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The document discusses amplifier classes, focusing on Class A and Class C amplifiers. Class A amplifiers operate throughout the entire cycle, ensuring complete waveform amplification, while Class C amplifiers conduct for less than half of the input cycle, providing high efficiency but significant distortion. Class C amplifiers are primarily used in RF amplification where efficiency is prioritized over sound fidelity.
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- 11. As the Q-point is at the mid of the load line so during the whole cycle the amplifier remains in the operational mode and whole waveform is amplified.
- 17. Class C Amplifier A Class C amplifier is defined as an amplifier where the transistor conducts for less than half of the input cycle. Specifically: 1.It is biased so that the transistor operates in cutoff for most of the input cycle, except during a narrow portion near the peak of the input waveform. 2. Class C amplifiers are highly efficient but produce significant distortion and are typically used in applications where high efficiency is prioritized over fidelity, such as RF (radio frequency) amplification.