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Electric Circuit Analysis
SummaryA network, in the context of electronics, is a collection of interconnected components. Electric Circuit analysis is the process of finding the voltages across, and the currents through, every component in the network. There are many different techniques for calculating these values. However, for the most part, the applied technique assumes that the components of the network are all linear. The methods described in this article are only applicable to linear network analysis, except where explicitly stated.
Definitions
Course objectives:
To familiarize the basic laws, theorems and the methods of analyzing electrical circuits.
To explain the concept of coupling in electric circuits and resonance.
To familiarize the analysis of three-phase circuits
To analyze the transient response of circuits with dc and sinusoidal ac input.
To impart basic knowledge of network analysis using Laplace transforms.
Course outcomes:
At the end of the course the student will be able to:
Apply knowledge of mathematics, science, and engineering to the analysis and design of electrical circuits.
Identify, formulate, and solve engineering problems in the area circuits and systems.
Analyze the solution and infer the authenticity of it.
Text/Reference Books
1. Engineering Circuit Analysis William H Hayt et al Mc Graw Hill 8th Edition,2014
2. Engineering Circuit Analysis J David Irwin et al Wiley India 10th Edition,2014
3.Fundamentals of Electric Circuits Charles K Alexander Matthew N O Sadiku Mc Graw Hill 5th Edition,2013
4.Network Analysis M.E. Vanvalkenburg Pearson 3rd Edition,2014
5.Electric Circuits Mahmood Nahvi Mc Graw Hill 5th Edition,2009
6.Introduction to Electric Circuits Richard C Dorf and James A Svoboda Wiley 9th Edition,2015
7.Circuit Analysis; Theory and Practice Allan H Robbins Wilhelm C Miller Cengage 5th Edition,2013
Some Inspirational Images of REAL LIFE ELECTRICAL NETWORKS
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Hand Written E-Notes
Hand Written E-Notes
click on beside links for download as well as view
Here you can view and also download my E-notes written by my own words, I am sure you never have seen this type of notes anywhere else.it was very very clear to understand and also helps to score good marks in GATE, PSU, IES, etc Exams.
Chapter Wise Notes
Module No
Module-1
Module-2
Module-3
Module-4
Module-5
Topic
Basic Concepts: Active and passive elements, Concept of ideal and practical sources. Magnetically coupled circuits. Source transformation and Source shifting, Concept of Super Mesh and Supernode analysis. Analysis of networks by (i) Network reduction method including star-delta transformation, (ii) Mesh and Node voltage methods for ac and dc circuits with independent and dependent sources. Equilibrium equations using KCL and KVL, Duality.
Resonant Circuits: Analysis of simple series RLC and parallel RLC circuits under resonances. Resonant frequency, Bandwidth, and Quality factor at resonance. Practical RL-RC circuits.
Network Theorems: Analysis of networks, with and without dependent ac and dc sources by Thevenin’s and Norton’s theorems. Analysis of ac and dc circuits for maximum power transfer to resistive and complex loads. Application of Millman’s theorem and Super Position theorem to multisource networks. Reciprocity theorem and its application.
Transient Analysis: Review of ordinary linear nonhomogeneous first and second-order differential equations with constant coefficients. Transient analysis of ac and dc circuits by classical method. Transient analysis of dc and ac circuits. Behavior of circuit elements under switching action (t=0 & t=infinity) Evaluation of initial conditions.
Laplace Transformation:Laplace transformation (LT), LT of Impulse, Step, Ramp, Sinusoidal signals and shifted functions. Waveform synthesis. Initial and Final value theorems.Laplace Transform of network and time-domain solution for RL, RC and RLC networks for ac and dc excitations.
Unbalanced Three-phase systems:
Analysis of three-phase systems, calculation of real and reactive powers.
Two Port networks: Definition, Open circuit impedance, Short circuit admittance, and Transmission parameters and their evaluation for simple circuits. Network functions of one port and two port networks, properties of poles and zeros of network functions.
Complex Wave analysis:
Analysis of simple circuits with non-sinusoidal excitation.
PDF Notes
PPT
First 3 Theorems
Second 3 Theorems
OLD VTU SYLLABUS
Unit No
Unit 1
Unit 2
Unit 3
Unit 4
Unit 5
Unit 6
Unit 7
Unit 8
Topic
Basic Concepts:
Basic definitions. Practical sources, Source transformations, Network reduction using Star-Delta transformation, Loop and node analysis with linearly dependent and independent sources for DC and AC networks, Concepts of super node and super mesh.
Network Topology:
Graph of a network, Concept of tree and co-tree, incidence matrix, tie-set and cut-set schedules, Formulation of equilibrium equations in matrix form, solution of resistive networks, the principle of duality.
