Amplifier Block Diagram. In all practical amplifiers a number of stages are cascaded to amplify a weak signal to a sufficient level to operate the output device. It is so simple to build that i put it together on a stripboard in just a few hours.
A simplified block diagram with some additional information is given below. The amplifier can be single stage or multistage depending upon the need of the circuit. That is why in an electronic system a voltage amplifier circuit always precedes a power amplifier circuit as shown in block diagram of amplifier circuit figure 1.
Here we are taking an example of a loudspeaker.
In all practical amplifiers a number of stages are cascaded to amplify a weak signal to a sufficient level to operate the output device. Input stage intermediate stage output state. Main blocks of op amp block diagram. The amplifier circuit diagram shows a 2 5w 2 stereo amplifier.
