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Which amplifier whose output current flows for the entire cycle?

Which amplifier whose output current flows for the entire cycle? Correct Answer class A

  • For class A the angle of the excursion is 360° and the current flows through the active device for the whole of the input cycle.
  • For class B the angle of the excursion is 180° and the current flows through the active device for half of the input cycle.
  • For class AB the angle of the excursion is >180° and < 360° and current flows through the active device for more than half of the input cycle.
  • For class C the angle of the excursion is less than 180° and the current flows through the active device for less than half of the input cycle.

 

The companion of different Amplifier is as shown:

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Class A

Class B

Class C

Conduction angle

360°

180°

<180°

Efficiency

50%

78.5%

100°

Linearity

Highest among all

Lower than class -A

Poor Linearity

Distortion

Low

Small to moderate

Highest

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