Diagram Of Voltage Series Feedback Amplifier. Is developed by the feedback network and then applied in series with the source signal. Consider the feedback amplifier illustrated in fig.

Similarly audio amplifiers are used to amplify the strength of speech signals and makes it more audible by amplifying it and put it through a speaker. In negative feedback the amplifier introduces a phase shift of 180 o into the circuit while the feedback network is so designed that it produces no phase shift or zero phase shift. In voltage series feedback the input impedance of the amplifier is increased and the output impedance is decreased.

Negative feedback in an amplifier is the method of feeding a portion of the amplified output to the input but in opposite phase.

Since voltage shunt is mentioned output is connected in parallel configuration because of voltage sampling and input is connected in parallel mixing. This disadvantage of the negative feedback is that the voltage gain is decreased. Negative feedback in an amplifier is the method of feeding a portion of the amplified output to the input but in opposite phase. Voltage shunt negative feedback.