Voltage Amplifier Block Diagram. When you are forced to work with a set amount of voltage these amplifiers are commonly used to increase the voltage and thus the amount of p. The tone control adjusts the balance of high and low frequencies.

Since voltage shunt is mentioned output is connected in parallel configuration because of voltage sampling and input is connected in parallel mixing. When the feedback circuit is allied in shunt through the o p as well as the input then both the o p impedance the i p impedance will be decreased. Figure 1 shows the block diagram of voltage shunt negative feedback.

Different power amplifier stages are shown in the block diagram below.

Tone and volume controls adjust the nature of the audio signal. The comparison between power and voltage amplifiers on the basis of coupling collector current output impedance input voltage output power etc is given below in the tabular form. Tone and volume controls adjust the nature of the audio signal. The tone control adjusts the balance of high and low frequencies.