The class B push-pull circuit can deliver 100 W of a.c. output power. What should be the minimum power rating of each transistor ?
Correct answer: A. 20 W
- A. 20 W
- B. 40 W
- C. 10 W
- D. 80 W
Explanation
At the worst-case dissipation point in a Class B push-pull stage, each transistor dissipates about 0.2 times the maximum a.c. output power. Thus each device needs a rating of about 0.2 × 100 = 20 W.
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