Current Series Feedback Amplifier Circuit Diagram. The feedback circuit connected in series for the output and parallel to the input signal is known as a current shunt feedback amplifier. The gain of the amplifier is the ratio of output voltage v o to the input voltage v i.
From the above figure the gain of the amplifier is represented as a. The resistance in series to the input indicates the effective impedance created by the amplifying circuitry. Gm iout vin.
The concept of feedback amplifier can be understood from the following figure.
They are the amplifier and the feedback circuit. The feedback circuit connected in series for the output and parallel to the input signal is known as a current shunt feedback amplifier. The feedback circuit usually consists of resistors. Gm iout vin.