What amplifier class of operation is the most inefficient but has the least distortion?

Class C amplifier
The Class C amplifier offers the highest efficiency, but has poor distortion qualities and generates many undesired harmonics. In Class C, the amplifier conduction angle is far less than 180⁰, and it is biased so it only turns on for large signal excursions.

What is the most efficient amplifier class?

Class C Amplifier
The Class C Amplifier design has the greatest efficiency but the poorest linearity of the classes of amplifiers mentioned here. The previous classes, A, B and AB are considered linear amplifiers, as the output signals amplitude and phase are linearly related to the input signals amplitude and phase.

Why are class A amplifiers inefficient?

Disadvantage of class-A amplifiers Inefficiency comes from the standing current, which must be roughly half the maximum output current, and a large part of the power supply voltage is present across the output device at low signal levels.

Which class of amplifier has more distortion?

Class C amplifiers give maximum distortion.

Which class of amplifier operates with least distortion?

Class A amplifier
Accordingly, the Class A amplifier provides a linear output with the lowest distortion, but it also has the lowest efficiency level.

Which amplifier class has highest linearity and lowest distortion?

1. Which of the following amplifier class have the highest linearity and lowest distortion? Explanation: Class A amplifier has the highest linearity and the lowest distortion. The amplifying element is always conducting and close to the linear portion of its transconductance curve.

What is Class G amplifier?

The Class G topology is a modification of another Class of amplifier (normally Class B or Class AB) to increase efficiency and reduce power dissipation. Class G takes advantage of the fact that musical and voice signals have a high crest factor with most of the signal content at lower amplitudes.

What is a Class C amplifier?

Class C power amplifier is a type of amplifier where the active element (transistor) conduct for less than one half cycle of the input signal. Less than one half cycle means the conduction angle is less than 180° and its typical value is 80° to 120°. Theoretical maximum efficiency of a Class C amplifier is around 90\%.

What is a Class H amp?

A Class H amplifier is similar to an AB amplifier except it is designed to use power from a low voltage rail during the time that the output signal is low, only drawing power from the higher voltage rail when needed.

Which class of amplifier has the least distortion?

Which of the following classes has lowest efficiency?

Detailed Solution. Class A amplifier has lowest efficiency and the efficiency of different amplifiers are given below.