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Analog Electronic Circuits - Vol 4
Explore and master the fundamentals of Analog Electronic Circuits - Vol 4
You've not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.Chapter 76
Differential Amplifier : Basic Structure and Principle of Operation (Contd.)
The chapter provides a comprehensive analysis of the differential amplifier's structure and operation, focusing on its basic principles using BJTs. Key aspects include the understanding of differential and common mode gains, along with modifications to enhance performance through alternative configurations. Insights into circuit analysis and application are also presented, with attention on small signal equivalents and their impact on differential amplification.
Chapter 77
Differential Amplifier : Analysis and Numerical Examples
The discussion focuses on the analysis of differential amplifiers, covering both small and large signal analysis. Key concepts include the operational modes, gain calculations, and practical implementations using BJT and MOSFET. Additionally, the chapter introduces various stimulus operating conditions and explains the input-output relationships in detail.
Chapter 78
Differential Amplifier : Analysis and Numerical Examples (Contd.)
The chapter covers the analysis of differential amplifiers, specifically focusing on their common mode and differential mode responses. It highlights the behavior of these amplifiers under various signal conditions, including small and large signal analyses. Emphasis is placed on understanding the role of DC operating points and the significance of common mode and differential gains in practical applications.
Chapter 79
Differential Amplifier : Analysis and Numerical Examples (Contd.)
The chapter provides a comprehensive analysis of differential amplifiers, particularly focusing on numerical examples involving BJTs and MOSFETs. It covers the key aspects including DC operating points, small signal parameters, differential mode gain, and common mode gain. Practical examples illustrate how performance can be optimized in differential amplifiers.
Chapter 80
Differential Amplifier : Analysis and Numerical Examples (Contd.)(Part B)
The chapter delves into the analysis and numerical examples of differential amplifiers, emphasizing the importance of DC voltage and common mode voltage for effective operation. Key concepts include differential and common mode gain along with an exploration of signal distortion in relation to the operating points of transistors. The chapter concludes by discussing the impact of input common mode voltage on amplifier performance.
Chapter 80
Differential Amplifier : Analysis and Numerical Examples (Contd.)(Part B)
The chapter explores the integration of MOSFETs and BJTs in differential amplifiers, focusing on concepts such as biasing, current control, and gain calculations. It highlights the advantages of using active components over passive elements to improve performance, specifically in suppressing common mode signals while maximizing differential gain. Through extensive numerical examples, the chapter elaborates on the impact of various circuit parameters and the operational characteristics of the amplifiers.
Chapter 81
Current mirror circuits (Part-A) - A
The chapter focuses on Current Mirror Circuits, emphasizing their role as vital components in biasing circuits and amplifiers. It elaborates on the operating principles, variations of current mirrors, and their significance in improving circuit performance and stability. By analyzing different architectures of current biasing elements, the chapter provides insights into optimizing output impedance and reliability in electronic circuit design.
Chapter 81
Current mirror circuits (Part-A) - B
The chapter explores the concept of current mirrors, focusing on how they can generate reference currents in electronic circuits. It discusses both the MOSFET and BJT versions of current mirrors and highlights their similarities. Additionally, the chapter addresses the characteristics of these circuits and sets the stage for further analytical discussions.
Chapter 82
Current mirror circuits (Part-B)
The chapter focuses on current mirror circuits, explaining both BJT and MOSFET versions and their output characteristics. It discusses the expressions for output current and resistance, highlighting the importance of maintaining transistors in saturation for optimal performance. Additionally, the chapter covers strategies for improving output resistance, including the use of cascode techniques to minimize dependency on voltage variations.
Chapter 82
Current mirror circuits (Part-B)
The chapter covers the principles and characteristics of current mirrors, emphasizing the importance of output impedance in amplifier circuits. It discusses various configurations of current mirrors and advancements like the Beta-helper circuit that enhance performance. Key aspects include the basic structure, current reference relationships, and the implications of non-ideality factors in BJT current mirrors.
Chapter 83
Usage of current mirror (Part-A)
The chapter focuses on the applications of current mirror circuits in analog electronic circuits, specifically within amplifiers such as common emitter, common source, and differential amplifiers. It discusses the small signal models for current mirrors using both BJT and MOSFET technologies, emphasizing how these circuits can be utilized to enhance signal processing capabilities by mirroring currents for improved performance. Key applications and analysis methods for these circuits are also presented.
Chapter 84
Usage of current mirror (Part-B)
The chapter discusses the application of current mirrors in various amplifier configurations, including Common Collector, Common Drain, and Differential Amplifiers. It elaborates on the current mirror's role in improving performance metrics such as common mode and differential mode gains, highlighting the underlying principles and equations that govern transistor behavior in these circuits.
Chapter 85
Usage of current mirror (Part-C)
The chapter discusses the implementation of current mirrors in differential amplifiers, particularly focusing on BJT configurations. It emphasizes the advantages of using current mirrors for setting bias currents and how these configurations impact both common mode and differential mode gains. The chapter also compares passive and active loads and explores the significance of the common mode rejection ratio.
Chapter 85
Usage of current mirror (Part-C)
The chapter explores the usage and advantages of current mirrors in electronic circuits, emphasizing their roles in amplifiers and biasing elements. It discusses the small signal model of current mirrors for both BJTs and MOSFETs, highlights their impact on the gain and mode rejection in amplifiers, and concludes with applications in differential amplifiers. The importance of current mirrors in enhancing performance parameters in various configurations is underscored throughout the text.
