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19. Linearization of non - linear circuit containing BJT (Contd.)
The chapter focuses on the linearization of non-linear circuits containing BJTs, detailing the process of creating small signal equivalent circuits. It emphasizes the significance of understanding key parameters like transconductance, output conductance, and base-emitter resistance within these circuits. The discussions illustrate how these concepts simplify the analysis and design of amplifiers, allowing engineers to operate in the linear region for optimal performance.
Sections
This section explores the concept of linearization in circuits containing BJTs, focusing on the small signal equivalent model and its parameters.
This section discusses the small signal equivalent circuit of Linearization of Non-Linear Circuits, highlighting the application of BJT in analog circuits.
The conclusion emphasizes the importance of linearizing non-linear circuits in analog electronics and highlights key parameters in small signal equivalent circuits.
Linearization of non-linear circuits is crucial for obtaining small signal equivalent circuits.
Key parameters in BJTs include transconductance, output conductance, and base-emitter resistance, which depend on the operating point.
The small signal equivalent circuit simplifies analysis and enhances the design of analog circuits.
Transconductance (g)
A parameter representing the relationship between the collector current and the base to emitter voltage, defined by the change in collector current with respect to the change in base-emitter voltage.
Small signal equivalent circuit
An equivalent model representing the linearized behavior of non-linear circuits under small signal conditions, allowing for simplified analysis.
Output conductance (g_o)
The change in collector current in response to a change in the collector-emitter voltage, often providing insight into the transistor's linearity.
Base to emitter resistance (r_π)
The resistance seen looking into the base-emitter junction of a BJT, which affects the input characteristics of the transistor.
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
1 more question available
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