ELG 3136 HW9
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Electrical Engineering
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Jan 9, 2024
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ELG3136
Fall 2023
Assignment 9 Posting Date: Saturday Nov 13, 2023
General instructions 1. Your equations and solutions may be hand-written, scanned into a PDF format. 2. A typed solution, with all relevant circuit diagrams drawn with VISIO (or other software), will be given a bonus mark of up to 10% the full mark 3. Once you have a PDF file for your entire assignment you can upload it to your account on the Brightspace. 4. Only one PDF file will be accepted.
ELG3136 - Fall 2023
Assignment 9
The cascode amplifier circuit shown in Figure 2 below
1
, has the following parameters.
Figure 1 Specifications of the circuit shown below.
Figure 2 Circuit Schematic
Your tasks.
1.
You will need construct the circuit the circuit in MultiSim. Note that the MultiSim circuit has been provided as the solution to assignment 3. 2.
Use MultiSim to extract the numerical values of the poles
and zeros
of the voltage gain transfer function.
3.
Use the AC sweep simulation function
in MultiSim to run frequency analysis of the amplifier and graph the Bode
plot for the voltage gain as function of frequency.
1
Note that this circuit is the same circuit that was used in the previous assignments (Assignments 2 & 3).
Your Deliverables
1.
A PDF report file: MUST
include at least a screenshot of the circuit schematic taken from MultiSim showing the full simulation results captured in one shot.
2.
The circuit schematic file (.ms14) in MultiSim
Your Grade
Your mark will be evaluated based on how your PDF report addresses the following questions.
1.
(5 points) Is the circuit shown in the PDF file (the screenshot) the same as your schematic file (.ms14)?
2.
(20 points) Does the PDF report show the numerical values of the poles/zeros in tabulated form?
3.
(5 points) Does the number of the poles/zeros match the correct number of poles/zeros? 4.
(5 points) Do the numerical values of the poles/zeros match the correct values.
5.
(20 points) Does the report show the Bode Plot obtained from the AC frequency sweep.
6.
(15 points) Do you highlight the mid-frequency voltage gain and correlate it with the analysis and simulation results from the past assignments.
7.
(30 points) Do you clearly explain the relation between the locations of the poles/zeros and the behavior of the Bode plot in light of your understanding of the lectures.
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Recommendations for the simulations configuring the transistor models:
Set CBD and CBS to 1n F, for both transistors, as shown below. This will set the parasitic capacitors to unified values.
Configuring the Pole/Zero Analysis
Use the panel below to as a guiding to set up the pole/zero analysis of the circuit.
Configuring the AC sweep:
Set the parameters for the AC sweep (which is used to run the frequency analysis) as shown in the panel below. This will let you see the frequency behavior from extremely low frequencies approaching the DC value to very high frequencies around the THz. See the graph below for the magnitude and phase of the voltage gain.
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In the output tab, select the voltage at the output node, similar to what is shown below.
Solution of Assignment 9
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The Setup for Pole/Zero Analysis
Results of Pole/Zero Analysis
•
4 poles and 3 zeros The voltage gain transfer function has
2 zeros are located at the zero frequency. All poles and zeros are real (no imaginary values)
The Setup for the AC Sweep to find the frequency response.
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Results of AC sweep
Decade of frequency
Analysis of the AC Sweep
2 Zeros located at the zero frequency causing the gain to start rising
at 40 dB/decade
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Pole(4): “bends” the plot to make it rise at 20 db/decade
Pole (3): This one causes the gain flatten out (now it is 0 dB/decade)
The voltage gain in the mid-frequency band is 100 dB. Note that Therefore,
Pole (1) and pole(2) : Two almost equal poles in the kHz range (very close to each other) that cause the gain to drop
the rate of -40 dB/decade
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Zero (1) : This is in the MHz range. It causes the drop in the voltage gain to slow down from -40 db/decade to only -20/decade
Related Questions
USING: Mobile Phone (android) / Laptop (bluestacks)*Note: MacroPLC can also be accessed by laptop, mobile phone (IOS/Android) thru thiswebsite link. (https://www.macroplc.com/simulador/) No installation is required.
Create a PLC program given the following conditions:
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What's the Arduino code (C++) for this project?
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I have an O Gauge track and would like to convert it into a “sensored” track. Additionally, I would like to connect that track to an ESP-WROOM-32 board that should flash an LED whenever the track detects a non-moving train. Please list all the components (and how many of each) needed. Also, what’s the procedure for connecting the components?
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Series
Circuit
4.(4)
Location
Voltage
AIA2
Double-click to hide white space
BIB2 - Lamp B
Cic2 -- Lamp C
Across Power Supply - (Entire
Circuit)
5.(4a) How does the voltage across the lamps compare?.
6.(4b) How does the voltage of each lamp compare with the voltage of the power supply2
Describe how the voltage changes2
7.(6)
Inited States)
Focus
MacBook Air
88
DII
F3
F4
F5
F6
F7
F8
F9
F10
$
4
6.
7
8.
R
T.
Y
U
F
G
H
J
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DEGREE: ELECTRICAL ENGINEERING
SUBJECT/COURSE: AC CIRCUITS
NOTE: Please solve in this way.
