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Definition of "Class A Amplifier Operation" |
The type of operation in which the amplifier is biased so that variations in input signal polarities occur within the limits of cutoff and saturation. An amplifier operated in the linear region so the output is not clipped or cut-off. A linear amplifier that uses 100 percent of the input signal, with current flowing 100 percent of the time. The class A amp produces an output that is an amplified version of the input signal and has a 360 degrees [in-phase] relationship with the input signal. A Class A amplifier may output a distorted signal if a large amplitude signal pushes the transistor into the non-linear region of its characteristics. |
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