88. Numerical examples on current mirror and its applications (Part-C) - Analog Electronic Circuits

Sections

25 sections

About this chapter

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.

Learning objectives

Current mirrors are critical for biasing in amplifier circuits.
The output resistance of amplifiers using current mirrors is crucial for determining voltage gain.
Precision in transistor characteristics is vital for minimizing output voltage variations in practical applications.

Key concepts

Current Mirror

A current mirror is a circuit configuration that copies a current through one active device to another, maintaining constant current regardless of load conditions.

Voltage Gain

Voltage gain is defined as the ratio of output voltage to input voltage in an amplifier, indicative of the amplifier's ability to increase voltage.

Early Voltage

Early voltage is a parameter used to represent the output resistance of a BJT in active mode, affecting the current gain and output characteristics of amplifiers.

Chapter exercises

2 questions

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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