Introduction to Phasors
Week 2:
Experiment 22
Experimental Procedures
Do not do the steps labeled Extra Credit in
the Procedure. No extra credit will be given.
The procedures will be modified during the
semester to increase the frequency of
operation.
Passive Bandpass and Notch
Filters
Experimental Procedure
It is not in the lab manual. It is posted on
Week 8 module on Scholar.
Figure 1
Bandpass Filter
Figure 2
Notch Filter
Bandwidth and Q Factor
The difference between the frequencies (in
Hz) where t
Week 4:
Experiment 24
Using Nodal or Mesh Analysis to
Solve AC Circuits with an addition of
Equivalent Impedance
Lab Lectures
You have two weeks to complete Experiment
27: Complex Power
2/27/2012 (Pre-Lab and Validation) and 3/2/2012
(Post-Validation Re
Lab-in-a-Box Validation Checksheet
Experiment 23: Simulated Inductance
NOTE: This lab must be validated before 5PM on Thursday, March 19, 2009.
If your validation is not complete by then, the maximum score you can get on this lab will
drop to 65 points.
N
ECE 3074 Lab Validation
Deadline: Monday, February 6, 2012
Instructions for the Validation:
Constructed the circuit from lab lecture for Experiment 23 on their ANDY board.
Bring the circuit on the ANDY board, the Velleman oscilloscope, and the DMM to OpEL
ECE 3074 Lab Validation
Deadline: Monday, February 6, 2012
Instructions for the Validation:
Constructed the circuit from lab lecture for Experiment 23 on their ANDY board.
Bring the circuit on the ANDY board, the Velleman oscilloscope, and the DMM to OpEL
ECE 3074 Lab Validation Instructions
Experiment 22: Introduction to Phasors
Deadline: 8pm on Monday, January 30, 2012
Instructions for the Validation:
Construct the circuit from Figure 2 from Experiment 22 on the ANDY board.
Bring the circuit on the ANDY
ECE 3074 Lab Validation Instructions
Experiment 22: Introduction to Phasors
Deadline: 8pm on Monday, January 30, 2012
Instructions for the Validation:
Construct the circuit from Figure 2 from Experiment 22 on the ANDY board.
Bring the circuit on the ANDY
ECE 3074 Lab Validation
Deadline: Monday, February 13, 2012
Instructions for the Validation:
Constructed the modified circuit from lab lecture for Experiment 24 and the equivalent circuit on
the ANDY board.
Modified Circuit from Experiment 24
Equivalent C
Phasors and
Kirchhoffs Current Law
Week 3: Experiment 23
Changes to Experiment
Frequency of operation: 40 kHz
You will have to use the arbitrary function generator on the Velleman
scope
Amplitude of voltage supply: 5 V
Inductor: 10 mH
Capacitor: 2.2 nF
Lab-in-a-Box
Audio Mixer and Pre-Amplifier
Name: _
Date: _
Pre-Lab Report:
Analysis Step 1. Write the final equation for the voltage gain as a function of frequency of the
audio mixer and pre-amplifier circuit and include the set of equations used to deri
Maximum Power
Transfer
Or
Narrowband and Broadband Impedance Transformation
First, a couple of points from the
last lecture
For the motor example, there is a second
way to get rid of the reactive power
Choose C so that it cancels the inductor
1mH @ 500
Reading Resistors and
Capacitors
Resistor values and tolerance
Small resistors are color coded with the resistance value in .
The first two digits for the standard values in your kits:
10, 12, 15, 18, 22, 27, 33, 39, 47, 51, 56, 68, 82
Each value is mu
ECE 3074
Lab 2
Winding Inductors and Making AC Measurements with an Oscilloscope
Winding Inductors
Why bother?
Stockpiling inductors is expensive
Its not just the value of inductance you need there are other aspects you
might want to change
Wire thick
Lab 3
Kirchoffs Current Law
Or
Practice Measuring Currents in AC circuits
Measuring currents (including
phase)
Our Function Generator has 50 impedance
Measuring I2 and I3 is easy.
How do we get phase?
