Question
Download Solution PDFThe transistor amplifier with 85% efficiency is likely to be
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe 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%.
Hence, The transistor amplifier with 85% efficiency is likely to be Class C.
Note:
|
Power Amplifier |
Conduction Angle |
Maximum Efficiency |
Figure of Merit |
|
Class A |
360° |
50% |
2 |
|
Class B |
180° |
78.5% |
0.4 |
|
Class AB |
180° - 360° |
50 – 78.5% |
0.4 – 2 |
|
Class C |
< 180° |
≥ 90° |
< 0.25 |
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