Chapter 86
Numerical examples on current mirror and its applications (Part-A)
This chapter focuses on numerical examples related to current mirrors, detailing both MOSFET and BJT configurations. It covers calculations involving simple and improved current mirror designs, showcasing their applications in amplifiers while demonstrating practical circuit analysis methods. Key aspects such as non-ideality factors due to finite beta and early voltage are thoroughly examined, emphasizing their impact on circuit performance.
Chapter 87
Numerical examples on current mirror and its applications (Part-B)
Numerical examples of current mirror circuits are presented with a focus on their application in MOSFET and BJT configurations. Key improvements, such as the introduction of a cascode transistor to enhance output resistance and minimize non-ideality factors, are emphasized. The chapter illustrates the calculations involved in determining voltages and currents in various configurations while maintaining the operational conditions for high output resistance.
Chapter 88
Numerical examples on current mirror and its applications (Part-C)
This chapter covers various numerical examples focusing on current mirrors and their applications in amplifiers, particularly common emitter amplifiers. It discusses the principles of biasing using current mirrors, the calculation of small signal gains, and the implications of early voltage. Additionally, it explores the performance of differential amplifiers utilizing current mirrors, emphasizing the importance of precision in current matching to maintain desired output voltages.
Chapter 89
Numerical examples on current mirror and its applications (Part-D)
The chapter focuses on numerical examples related to current mirrors and amplifiers, emphasizing their calculations and operational characteristics. Key concepts include differential mode gain, common mode gain, and the application of current mirrors in various amplifier configurations. Various numerical examples demonstrate the principles and calculations associated with these electronic circuits.
Chapter 90
Feedback system (Part-A)
The chapter focuses on the feedback systems within analog electronic circuits, explaining the fundamental concepts, types of feedback systems, and their configurations. It details the mechanics of feedback in amplifiers, including the derivation of transfer characteristics and feedback types, such as negative and positive feedback. Furthermore, it discusses the implications of feedback on system performance and stability.
Chapter 90
Feedback system (Part-A)
The chapter discusses the fundamental concepts of analog electronics, focusing on signal types, specifically voltage and current. It outlines the importance of matching signal characteristics in various configurations and provides examples of signal conversions in different blocks, such as transconductance and transimpedance. A critical aspect emphasized is ensuring the consistency of signal types across components for effective mixing and amplification.
Chapter 91
Feedback system (Part-B)
The chapter covers the configurations of feedback systems with a focus on voltage and current signals, samplers, and mixers. It explains the ideal conditions necessary to minimize loading effects and the significance of resistance values in feedback networks. Different naming conventions for feedback configurations are also introduced, emphasizing their impact on system behavior.
Chapter 92
Feedback system (Part-C)
The chapter explores negative feedback systems in electronic circuits, emphasizing their impact on input and output resistance. It discusses both ideal and practical scenarios of feedback configurations, including voltage and current amplifiers. Key insights include the desensitization factor and how feedback affects circuit performance.
Chapter 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.
Chapter 93
Feedback system (Part-D)
This chapter delves into the analysis of feedback systems in analog electronic circuits, focusing on the output resistance changes associated with various feedback configurations. Key sections cover voltage and current amplifiers, detailing how output resistance is influenced by different factors such as source resistance and feedback network characteristics. The importance of recognizing ideal versus non-ideal conditions is emphasized throughout the chapter to ensure accurate circuit analysis.
Chapter 94
Feedback system (Part-E)
The chapter provides a comprehensive overview of feedback systems in analog electronic circuits, focusing on the voltage gain, input resistance, output resistance, and output voltage of feedback systems. It contrasts ideal and non-ideal feedback situations through numerical examples, illustrating how different parameters like gain and resistance interact in these contexts. Through various calculations, it emphasizes the impact of feedback on circuit performance, particularly in enhancing input resistance and modifying output resistance.
Chapter 95
Effect of feedback on frequency response (Part-A)
This chapter covers the effect of feedback on the frequency response of amplifiers, focusing on how the location of poles changes in feedback systems, particularly in amplifiers with one or more poles. The discussion emphasizes the significance of low-frequency gain, feedback network characteristics, and how these affect system stability and performance. Various cases illustrate the interaction between amplifier poles and feedback networks, leading to new pole locations in the feedback system.
Chapter 96
Effect of feedback on frequency response (Part-B)
The chapter discusses the impact of feedback on the frequency response of electronic circuits, focusing on the behavior and location of poles in feedback systems. It explores the conditions under which poles can become dominant, complex, or conjugate pairs, influenced by various parameters in the circuit. The analysis encompasses multiple cases where different configurations of forward amplifier and feedback network affect the system's stability and response characteristics.
Chapter 97
Applications of feedback in amplifier circuits (Part-A)
Feedback configurations play a crucial role in the stability and performance of amplifiers, with various types including voltage sampling and series mixing. Understanding the characteristics and consequences of these configurations allows for optimal deployment in BJT and op-amp circuits. This chapter emphasizes the importance of selecting appropriate feedback networks to achieve desired circuit properties, including stabilization of gain and resistance.
Chapter 98
Applications of feedback in amplifier circuits (Part-B)
Feedback in amplifier circuits, specifically the common emitter amplifier, is crucial for stabilizing trans-impedance. By utilizing feedback networks, both input and output resistances can be optimized while preserving performance metrics such as voltage and current gain. Various configurations determine the effectiveness of feedback, leading to distinct operational characteristics within amplifier circuits.
Chapter 99
Applications of feedback in amplifier circuits (Part-C)
The chapter explores the applications of feedback in amplifier circuits, focusing on the effects of current-series feedback on amplifier performance. It presents the methodology for defining trans-conductance in feedback networks, the significance of bypass capacitors, and the impact of input and output resistance on circuit behavior. Through practical insights and examples, it underscores how feedback influences gains and resistances within amplifier circuits.