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47. Common Collector and Common Drain Amplifiers (Contd.): Numerical Examples (Part A)

47. Common Collector and Common Drain Amplifiers (Contd.): Numerical Examples (Part A)

The chapter focuses on the common collector and common drain amplifiers, providing insights into their numerical examples and design guidelines. Key performance parameters such as voltage gain, impedance, and capacitance are discussed alongside intermediate steps for analyzing these circuits. It emphasizes the calculation of operating points, small signal parameters, and bandwidth considerations for various configurations.

Sections

Analog Electronic Circuits

This section covers numerical examples and design guidelines for common collector and common drain amplifiers, focusing on voltage gain, input and output impedance, and the effects of parasitic components.

47.1 Section Overview

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47.1.1 Lecture – 47

This section delves into common collector and common drain amplifiers, focusing on numerical examples and design guidelines.

47.1.2 Common Collector And Common Drain Amplifiers (Contd.): Numerical Examples

This section focuses on numerical examples and design guidelines for common collector and common drain amplifiers, building on prior discussions about voltage gain and circuit impedance.

Outline of Today’s Presentation

Today's presentation focuses on numerical examples and design guidelines for common collector and common drain amplifiers.

47.2 Section Overview

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47.2.1 Focus on numerical examples and design guidelines

This section covers numerical examples and design guidelines related to common collector and common drain amplifiers, focusing on ideal conditions and parasitic influences.

Common Collector Amplifier Example

This section discusses the common collector amplifier, focusing on its characteristics, numerical examples on voltage gain, input and output impedance, and design guidelines.

47.3 Section Overview

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47.3.1 Initial Conditions and Parameter Definitions

This section discusses the initial conditions and definitions of parameters for common collector and common drain amplifiers, highlighting their voltage gain, input/output impedances, and bias circuits.

47.3.2 Operating Point Analysis

The section on Operating Point Analysis delves into the analysis of common collector and common drain amplifiers, emphasizing numerical examples and design guidelines.

47.3.3 Small Signal Parameters

This section explores the small signal parameters in common collector and common drain amplifiers, focusing on their mathematical expressions and significance in circuit design.

47.3.4 Voltage Gain Calculation

This section covers the calculation of voltage gain in common collector and common drain amplifiers through numerical examples and design guidelines.

47.3.5 Input Impedance

This section covers input impedance in common collector and common drain amplifiers, detailing numerical examples and design guidelines for analyzing these amplifiers.

47.3.6 Output Impedance Calculation

This section discusses the output impedance calculation for common collector and common drain amplifiers, focusing on various circuit parameters.

47.3.7 Upper Cutoff Frequency

This section discusses the upper cutoff frequency in common collector and common drain amplifiers, detailing its significance and calculation.

Next Circuit with Practical Source Resistance

This section covers the analysis of common collector and common drain amplifiers, focusing on numerical examples that include practical source resistance.

47.4 Section Overview

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47.4.1 Analysis with 100k Source Resistance

This section discusses the numerical analysis of Common Collector (CC) and Common Drain (CD) amplifiers, emphasizing the effects of source resistance on performance metrics.

47.4.2 Impact on Operating Point

This section discusses the impact of biasing on the operating point of common collector and common drain amplifiers through numerical examples.

47.4.3 Small Signal Parameters Consistency

This section discusses the analysis of small signal parameters in common collector and common drain amplifiers through numerical examples.

47.4.4 Output Impedance with Source Resistance

This section discusses the output impedance of common collector and common drain amplifiers considering the influence of source resistance on circuit performance.

47.4.5 Upper Cutoff Frequency Reevaluation

This section discusses the reevaluation of upper cutoff frequency in common collector and common drain amplifiers, focusing on numerical examples and design parameters.

Conclusion and Future Topics

This section encapsulates the overarching themes of the discussion on common collector and common drain amplifiers, emphasizing their design and operational characteristics and hints at future topics for exploration.

47.5 Section Overview

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Learning Objectives

  • Common collector and common drain amplifiers are analyzed using numerical examples.

  • Key performance metrics include voltage gain, input/output impedance, and frequency response.

  • Circuit parameters can be optimized for ideal performance considering various parasitics.

Key Concepts

Common Collector Amplifier

A configuration that provides high input impedance and low output impedance, often used for impedance matching.

Voltage Gain

The ratio of output voltage to input voltage in an amplifier, indicating how much the amplifier increases the signal amplitude.

Upper Cutoff Frequency

The frequency above which the gain of the amplifier begins to decrease, indicating the bandwidth limit of the amplifier.

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

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