Electric Circuit Theory (ECT) Course Content

Marks Distribution

Network Analysis of AC circuit & dependent sources

• Mesh Analysis
• Nodal Analysis
• Series & parallel resonance in RLC circuits
  1. Impedance and phase angle of series Resonant Circuit
  2. Voltage and current in series resonant circuit
  3. Band width of the RLC circuit
  4. High‐Q and Low‐Q circuits

Initial Conditions

• Characteristics of various network elements
• Initial value of derivatives
• Procedure for evaluating initial conditions
• Initial condition in the case of R‐L‐C network

Transient analysis in RLC circuit by direct solution

• Introduction
• First order differential equation
• Higher  order  homogeneous  and  non‐homogeneous  differential equations
• Particular integral by method of undetermined coefficients
• Response of R‐L circuit with
  1. DC excitation
  2. Exponential excitation
  3. Sinusoidal excitation
• Response of R‐C circuit with
  1. DC excitation
  2. Exponential excitation
  3. Sinusoidal excitation Response of series R‐L‐C circuit with
• DC excitation
• Exponential excitation
• Sinusoidal excitation

Response of parallel R‐L‐C circuit with DC excitation (Transient analysis in RLC circuit by Laplace Transform)

• Introduction
• The Laplace Transformation
• Important properties of Laplace transformation
• Use of Partial Fraction expansion in analysis using Laplace Transformations
• Heaviside’s partial fraction expansion theorem
• Response of R‐L circuit with
  1. DC excitation
  2. Exponential excitation
  3. Sinusoidal excitation
• Response of R‐C circuit with
  1. Exponential excitation
  2. Sinusoidal excitation
• Response of parallel R‐L‐C circuit with exponential excitation
• Transfer functions Poles and Zeros of Networks

Frequency Response of Network

• Introduction
• Magnitude and phase response
• Bode diagrams
• Band width of Series & parallelResonance circuits
• Basic  concept  of  filters, high pass, low pass, band pass and band stop filters

Fourier Series and transform

• Basic concept of Fourier series and analysis
• Evaluation  of  Fourier  coefficients  for  periodic  non‐sinusoidal waveforms in electric networks
• Introduction of Fourier transforms

Two‐port Parameter of Networks

• Definition of two‐port networks
• Short circuit admittance parameters
• Open circuits impedance parameters
• Transmission Short circuit admittance parameters
• Hybrid parameters
• Relationship and transformations between sets of parameters
• Application to filters
• Applications to transmission lines
• Interconnection of two‐port network (Cascade, series, parallel)

Practical’s

• Resonance in RLC series circuit measurement of  resonant frequency
• Transient Response in first Order System passive circuits-measure  step  and  impulse  response  of  RL  and  RC  circuit  using oscilloscope relate time response to analytical transfer functions calculations
• Transient Response in Second Order System passive circuits measure    step  and  impulse  response  of  RLC  series  and  parallel circuits using oscilloscope relate  time    response  to  transfer  functions  and  pole‐zero configuration
• Frequency Response of first  order passive circuits measure  amplitude  and  phase  response  and  plot  bode  diagrams for RL, RC and RLC circuits relate  Bode  diagrams  to  transfer  functions  and  pole  zero configuration circuit
• Frequency Response of second order passive circuits measure  amplitude  and  phase  response  and  plot  bode  diagrams for RL, RC and RLC circuits relate  Bode  diagrams  to  transfer  functions  and  pole  zero configuration circuit