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Why are Class C amplifiers not suitable for DSB or SSB applications?
Trying to feed an SSB (or AM) signal to the gate or grid of a Class C amplifier will only produce an output on SSB peaks, which severely distorts the signal. And at the same time, out-of-band products (“splatter”) is produced.
Which amplifier has 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.
What is non-linear distortion in power amplifier?
Non-linear distortions occur when an amplifier fails to reproduce the output waveform as the exact amplified replica of the input waveform. In such cases, the non-linearity of the amplifier results in distortions in the amplitude, frequency, and phase of the output waveform.
Can a Class C amplifier distort an AM signal?
Keeping in mind that a 100 % modulated AM signal has voltage levels at zero like this : A class C amplifier indeed distorts AM and causes widespread splatter just as it does for SSB signals.
Why are Class A, B and AB amplifiers called linear amplifiers?
The class A, B and AB amplifiers are called as linear amplifiers because the output signal amplitude and phase are linearly related to the input signal amplitude and phase. When the collector current flows for less than half cycle of the input signal, the power amplifier is known as class C power amplifier.
Why does a transistor amplify an AM signal without noticeable distortion?
Can someone tell me why exactly a transistor non-linear power amplifier will amplify an AM signal without noticeable distortion, but will distort an SSB signal, giving the familiar scratchy sound where low amplitude audio is broken up and choppy. Keeping in mind that a 100 % modulated AM signal has voltage levels at zero like this :
What are the output characteristics of a Class C power amplifier?
Input and output waveforms of a typical Class C power amplifier is shown in the figure below. From the above figure it is clear that more than half of the input signal is missing in the output and the output is in the form of some sort of a pulse. Output characteristics of Class C power amplifier.