1) Describe the basic distinguishing characteristics of Class A, B, and AB output stages.
2) What is deadband and crossover distortion?
3) What is Total Harmonic Distortion? How is it calculated?
4) What is Power Efficiency? How is it calculated?
5) Using the phrases "Good", "Moderate", and "Poor", fill in the following table: Note that here "Moderate" simply means somewhere between "Good" and "Poor".
Amplifier Class | Class A | Class B | Class AB |
Total Harmonic Distortion | |||
Power Efficiency |
6) How can crossover distortion be reduced in a Class B output stage?
7) Sketch the Power Efficiency as a function of output signal for a typical Class A output Stage.
8) Sketch the Power Efficiency as a function of output signal for a typical Class B output Stage.