Most scope inputs are not differential
FG ground
ECE 3074
Experiment: Passive Notch and Bandpass Filters
Name: _
Date: _
Analysis
Bandpass Filter
The component values for the bandpass filter circuit with a center frequency of 800 Hz are:
Component
R
Rp
Cp
Lp
Value
10 k
100 mH
The expected bandwidth and
ECE 3074
Experiment: Passive Notch and Bandpass Filters
Name: _
Date: _
Analysis
Bandpass Filter
The component values for the bandpass filter circuit with a center frequency of 800 Hz are:
Component
R
Rp
Cp
Lp
Value
10 k
Component
R
Rp
Value
10 k
100 mH
C
ECE 3074
Experiment: Passive Notch and Bandpass Filters
Name: _
Date: _
Analysis
Bandpass Filter
The component values for the bandpass filter circuit with a center frequency of 800 Hz are:
Component
R
Rp
Cp
Lp
Value
10 k
100 mH
Component
R
Rp
Cp
Lp
Value
Lab-in-a-Box
Experiment 23: Phasor Analysis and Kirchhoffs Current Law
Name: _
ID:
_
Date: _
Procedure
Analysis:
Using Kirchhoffs Current Law, the equations for i1 , i 2 , and i3 in terms of L1, C1, R1, R2, R3, and
R4 are:
i1 =
i2 =
i3 =
The calculated va
Lab-in-a-Box
Experiment 14: A Series RC Circuit
Name: _
Pledge: _
ID:
_
Date: _
Procedure
Analysis:
1. Calculate the time constant of the RC network shown in Figure 4 assuming the trim pot is adjusted to
provide the maximum resistance in the circuit.
1
O
Lab-in-a-Box
Experiment 13: Properties of the Soundcard Oscilloscope
Name: _
Pledge: _
ID:
_
Date: _
Procedure
Oscilloscope Measurements:
1. Connect the Channel 1 of the attenuator+iMic+Zeitnitz oscilloscopes 10 attenuator to the output
of the ANDY board
ECE 3074
Experiment 25: Simulated Inductance
Name: _
Date: _
Analysis
1. The derivation for the transfer function for the gyrator circuit is:
2. The component values used in the modified circuit for the gyrator are:
Component
R1
C1
Value
3. The transfer f
Lab-in-a-Box
Experiment24:UsingNodalorMeshAnalysistoSolveACCircuits
Name: _
ID:
_
Date: _
Procedure
Analysis:
a.
Insert a schematic of the frequency-domain equivalent of the modified
circuit in Experiment 24. This means that you replace the component
valu
Lab-in-a-Box
Experiment 23: Using Nodal or Mesh Analysis to Solve AC Circuits
Name: _
ID:
_
Analysis:
Insert the frequency-domain equivalent of the circuit .
Using Kirchoffs Current Law and Ohms Law, the final equations for i1 , i 2 , and i3 in terms of L
Lab-in-a-Box
Experiment22:IntroductiontoPhasors
Name: _
ID:
_
Date: _
Procedure
Analysis:
The angular frequency () of the circuit in Figure 2 is
The impedance of the element if the element is a:
a. 1 k resistor is _.
b. 10 mH inductor is _.
The value of t
ECE 3074
Experiment 37: Electromagnetic Interference
Name: _
Date: _
Analysis:
The values of the resistors and capacitors used in the design for the Twin T notch filter are:
R1 = R 2 =
R3 =
C1 = C 2 =
C3 =
PSpice:
The results from the simulations of the T
ECE 3074
Experiment 27: Complex Power in AC Circuit Analysis
Name: _
Date: _
Analysis:
1. Enter the impedance of the load for the circuit for the three resistors R 2 = 220, 470, and 820 using a
value of 50 for R1 in the table to the right of the circuit.
Lab-in-a-Box
Audio Mixer and Pre-Amplifier
Name: _
Date: _
Pre-Lab Report:
Analysis Step 1. Write the final equation for the voltage gain as a function of frequency of the
audio mixer and pre-amplifier circuit and include the set of equations used to deri