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92. Feedback system (Part-C)

92. Feedback system (Part-C)

The chapter focuses on the interaction between input and output resistance in feedback systems. It discusses various configurations and their impact on the overall resistance values, including how these resistances can be influenced by load conditions and feedback loops. Key mathematical relationships are derived to explain these connections in detail.

Sections

Feedback System Input Resistance

This section discusses the parameters influencing the input resistance of a feedback system, particularly emphasizing the role of load effects and resistances in parallel.

92.1 Section Overview

Start current section content and materials

92.1.1 Load Affected Transimpedance

This section discusses the concept of load affected transimpedance, detailing how load resistance influences input resistance in feedback systems.

92.1.2 Parallel Resistance Consideration

This section discusses the calculation of input and output resistance in feedback systems considering parallel resistances.

92.1.3 Input Resistance Correction

This section discusses the concept of input resistance in feedback systems, including how it is calculated and corrected.

Feedback System Output Resistance

This section discusses how to analyze the input resistance of a feedback system, emphasizing the significance of load-afflicted transimpedance.

92.2 Section Overview

Start current section content and materials

92.2.1 Introduction to Output Resistance Discussion

This section introduces concepts related to output resistance in feedback systems.

92.2.2 Conclusion and Next Steps

This section focuses on the calculation of input resistance in feedback systems and potential errors in resistance assessments.

Learning Objectives

  • Input resistance is affected by feedback configurations and load conditions.

  • Output resistance can also change due to different feedback mechanisms.

  • Understanding the relationship between input and output resistance is crucial for designing effective electronic circuits.

Key Concepts

Input Resistance

The resistance perceived by an input signal in a circuit, influenced by feedback and load impedance.

Output Resistance

The resistance seen from the output of a circuit, which can vary based on feedback design and input conditions.

Transimpedance

The relationship between the output voltage and input current in feedback systems, often manipulated to achieve desired gains.

Feedback

The process of returning a portion of the output to the input of a system to control its response.

Practice Exercises

Total Questions

2

Estimated Time

4 min

Passing Score

70%

Instructions

  • Read each question carefully
  • You can use hints if you need help
  • Complete all questions before submitting