Module 3: DC Circuits

Lectures & Videos

Folder description

Module 3 contains four videos, which present:

Basic Concepts (3A)
Kirchoff's Laws (3B)
Nodal Loop Analysis (3C)
Thevenin Equivalent Circuits (3D)

Click the Lectures & Videos link above to access the videos.

Technical

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Overview SummaryObjectives

Cell description

Summary

In this module, we will review DC circuit analysis using Kirchhoff's current and voltage laws. This discussion will include dependent sources that will be useful later in electronic circuits. It will also form the basis for AC analysis and determination of DC and quiescent point bias of transistor circuits.

This module includes four parts. The first presents fundamental concepts sources, sign conventions and power dissipation; the second presents Kirchhoff's Laws:’ the third presents basic circuit analysis techniques using loop and nodal, analysis; and the fourth presents equivalent circuit analysis.

Objectives

By the end of this module, you will be able to:

Apply Kirchhoff's current law and voltage law to solve basic circuits.
Analyze single loop and multiple loop circuits to determine node voltages and branch currents.
Use nodal analysis to calculate the node voltages and then determine branch currents.
Derive and apply Thevenin and Norton equivalent circuits to DC circuits.

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Learning Guide

Cell description

Begin this module by reading the chapters listed for the textbook. After you complete the assigned reading, view the module content and prepare to participate in the online discussion. While viewing the module content, you may be asked to pause and do some solutions on your own. The discussion questions can be found in the Discussion section below. Complete this module by submitting the module assignments. Please post any questions to the Q & A section of the Discussion Board.

Each week, one or more online office hour(s) will be held to help answer questions and/or elaborate on the materials. The hours for the online office hour will be posted on Blackboard and a link will be provided to connect you to the website for each office hour.

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Readings

Cell description

O'Malley, J. (2011). Schaum's outline of basic circuit analysis (2nd Edition). Columbus, OH: McGraw-Hill.

The following chapters are related to the module video presentation indicated.

Module 3A: Chapter 1
Module 3B: Chapter 2
Module 3C: Chapter 4
Module 3D: Chapter 5

Note: The text has many solved problems that are worth your review.

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Module 3 Discussion

Cell description

Click the Module 3 Discussion link above to access and participate in the discussion forum by responding to the prompts below. Please choose and discuss at least two questions from the options below.

Question 1 What methods or techniques do you find useful for keeping track of signs in current flow and voltage differences?

Question 2 Some texts (such as the one used in this course) describe a loop method and a “mesh” method. What is the difference between these two methods (if any)?

Question 3 Why will nodal and loop analysis always yield the same results in a circuit analysis?

Question 4 You have a circuit composed of two voltage sources and resistors. To determine the current in any resistor, you could calculate the current due to one of the sources and add it to the current produced by the other source. Why is this true?

Question 5 The Thevenin equivalent circuit can be determined by measuring the open circuit voltage and the short circuit current. If you could only measure the voltage and with several values of resistors, how would you proceed?

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Module 3 Assignment

Cell description

This assignment has two parts, as explained below. Submit your solutions to both parts as a single PDF file by including the Module 3 (Part 1) Assignment link above and the problems listed in Part 2, using the following format: LASTNAME_HW3.PDF.

Part 1 Download the attached PDF which contains problems related to the first lecture presentation, 3A: Basic Concepts.

Part 2 For the remaining parts, the assigned problems from the text are 3.63, 3.66, 3.67, 4.37, 4.40, 5.37, 5.46, 5.47.

Technical

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