NPTEL : NOC:Basic Electrical Circuits (Electrical 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 - Series connection-Voltage sources in series

Lecture 15 - Series connection of R, L, C, current source

Lecture 16 - Elements in parallel

Lecture 17 - Current source in series with an element; Voltage source in parallel with an element

Lecture 18 - Extreme cases: Open and short circuits

Lecture 19 - Summary

Lecture 20 - Voltage controlled voltage source (VCVS)

Lecture 21 - Voltage controlled current source (VCCS)

Lecture 22 - Current controlled voltage source (CCVS)

Lecture 23 - Current controlled current source (CCCS)

Lecture 24 - Realizing a resistance using a VCCS or CCCS

Lecture 25 - Scaling an element's value using controlled sources

Lecture 26 - Example calculation

Lecture 27 - Power and energy absorbed by electrical elements

Lecture 28 - Power and energy in a resistor

Lecture 29 - Power and energy in a capacitor

Lecture 30 - Power and energy in an inductor

Lecture 31 - Power and energy in a voltage source

Lecture 32 - Power and energy in a current source

Lecture 33 - Goals of circuit analysis

Lecture 34 - Number of independent KCL equations

Lecture 35 - Number of independent KVL equations and branch relationships

Lecture 36 - Analysis of circuits with a single independent source

Lecture 37 - Analysis of circuits with multiple independent sources using superposition

Lecture 38 - Superposition: Example

Lecture 39 - What is nodal analysis

Lecture 40 - Setting up nodal analysis equations

Lecture 41 - Structure of the conductance matrix

Lecture 42 - How do elements circuit appear in the nodal analysis formulation

Lecture 43 - Completely solving the circuit starting from nodal analysis

Lecture 44 - Nodal analysis example

Lecture 45 - Matrix inversion basics

Lecture 46 - Nodal analysis with independent voltage sources

Lecture 47 - Supernode for nodal analysis with independent voltage sources

Lecture 48 - Nodal analysis with VCCS

Lecture 49 - Nodal analysis with VCVS

Lecture 50 - Nodal analysis with CCVS

Lecture 51 - Nodal analysis with CCCS

Lecture 52 - Nodal analysis summary

Lecture 53 - Planar circuits

Lecture 54 - Mesh currents and their relationship to branch currents

Lecture 55 - Mesh analysis

Lecture 56 - Mesh analysis with independent current sources-Supermesh

Lecture 57 - Mesh analysis with current controlled voltage sources

Lecture 58 - Mesh analysis with current controlled current sources

Lecture 59 - Mesh analysis using voltage controlled sources

Lecture 60 - Nodal analysis versus Mesh analysis

Lecture 61 - Superposition theorem

Lecture 62 - Pushing a voltage source through a node

Lecture 63 - Splitting a current source

Lecture 64 - Substitution theorem: Current source

Lecture 65 - Substitution theorem: Voltage source

Lecture 66 - Substituting a voltage or current source with a resistor

Lecture 67 - Extensions to Superposition and Substitution theorem

Lecture 68 - Thevenin's theorem

Lecture 69 - Worked out example: Thevenin's theorem

Lecture 70 - Norton's theorem

Lecture 71 - Worked out example: Norton's theorem

Lecture 72 - Maximum power transfer theorem

Lecture 73 - Preliminaries

Lecture 74 - Two port parameters

Lecture 75 - y parameters

Lecture 76 - y parameters: Examples

Lecture 77 - z parameters

Lecture 78 - z parameters: Examples

Lecture 79 - h parameters

Lecture 80 - h parameters: Examples

Lecture 81 - g parameters

Lecture 82 - g parameters: Examples

Lecture 83 - Calculations with a two-port element

Lecture 84 - Calculations with a two-port element

Lecture 85 - Degenerate cases

Lecture 86 - Relationships between different two-port parameters

Lecture 87 - Equivalent circuit representation of two-ports

Lecture 88 - Reciprocity

Lecture 89 - Proof of reciprocity of resistive two-ports

Lecture 90 - Proof for 4-terminal two-ports

Lecture 91 - Reciprocity in terms of different two-port parameters

Lecture 92 - Reciprocity in circuits containing controlled sources

Lecture 93 - Examples

Lecture 94 - Feedback amplifier using an opamp

Lecture 95 - Ideal opamp

Lecture 96 - Negative feedback around the opamp

Lecture 97 - Finding opamp sign for negative feedback

Lecture 98 - Example: Determining opamp sign for negative feedback

Lecture 99 - Analysis of circuits with opamps

Lecture 100 - More on opamps: Example circuits and additional topics

Lecture 101 - Inverting amplifier

Lecture 102 - Summing amplifier

Lecture 103 - Instrumentation amplifier

Lecture 104 - Negative resistance

Lecture 105 - Finding opamp signs for negative feedback-circuits with multiple opamps

Lecture 106 - Opamp supply voltages and saturation

Lecture 107 - KCL with an opamp and supply currents

Lecture 108 - Circuits with storage elements (capacitors and inductors)

Lecture 109 - First order circuit with zero input-natural response

Lecture 110 - First order RC circuit with zero input-Example

Lecture 111 - First order circuit with a constant input

Lecture 112 - General form of the first order circuit response

Lecture 113 - First order RC circuit with a constant input-Example

Lecture 114 - First order circuit with piecewise constant input

Lecture 115 - First order circuit with piecewise constant input-Example

Lecture 116 - First order circuit-Response of arbitrary circuit variables

Lecture 117 - Summary: Computing first order circuit response

Lecture 118 - Does a capacitor block DC?

Lecture 119 - Finding the order of a circuit

Lecture 120 - First order RC circuits with discontinuous capacitor voltages

Lecture 121 - Summary: Computing first order circuit response with discontinuities

Lecture 122 - First order RL circuits

Lecture 123 - First order RL circuit with discontinuous inductor current-Example

Lecture 124 - First order RC circuit with an exponential input

Lecture 125 - First order RC response to its own natural response

Lecture 126 - First order RC response to a sinusoidal input

Lecture 127 - First order RC response to a sinusoidal input-via the complex exponential

Lecture 128 - Summary: Linear circuit response to sinusoidal input via the complex exponential

Lecture 129 - Three methods of calculating the sinusoidal steady state response

Lecture 130 - Calculating the total response including initial conditions

Lecture 131 - Why are sinusoids used in measurement?

Lecture 132 - Second order system natural response

Lecture 133 - Second order system as a cascade of two first order systems

Lecture 134 - Second order system natural response-critically damped and underdamped

Lecture 135 - Generalized form of a second order system

Lecture 136 - Numerical example

Lecture 137 - Series and parallel RLC circuits

Lecture 138 - Forced response of a second order system

Lecture 139 - Steady state response calculation and Phasors

Lecture 140 - Phasors (Continued...)

Lecture 141 - Magnitude and Phase plots

Lecture 142 - Magnitude and phase plotes of a second order system

Lecture 143 - Maximum power transfer and Conjugate matching