Devices: BJT Voltage-divider Biasing

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This course has been discontinued

This 2-hour interactive online course teaches how to deal with the transistor using Circuit Analysis as the major tool. Those who are content to use the formulas that are developed can use them and will learn to perform the required circuit manipulations to understand Voltage-divider Biasing. Those who so desire can study the development of the formulas and gain the insight that comes with the manipulation of the algebraic representation of the circuits. All of the formulas used are developed in a section of the course called “Equation Developments”. Rather than clutter up the mainstream flow of study with the development details, these developments are placed at the end of the work and referred to within the body of the work.

Those who are not interested in the mathematics of the situation can ignore the references to the development of the equations and just use them. The development of the equations requires a more intimate knowledge of and interest in the algebraic manipulations than is required to use the equations in the analysis of a transistor circuit.

Objectives

Course Objectives

After completing this course, you will:

Understand the importance of transistor stability in circuit design
Know how stability is affected by temperature, manufacturing tolerances, supply voltage changes, and transistor beta
Be able to analyze a transistor circuit for stability
Be familiar with the relationship between the operation of a transistor and its cutoff voltage and saturation current
Understand the value of and know how to use a load line to help determine the operating current of a transistor
Understand how to find the transistor dc currents and voltages in circuits using voltage-divider bias

This course includes a multiple-choice quiz after each section to test your understanding of the material.

Part of a Series

The course presented here is a part of a series of courses on the subject of Transistors, Diodes and Op Amps. This course assumes that the user has the knowledge presented in the previous courses in the series, or has obtained sufficient background elsewhere. It is also assumed that the user has a good working knowledge of circuit theory, including Ohm’s Law, Kirchhoff’s Laws, Thevenin’s Theorem, and Norton’s Theorem. This background can be obtained from the appropriate parts of the course titled “Circuit Analysis: AC”, also available from RedVector.com. For those who just need to brush up on circuit theory, the course titled “Circuit Analysis Review” is suggested.

There are generally two ways to use this series: A user may start at the beginning and work through the entire series, or he may simply choose parts of the series to either refresh his knowledge or to selectively obtain new knowledge.

Series Outline - Devices Series

Circuit Analysis Review (1 hour)

Transistors

Bipolar Transistors - BJT (1 hour)
BJT Transistor Analysis (1 hour)
BJT Voltage-divider Bias (2 hours)
BJT Emitter and Collector Feedback Bias (2 hours)
BJT Two Supply Emitter and Upside-down Bias (2 hours)
BJT Transistor Modeling (1 hour)
BJT Voltage Amplifiers (1 hour)
BJT Power Amplifiers (1 hour)
Power Amplifier Circuits (1 hour)
Power Regulation (1 hour)
Field Effect Transistors (1 hour)
Field Effect Amplifiers (1 hour)
Frequency Response (1 hour)

Diodes

TBD

OpAmps

TBD