# EE240 Circuits 1

## Announcements

• (Sep. 06) Welcome to EE 240 Circuits I.

## Course Overview

The course provides an introduction to circuit analysis. Topics covered include introduction to passive components (R, L, C), independent and controlled energy sources, lumped parameter models, conventions for describing networks, analysis and solution of first order and second order circuits, determination of initial conditions in these circuits and their transient and steady state responses.

• Lecture Schedule: Tuesday, Thursday 11:00 AM to 12:15 PM

• Tutorial Schedule: TBA

• Textbook:

• Network Analysis, 3rd edition, by M. E. Van Valkenburg, Pearson Education or PHI

• The Analysis and Design of Linear Circuits by R E Thomas, A J Rosa and G J Toussaint, John Wiley, 6th Edition, 2000

• Electric Circuits Fundamentals by S Franco, Oxford University Press, 2002

• Basic Engineering Circuit Analysis by J D Irwin and R M Nelms, Wiley, 9th Edition, 2008

• Office Hours and Contact Information

• Instructor (zubair.khalid@lums.edu.pk): Tuesday and Thursday, 5-6 pm

• TA Syed Saeed Rashid (22100071@lums.edu.pk): Office hours, TBA

• TA Fatima Naweed (23100042@lums.edu.pk): Office hours, TBA

• Assignments, 15 %

• Quizzes, 20 %

• Mid-Exam, 25 %

• Oral Examination, 10 %

• Final Exam, 30 %

## Lecture Notes and Exams

Lecture notes, exams and reading assignmnets will be posted here.

• 2021 Final Exam

• 2021 Mid Exam

## Assignments

 Assignment Due Date Solutions Assignment 01 27 Sep. Solutions Assignment 02 21 Oct. Solutions Assignment 03 TBA Solutions Assignment 04 TBA Solutions Assignment 05 13 Dec. Solutions

## Quizzes

 Quiz Solutions Quiz 01 Solutions Quiz 02 Solutions Quiz 03 Solutions Quiz 04 Solutions Quiz 05 Solutions

## Lecture Plan

• Week 01 (Notes)

• Course Introduction

• Fundamental concepts: Chrage, Current, Voltage, Power, Energy, Passive Sign Convention

• Review of fundamental concepts

• V,I ideal sources

• Passive Elements: Resistor, IV characteristics

• Week 02 (Notes)

• Passive Elements: Capacitor, capacitance, IV characteristics, Examples

• Week 03 (Notes 1) (Notes 2)

• Passive Elements: Inductor, induactance

• R,L,C summary

• Series, parallel connection

• Week 04 (Notes)

• Series, parallel connection of sources

• Practical models of R,L,C

• V,I practical sources

• Controlled Sources

• Mutual Inductance

• Dot Convention

• Graphical Representation

• Week 05, 06 (Notes)

• Circuit Analysis Overview

• Kirchhof's Current Law (KCL) for Nodal Analysis

• Kirchhof's Voltage Law (KVL) fo Loop Analysis

• Network Equations for mutually coupled circuits

• Matrix Formulation

• Examples

• Week 07 (Notes)

• Equivalent Networks Concept

• Source Transformation

• Moving Sources

• Superposition Principle

• Week 08

• Super Node (Notes)

• Super Loop

• Duality in Circuits (Notes)

• Week 09 (Notes)

• Thevenin's Theorem

• Norton's Theorem

• Examples

• Maximum Power Transfer Theorem

• Week 10 (Notes)

• First Order Circuits

• Solution of first order differential equation

• Series RC Circuit

• Series RL circuit

• Solving First Order Complicated Circuit with DC sources

• Problems on First Order Circuits

• Week 11 (Problems on Initial Conditions)

• Initial Conditions

• Problems on Initial Conditions (Chapter 5)

• Week 12, 13 (Notes and Problems)

• Second Order Circuits - Solution of Homogeneous Differential Equation

• Solution of Homogeneous 2nd order Differential Equation - Standard form formulation

• Series, Parallel RLC Circuit

• Higher order differential equations, time varying forcing function