Network Theorems – 1:
Superposition, Reciprocity and Millman’s theorems
Network Theorems - II:
Thevenin’s and Norton’s theorems, Maximum Power transfer theorem
Resonant Circuits:
PDF Notes
PPT
Series and parallel resonance, frequency-response of series and parallel circuits, Q factor, Bandwidth
Transient behavior and initial conditions:
Behavior of circuit elements under switching condition and their representation, evaluation of initial and final conditions in RL, RC, and RLC circuits for AC and DC excitation.
Laplace Transformation & Applications:
Solution of networks, step, ramp and impulse responses, waveform Synthesis
Two-port network parameters:
Definition of z, y, h and transmission parameters, modeling with these parameters, relationship between parameters sets
For More Problems and solutions just follow and download the below notes
(These notes are BEST for VTU Norms)
Unit1
Unit2
Unit3&4
Unit5
Unit6
Unit7
Unit8
Basic Concepts:
Basic definitions. Practical sources, Source transformations,
Network reduction using Star– Deltatransformation, Loop and node
analysis with linearly dependent and independent sources for DC
and AC networks, Concepts of super node and super mesh.
Network Topology:
Graph of a network, Concept of tree and co-tree, incidence matrix,
tie-set and cut-set schedules, Formulation of equilibrium equations
in matrix form, solution of resistive networks, the principle of duality.
Network Theorems – 1:
Superposition, Reciprocity and Millman’s theorems
Network Theorems - II:
Thevenin’s and Norton’s theorems, Maximum Power transfer theorem
Resonant Circuits:
Series and parallel resonance, frequency-response of series and parallel circuits, Q factor, Bandwidth
Transient behavior and initial conditions:
The behavior of circuit elements under switching condition and their representation, evaluation of initial and final conditions in RL, RC and RLC circuits for AC and DC excitation.
Laplace Transformation & Applications:
Solution of networks, step, ramp and impulse responses, waveform Synthesis
Two-port network parameters:
Definition of z, y, h and transmission parameters, modeling with these parameters, relationship between parameters sets
Virtual Labs and Corresponding Links
Virtual Labs and Corresponding Links
1.IIT Kharagpur
1.IIT Kharagpur
List of experiments
Experiments developed
A. Basic Electrical Technology Laboratory (For UG students of all disciplines)
B. Signals and Networks Laboratory (For UG students of EE, EC, CSE and IN)
2.IIT Bombay (Network Analysis Lab)
2.IIT Bombay (Network Analysis Lab)
Verification of Superposition Theorem
Verification of Thevenin's Theorem
Verification of Maximum Power Transfer Theorem
Verification of Reciprocity Theorem
Study of Step Response of R-L Network
Study of Step Response of R-C Network
Study of Time Response of R-L-C Network
Verification of Two Port Network
3.Amrita Vishwa Vidyapeetham
3.Amrita Vishwa Vidyapeetham
Electric Circuits Virtual Lab (Pilot)
An electric circuit is composed of individual electrical components such as resistors, inductors, capacitors etc to trace the current that flows through it. The combination of electrical components can perform various simple and compound electrical operations.
The parallel RC circuit is generally of less interest than the series circuit. This is largely because the output voltage Voutis equal to the input voltage Vin as a result, this circuit does not act as a filter on the input signal unless fed by a current
An LC circuit is a resonant circuit or tuned circuit that can store electrical energy vibrating at its resonant frequency. In parallel LC circuit, coil (L) and capacitor (C) are connected in parallel with an AC power supply. A parallel resonant circuit pr
In electrical circuit theory, Thévenin's theorem for linear electrical networks states that any combination of voltage sources, current sources and resistors with two terminals is electrically equivalent to a single voltage source V and a single ser
A Resistor-Inductor (RLcircuit) or RL filter or RL network, is one of the simplest analogue infinite impulse response electronic filters.A series resistance R and self-inductance L is driven by an input voltage.
Norton's theorem for electrical networks states that any collection of voltage sources, current sources, and resistors with two terminals is electrically equivalent to an ideal current source, I, in parallel with a single resistor, R. For single-freq
Series LCR Circuits
Kirchhoff's circuit laws are two equalities that deal with the conservation of charge and energy in electrical circuits, and were first described in 1845 by Gustav Kirchhoff.
These equations show that a series RC circuit has a time constant, usually denoted τ = RC being the time it takes the voltage across the component to either rise (across C) or fall (across R) to within 1 / e of its final value.
Here R, L, and C are in series in an ac circuit. Inductive reactance magnitude () increases as frequency increases while capacitive reactance magnitude () decreases with the increase in frequency. A series resonant circuit provides voltage magnification.
A parallel RLC circuit is an example of a band-stop circuit response that can be used as a filter to block frequencies at the resonance frequency but allow others to pass.
The parallel RL circuit is generally of less interest than the series circuit unless fed by a current source. This is largely because the output voltage Vout is equal to the input voltage Vin— as a result, this circuit does not act as a filter for a voltage
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