Basic Laws of Electric Circuits
Equivalent Resistance
Lesson 5
Basic Laws of Circuits
Equivalent Resistance:
We know the following for series resistors:
R
R
1
R
2
. . .
R
eq
. . .
Figure 5.1: Resistors in series.
Req = R1 + R2 + . . . + RN
1
N
Basic Laws
Basic Electric Circuits
Introduction To
Operational Amplifiers
Lesson 8
Basic Electric Circuits
Operational Amplifiers
One might ask, why are operational amplifiers
included in Basic Electric Circuits?
The operational amplifier has become so cheap in
pric
DC CIRCUIT ANALYSIS
ATTIQ AHMAD
Autumn 2007
MCS
1
Dc Cct Analysis -Autumn 2007
Department of Electrical Engineering, MCS, Nust
OBJECTIVE:
To enable the students to give a working knowledge of basic circuit
principles and a demonstrated ability to solve a
Basic Electric Circuits
Thevenins and Nortons
Theorems
Lesson 10
THEVENIN & NORTON
THEVENINS THEOREM:
Consider the following:
A
Network
1
B
Network
2
Figure 10.1: Coupled networks.
For purposes of discussion, at this point, we consider
that both networks
Introduction To Resonant
Circuits
University of Tennessee, Knoxville
ECE Department
wlg
1
Resonance In Electric Circuits
Any passive electric circuit will resonate if it has an inductor
and capacitor.
Resonance is characterized by the input voltage and cu
Introduction To
Analog Filters
The University of Tennessee
Knoxville, Tennessee
wlg
Filters
Background:
.
Filters may be classified as either digital or analog.
.
Digital filters are implemented using a digital computer
or special purpose digital hardware
Basic Laws of Electric Circuits
Nodal Analysis
Lesson 6
Basic Circuits
Nodal Analysis: The Concept.
Every circuit has n nodes with one of the nodes being
designated as a reference node.
We designate the remaining n 1 nodes as voltage nodes
and give each
Methods of Analysis
Mesh (Loop) Analysis.
Branch Current Analysis
Nodal Analysis
Delta-Wye(Pi-Ti) Conversion
Constant-Current Sources
All the circuits presented so far have used
voltage sources as the means of providing
power.
The symbol for a const
Basic Laws of Electric Circuits
Mesh Analysis
Lesson 7
Basic Circuits
Mesh Analysis: Basic Concepts:
In formulating mesh analysis we assign a mesh
current to each mesh.
Mesh currents are sort of fictitious in that a particular
mesh current does not defin
Poles and Zeros and Transfer Functions
Transfer Function:
A transfer function is defined as the ratio of the Laplace
transform of the output to the input with all initial
conditions equal to zero. Transfer functions are defined
only for linear time invari
Ohms Law,Power and Energy
Ahmad Attiq
Ohms Law
From this we can see that the larger the applied voltage, the larger the
current, while the larger the resistance, the smaller the current.
Autumn 07
DC Cct Analysis
larger the
resistance,
the smaller the cur
Autumn 07
DC Cct Analysis
Parallel Circuits
Last Figure shows that one terminal of each light bulb is connected to the
positive terminal of the battery and that the other terminal of the light bulb is
connected to the negative terminal of the battery.
The
Charge ,Voltage ,Current and Resistor
Attiq Ahmad
1
Revision !
SI System of units
Power of Ten Notation
Scientific notation
Numerical accuracy
Circuit Diagrams
Autumn 2007
DC Cct Analysis
MCS
Atomic Theory
The basic structure of an
atom is shown in Figure
Revision
In the previous chapter we examined the interrelation
of current, voltage, resistance, and power in a single
resistor circuit.
In this chapter we will expand on these basic concepts
to examine the behavior of circuits having several
resistors in
The Series-Parallel Network
In electric circuits,we define a branch as any
portion of a circuit which can be simplified as
having two terminals.
The components between the two terminals
may be any combination of resistors,voltage
sources,or other ele-ment