This preview shows page 1. Sign up to view the full content.
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Lesson 25 – Signals III (Section 55 and 57) (CLO 51 through 53)
This is the last lesson of a threelesson block on signals.
This section focuses on composite signals and how to
construct them using OrCAD and MATLAB.
We start by discussing the various composite signals that can be constructed by combining the basic signals
studied in the preceding two lessons. In particular we will look at the charging exponential, the double
exponential, the damped ramp, and the decaying sinusoid.
All four of these composite signals can represent input to circuits but more often are the transient response to
circuits excited by unit steps that will be studied in Ch 7.
It is useful to write the expression of the waveform
for each and then show graphically how the two or three simple waveforms combine to produce the
composite.
.
For example,
)
(
)
(
t
u
e
V
t
v
T
t

=

C
1
A
V is composed of a step
)
(
t
This is the end of the preview. Sign up
to
access the rest of the document.
 Spring '08
 MAURICIODEOLIVERIA

Click to edit the document details