NPTEL : NOC:Basic Electrical Circuits (Electronics and Communication Engineering)

Co-ordinators : Dr. Nagendra Krishnapura


Lecture 1 - Preliminaries

Lecture 2 - Current

Lecture 3 - Voltage

Lecture 4 - Electrical elements and circuits

Lecture 5 - Kirchhoff's current law (KCL)

Lecture 6 - Kirchhoff's Voltage law (KVL)

Lecture 7 - Voltage Source

Lecture 8 - Current Source

Lecture 9 - Resistor

Lecture 10 - Capacitor

Lecture 11 - Inductor

Lecture 12 - Mutual Inductor

Lecture 13 - Linearity of Elements

Lecture 14 - Solutions to the assignment on units 1 and 2

Lecture 15 - Series connection-Voltage sources in series

Lecture 16 - Series connection of R, L, C, current source

Lecture 17 - Elements in parallel

Lecture 18 - Current source in series with an element; Voltage source in parallel with an element

Lecture 19 - Extreme cases: Open and short circuits

Lecture 20 - Summary

Lecture 21 - Voltage controlled voltage source (VCVS)

Lecture 22 - Voltage controlled current source (VCCS)

Lecture 23 - Current controlled voltage source (CCVS)

Lecture 24 - Current controlled current source (CCCS)

Lecture 25 - Realizing a resistance using a VCCS or CCCS

Lecture 26 - Scaling an element's value using controlled sources

Lecture 27 - Example calculation

Lecture 28 - Solution to the assignment on units 3 and 4

Lecture 29 - Power and energy absorbed by electrical elements

Lecture 30 - Power and energy in a resistor

Lecture 31 - Power and energy in a capacitor

Lecture 32 - Power and energy in an inductor

Lecture 33 - Power and energy in a voltage source

Lecture 34 - Power and energy in a current source

Lecture 35 - Goals of circuit analysis

Lecture 36 - Number of independent KCL equations

Lecture 37 - Number of independent KVL equations and branch relationships

Lecture 38 - Analysis of circuits with a single independent source

Lecture 39 - Analysis of circuits with multiple independent sources using superposition

Lecture 40 - Superposition: Example

Lecture 41 - Solution to the assignment on units 5 and 6

Lecture 42 - What is nodal analysis

Lecture 43 - Setting up nodal analysis equations

Lecture 44 - Structure of the conductance matrix

Lecture 45 - How elements appear in the nodal analysis formulation

Lecture 46 - Completely solving the circuit starting from nodal analysis

Lecture 47 - Nodal analysis example

Lecture 48 - Matrix inversion basics

Lecture 49 - Nodal analysis with independent voltage sources

Lecture 50 - Supernode for nodal analysis with independent voltage sources

Lecture 51 - Nodal analysis with VCCS

Lecture 52 - Nodal analysis with VCVS

Lecture 53 - Nodal analysis with CCVS

Lecture 54 - Nodal analysis with CCCS

Lecture 55 - Nodal analysis summary

Lecture 56 - Solution to the assignment on units 7 and 8

Lecture 57 - Planar circuits

Lecture 58 - Mesh currents and their relationship to branch currents

Lecture 59 - Mesh analysis

Lecture 60 - Mesh analysis with independent current sources-Supermesh

Lecture 61 - Mesh analysis with current controlled voltage sources

Lecture 62 - Mesh analysis with current controlled current sources

Lecture 63 - Mesh analysis using voltage controlled sources

Lecture 64 - Nodal analysis versus Mesh analysis

Lecture 65 - Superposition theorem

Lecture 66 - Pushing a voltage source through a node

Lecture 67 - Splitting a current source

Lecture 68 - Substitution theorem: Current source

Lecture 69 - Substitution theorem: Voltage source

Lecture 70 - Substituting a voltage or current source with a resistor

Lecture 71 - Solutions

Lecture 72 - Extensions to Superposition and Substitution theorem

Lecture 73 - Thevenin's theorem

Lecture 74 - Worked out example: Thevenin's theorem

Lecture 75 - Norton's theorem

Lecture 76 - Worked out example: Norton's theorem

Lecture 77 - Maximum power transfer theorem

Lecture 78 - Preliminaries.

