Question
Download Solution PDFWhat is the minimum power rating required for a transistor used in class A amplifier with a single transistor if the amplifier delivers 50 W to a transformer-coupled load? Assume that the transformer is ideal?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
- The maximum efficiency of a class A amplifier is 50%
- The maximum efficiency of a class B amplifier is 78.5%
- The maximum efficiency of a class C amplifier is 90%.
Application:
Efficiency = ouput/input
The maximum efficiency = 50% = 0.5
Output = 50 W
Minimum input required = Output/maximum efficiency
= 50/0.5 = 100 W
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