Negative feedback in amplifier _____________ans.
Question
Negative feedback in amplifier _____________ans.
Solution 1
Negative feedback in an amplifier stabilizes the gain, reduces distortion, increases bandwidth, and improves input and output impedance characteristics.
Here's a step-by-step explanation:
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Stabilizes Gain: Negative feedback helps to stabilize the gain of an amplifier by reducing the effects of temperature and device parameter variations.
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Reduces Distortion: It reduces the non-linear distortion by making the amplifier's gain linear over a wide range of input levels.
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Increases Bandwidth: Negative feedback also increases the bandwidth of the amplifier by reducing the gain at lower and higher frequencies.
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Improves Impedance: It improves the input and output impedance characteristics. Negative feedback increases the input impedance and decreases the output impedance, which is generally a desirable effect for amplifiers.
Solution 2
Negative feedback in an amplifier stabilizes the gain, reduces distortion, increases bandwidth, and improves input and output impedance characteristics.
Here's a step-by-step explanation:
-
Stabilizes Gain: Negative feedback helps to stabilize the gain of an amplifier by reducing the effect of parameter variations due to temperature or manufacturing inconsistencies.
-
Reduces Distortion: It reduces the non-linear distortion by making the amplifier gain linear over a wide range of input signal.
-
Increases Bandwidth: Negative feedback also increases the bandwidth of the amplifier by reducing the gain at lower and higher frequencies.
-
Improves Impedance: It improves the input and output impedance characteristics. Negative feedback increases the input impedance and decreases the output impedance, which is generally a desirable effect for amplifiers.
Solution 3
Negative feedback in an amplifier stabilizes the gain, reduces distortion, increases bandwidth, and improves input and output impedance characteristics.
Here's a step-by-step explanation:
-
Stabilizes Gain: Negative feedback helps to stabilize the gain of an amplifier by reducing the effect of parameter variations due to temperature or manufacturing inconsistencies.
-
Reduces Distortion: It reduces the non-linear distortion by making the amplifier's gain linear over a wide range of input levels.
-
Increases Bandwidth: Negative feedback also increases the bandwidth of the amplifier by reducing the gain at lower and higher frequencies, thus making the response more flat and wide.
-
Improves Impedance: It improves the input and output impedance characteristics. Negative feedback increases the input impedance and decreases the output impedance of the amplifier, which is generally a desirable effect for better power transfer and less signal distortion.
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