Power Amplifiers – 18

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18. Class D operation can achieve power efficiency of over ________.

(a) 90%
(b) 78.5%
(c) 50%
(d) 25%

Answer

Answer : (a)

Explanation

Explanation : No answer description available for this question. Let us discuss.

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Power Amplifiers - 61
555555555561. What is the maximum efficiency of a class B circuit? (a) 90% (b) 78.5% (c) 50% (d) 25%
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Power Amplifiers - 34
555555555534. In practice, the efficiency of a capacitively coupled class A amplifier is about ________%. (a) 25 (b) 40 (c) 70 (d) 10
Tags: power, amplifiers, efficiency, class, electronics, engineering
Power Amplifiers - 48
5555555555 48. Determine VB1. (a) 0 V (b) 0.7 V (c) 9.3 V (d) 10.7 V
Tags: power, amplifiers, electronics, engineering
Power Amplifiers - 77
555555555577. Which of the following is (are) power amplifiers? (a) Class A (b) Class B or AB (c) Class C or D (d) All of the above
Tags: class, power, amplifiers, electronics, engineering
Power Amplifiers - 62
555555555562. The maximum efficiency of a transformer-coupled class A amplifier is ________. (a) 25% (b) 50% (c) 78.5% (d) 63.6%
Tags: power, amplifiers, efficiency, class, electronics, engineering

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