Amplifier

A circuit or element that provides gain.

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.

Class AB Amplifier Operation

The type of operation in which the amplifier is biased so that collector current is cut off for a portion of the alternation of the input signal.

Class B Amplifier Operation

The type of operation in which the amplifier is biased so that collector current is cut off for one-half of the input signal.

Class C Amplifier Operation

The type of operation in which the amplifier is biased so that collector current is cut off for more than one-half of the input signal.


Quiescent Operating Point

The zero-signal voltage and current values in a circuit or amplifier.


See also: Amplification, Amplification Factor, Audio Amplifier, Blocking, Buffer Amplifier, Class A Amplifier Operation, Class AB Amplifier Operation, Class B Amplifier Operation, Class C Amplifier Operation, Class D Amplifier Operation, Degeneration, Direct Current Amplifier, Instrumentation Amplifier, Noise Figure, Nondegenerative Parametric Amplifier, Operational Amplifier, Peaking Coil, Power Amplifier, Preamplifier, Push Pull Amplifier, Quiescent Operating Point, Reactance Amplifier, RF Amplifier, Video Amplifier, Voltage Amplifier, Wideband Amplifier.

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Subjects: Electronics


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