LEARNING BY APPLICATION
FIND THE THEVENIN EQUIVALENT FOR THE UNKNOWN
ELEMENT USING A RESISTOR AND A VOLTMETER
+
EQUIVALENT FOR 2.4V
ELEMENT+SOURCE -
VTH = 2.4V
(measured
in open
circuit)
+ 1.6V -
2.4V
0.8mA
RTH = 2kW
LEARNING BY DESIGN
MEASURED ACROSS
TES
ADDITIONAL ANALYSIS TECHNIQUES
LEARNING GOALS
REVIEW LINEARITY
The property has two equivalent definitions.
We show an application of homogeneity
APPLY SUPERPOSITION
We discuss some implications of the superposition property in
linear circuits
DEVELOP THE
LOOP ANALYSIS
The second systematic technique
to determine all currents and
voltages in a circuit
IT IS DUAL TO NODE ANALYSIS - IT FIRST DETERMINES ALL CURRENTS IN A CIRCUIT
AND THEN IT USES OHMS LAW TO COMPUTE NECESSARY VOLTAGES
THERE ARE SITUATIONS WHER
NODAL AND LOOP ANALYSIS TECHNIQUES
LEARNING GOALS
NODAL ANALYSIS
LOOP ANALYSIS
Develop systematic techniques to determine all the voltages
and currents in a circuit
CIRCUITS WITH OPERATIONAL AMPLIFIERS
Op-amps are very important devices, widely available,
CIRCUITS WITH OPERATIONAL AMPLIFIERS
Why do we study them at this point?
1. OpAmps are very useful electronic components
2. We have already the tools to analyze practical circuits
using OpAmps
3. The linear models for OpAmps include dependent sources
COMM
RESISTIVE CIRCUITS
Here we introduce the basic concepts and laws that are
fundamental to circuit analysis
LEARNING GOALS
OHMS LAW - DEFINES THE SIMPLEST PASSIVE ELEMENT: THE
RESISTOR
KIRCHHOFFS LAWS - THE FUNDAMENTAL CIRCUIT CONSERVATION
LAWS- KIRCHHOFF
SECOND-ORDER CIRCUITS
THE BASIC CIRCUIT EQUATION
+ vC + vR -
iR
iL
iC
Single Node-pair: Use KCL
Single Loop: Use KVL
- v S + v R + vC + v L = 0
- i S + i R + i L + iC = 0
iR =
+
vL
1t
di
v (t )
1
dv
; i L = v ( x )dx + i L (t0 ); iC = C (t ) v R = Ri; vC
THEVENINS AND NORTONS THEOREMS
These are some of the most powerful
analysis results to be discussed.
They permit us to hide information that is
not relevant and concentrate on what is
important to the analysis
Low distortion audio power amplifier
TO MATCH
Name:_
LSU ID:_
Project 1 Grading Rubric (100 points)*
You get to select how many points each item is worth. A minimum of 5 points is required for each item,
unless otherwise stated. This rubric is due to in class September 21. Keep a copy for yourself. O