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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.
Sections
This section discusses numerical examples of current mirrors using MOSFETs and BJTs, including their applications in amplifier circuits.
This section outlines the coverage of a presentation on numerical examples related to current mirrors and their applications in analog electronic circuits.
This section discusses the construction and analysis of a simple current mirror using MOSFETs, including numerical examples and practical considerations.
This section builds upon examples of current mirrors in analog electronic circuits, showcasing practical calculations and applications of both MOSFET and BJT based current mirrors.
This section delves into numerical examples and applications of current mirrors constructed using bipolar junction transistors (BJTs).
The section elaborates on numerical examples, calculations, and applications of current mirrors primarily using BJTs and MOSFETs.
This section explores the concept of improvised current mirrors, detailing numerical examples and applications using both MOSFET and BJT transistors.
Current mirrors are essential components in analog circuits, frequently used for biasing and establishing reference currents.
The operation of current mirrors can be analyzed using various approximations, accounting for non-ideality factors that arise in real-world circuits.
Practical design considerations, such as the choice between MOSFETs and BJTs, significantly affect the output current and circuit behavior.
Current Mirror
A current mirror is a circuit that copies (mirrors) the current flowing in one branch to another, maintaining a constant current regardless of load variations.
NonIdeality Factors
These factors arise from real-world effects like finite transistor beta and early voltage, which affect the accuracy of current mirroring.
BetaHelper
A configuration in which an additional transistor is used to minimize the impact of base current loss in current mirrors, improving accuracy.
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