1. Please have a good handwriting, some of the answers are not readable. Thank you!
2. GIVEN.(include symbols and units)
3. REQUIRED/FIND/MISSING (with symbol/s)
4. ILLUSTRATION (Required).
5. STEP-by-STEP SOLUTION with Formulas and Symbols. No Shortcut, No skipping, and detailed as possible
6. FINAL ANSWERS must be rounded up to three decimal places
PROBLEM:
• An abc-phase sequence three-phase balanced wye-connected source supplies a balanced delta-connected load. The impedance per phase of the delta load is 10+j8 Ω. If the line impedance is zero and the line current in a phase is known to be la=28.10<-28.66° Arms, find the load voltage Vab.
arrow_forward
DEGREE: ELECTRICAL ENGINEERING
SUBJECT/COURSE: AC CIRCUITS
NOTE: Please solve in this way.
1. Please have a good handwriting, some of the answers are not readable. Thank you!
2. GIVEN.(include symbols and units)
3. REQUIRED/FIND/MISSING (with symbol/s)
4. ILLUSTRATION (Required).
5. STEP-by-STEP SOLUTION with Formulas and Symbols. No Shortcut, No skipping, and detailed as possible
6. FINAL ANSWERS must be rounded up to three decimal places
PROBLEM:
• A 300V(line) 3-phase supply feeds a star-connected load consisting of non-inductive resistors of 15, 6 and 10Ω connected to the R, Y and B lines, respectively. The phase sequence is RYB. Calculate the voltage across each resistor.
arrow_forward
DEGREE: ELECTRICAL ENGINEERING
SUBJECT/COURSE: AC CIRCUITS
NOTE: Please solve in this way.
1. Please have a good handwriting, some of the answers are not readable. Thank you!
2. GIVEN.(include symbols and units)
3. REQUIRED/FIND/MISSING (with symbol/s)
4. ILLUSTRATION (Required).
5. STEP-by-STEP SOLUTION with Formulas and Symbols. No Shortcut, No skipping, and detailed as possible
6. FINAL ANSWERS must be rounded up to three decimal places
PROBLEM:
• A 400V, 3-phase, 4 wire, star-connected system supplies three resistive loads of 15kW, 20kW and 25kW in the red, yellow and blue phases respectively. Determine the current flowing in each of the four conductors.
arrow_forward
DEGREE: ELECTRICAL ENGINEERING
SUBJECT/COURSE: AC CIRCUITS
NOTE: Please solve in this way.
1. Please have a good handwriting, some of the answers are not readable. Thank you!
2. GIVEN.(include symbols and units)
3. REQUIRED/FIND/MISSING (with symbol/s)
4. ILLUSTRATION (Required).
5. STEP-by-STEP SOLUTION with Formulas and Symbols. No Shortcut, No skipping, and detailed as possible
6. FINAL ANSWERS must be rounded up to three decimal places
PROBLEM:
• Three inductive loads, each of resistance 4Ω and reactance 9Ω are connected in delta. When connected to a 3-phase supply the loads consume 1.2kW. Calculate:
(a) the power factor ofthe load,
(b)the phase current and the line current, and
(c) the supply voltage.
arrow_forward
DEGREE: ELECTRICAL ENGINEERING
SUBJECT/COURSE: AC CIRCUITS
NOTE: Please solve in this way.
1. Please have a good handwriting, some of the answers are not readable. Thank you!
2. GIVEN.(include symbols and units)
3. REQUIRED/FIND/MISSING (with symbol/s)
4. ILLUSTRATION (Required).
5. STEP-by-STEP SOLUTION with Formulas and Symbols. No Shortcut, No skipping, and detailed as possible
6. FINAL ANSWERS must be rounded up to three decimal places
PROBLEM:
• In a balanced three-phase wye-delta system, the source has an abc-phase sequence and Van=120<40° Vrms. The line and load impedance are 0.5+j0.4 Ω and 24+j18 Ω, respectively. Find the delta currents in the load.
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- DEGREE: ELECTRICAL ENGINEERING SUBJECT/COURSE: AC CIRCUITS NOTE: Please solve in this way. 1. Please have a good handwriting, some of the answers are not readable. Thank you! 2. GIVEN.(include symbols and units) 3. REQUIRED/FIND/MISSING (with symbol/s) 4. ILLUSTRATION (Required). 5. STEP-by-STEP SOLUTION with Formulas and Symbols. No Shortcut, No skipping, and detailed as possible 6. FINAL ANSWERS must be rounded up to three decimal places PROBLEM: • Three inductive loads, each of resistance 4Ω and reactance 9Ω are connected in delta. When connected to a 3-phase supply the loads consume 1.2kW. Calculate: (a) the power factor ofthe load, (b)the phase current and the line current, and (c) the supply voltage.arrow_forwardDEGREE: ELECTRICAL ENGINEERING SUBJECT/COURSE: AC CIRCUITS NOTE: Please solve in this way. 1. Please have a good handwriting, some of the answers are not readable. Thank you! 2. GIVEN.(include symbols and units) 3. REQUIRED/FIND/MISSING (with symbol/s) 4. ILLUSTRATION (Required). 5. STEP-by-STEP SOLUTION with Formulas and Symbols. No Shortcut, No skipping, and detailed as possible 6. FINAL ANSWERS must be rounded up to three decimal places PROBLEM: • In a balanced three-phase wye-delta system, the source has an abc-phase sequence and Van=120<40° Vrms. The line and load impedance are 0.5+j0.4 Ω and 24+j18 Ω, respectively. Find the delta currents in the load.arrow_forward
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