The amplifier circuit shown in the figure is an example of
The amplifier circuit shown in the figure is an example of Correct Answer Voltage series feedback
Concept:
The different structures for direct observation of feedback are shown below:
At the output
[ alt="F1 Neha Madhuri 07.04.2021 D1" src="//storage.googleapis.com/tb-img/production/21/04/F1_Neha_Madhuri_07.04.2021_D1.png" style="width: 129px; height: 205px;">
If output and feedback are connected at the same point then that is taken as a shunt at the output.
[ alt="F1 Neha Madhuri 07.04.2021 D2" src="//storage.googleapis.com/tb-img/production/21/04/F1_Neha_Madhuri_07.04.2021_D2.png" style="width: 167px; height: 221px;">
If output and feedback are connected at different points then that is taken as a series at the output.
Analysis:
For the given circuit load and feedback are at different points. So, at the output, it is a series connection.
The output voltage is feedback to the input.
Conclusion:
The given feedback structure is Voltage series or Voltage - Voltage feedback.
EXtra concept:
At the input side
The structures below the brief idea about how the feedback and the inputs are connected. That is whether in series or parallel.
[ alt="F1 Neha Madhuri 07.04.2021 D3" src="//storage.googleapis.com/tb-img/production/21/04/F1_Neha_Madhuri_07.04.2021_D3.png" style="width: 290px; height: 196px;">
[ alt="F1 Neha Madhuri 07.04.2021 D4" src="//storage.googleapis.com/tb-img/production/21/04/F1_Neha_Madhuri_07.04.2021_D4.png" style="width: 107px; height: 201px;">
The above structures show the different combinations at the input.