Lecture 79 - Two port parameters

Lecture 80 - y parameters

Lecture 81 - y parameters: Examples

Lecture 82 - Solutions.

Lecture 83 - z parameters

Lecture 84 - z parameters: Examples

Lecture 85 - h parameters

Lecture 86 - h parameters: Examples

Lecture 87 - g parameters

Lecture 88 - g parameters: Examples

Lecture 89 - Calculations with a two-port element

Lecture 90 - Calculations with a two-port element.

Lecture 91 - Degenerate cases

Lecture 92 - Relationships between different two-port parameters

Lecture 93 - Equivalent circuit representation for two ports

Lecture 94 - Reciprocity

Lecture 95 - Proof of reciprocity of resistive two-ports

Lecture 96 - Proof for 4-terminal two-ports

Lecture 97 - Reciprocity in terms of different two-port parameters

Lecture 98 - Reciprocity in circuits containing controlled sources

Lecture 99 - Examples

Lecture 100 - Solutions..

Lecture 101 - Feedback amplifier using an opamp

Lecture 102 - Ideal opamp

Lecture 103 - Negative feedback around the opamp

Lecture 104 - Finding opamp signs for negative feedback

Lecture 105 - Example: Determining opamp sign for negative feedback

Lecture 106 - Analysis of circuits with opamps

Lecture 107 - Inverting amplifier

Lecture 108 - Summing amplifier

Lecture 109 - Instrumentation amplifier

Lecture 110 - Negative resistance and Miller effect

Lecture 111 - Finding opamp signs for negative feedback-circuits with multiple opamps

Lecture 112 - Opamp supply voltages and saturation

Lecture 113 - KCL with an opamp and supply currents

Lecture 114 - Solutions...

Lecture 115 - Circuits with storage elements (capacitors and inductors)

Lecture 116 - First order circuit with zero input-natural response

Lecture 117 - First order RC circuit with zero input-Example

Lecture 118 - First order circuit with a constant input

Lecture 119 - General form of the first order circuit response

Lecture 120 - First order RC circuit with a constant input-Example

Lecture 121 - First order circuit with piecewise constant input

Lecture 122 - First order circuit with piecewise constant input-Example

Lecture 123 - First order circuit-Response of arbitrary circuit variables

Lecture 124 - Summary: Computing first order circuit response

Lecture 125 - Does a capacitor block DC?

Lecture 126 - Finding the order of a circuit

Lecture 127 - First order RC circuits with discontinuous capacitor voltages

Lecture 128 - Summary: Computing first order circuit response with discontinuities

Lecture 129 - First order RL circuits

Lecture 130 - First order RL circuit with discontinuous inductor current-Example

Lecture 131 - First order RC circuit with an exponential input

Lecture 132 - First order RC response to its own natural response

Lecture 133 - First order RC response to a sinusoidal input

Lecture 134 - First order RC response to a sinusoidal input-via the complex exponential

Lecture 135 - Summary: Linear circuit response to sinusoidal input via the complex exponential

Lecture 136 - Three methods of calculating the sinusoidal steady state response

Lecture 137 - Calculating the total response including initial conditions

Lecture 138 - Why are sinusoids used in measurement?

Lecture 139 - Second order system natural response

Lecture 140 - Second order system as a cascade of two first order systems

Lecture 141 - Second order system natural response-critically damped and underdamped

Lecture 142 - Generalized form of a second order system

Lecture 143 - Numerical example

Lecture 144 - Series and parallel RLC circuits

Lecture 145 - Forced response of a second order system

Lecture 146 - Steady state response calculation and Phasors

Lecture 147 - Phasors (Continued...)

Lecture 148 - Magnitude and Phase plots

Lecture 149 - Magnitude and phase plotes of a second order system

Lecture 150 - Maximum power transfer and Conjugate matching