Reference no: EM131211757
Procedure:
Open Multisim Software
Program Files -> National Instruments (folder) -> Circuit Design Suite -> Multisim
Maximum Power Transfer
- Make a Thevenin circuit with any voltage and resistance you choose with V between 1-12V and R between 1kOhm and 50kOhms.
- Attach a load resistor and place indicators or multimeter to measure voltage across the load and the current through it. You will use this to calculate power dissipated by the load.
- Adjust the value of the Load resistor and pay attention to how the current and voltage changes for that resistor.
- Take measurements of load resistance vs. power. Verify that using the Thevenin resistance gives you maximum power in the load.
Take enough data that you have 5 data points at R values less than the Thevenin value and 5 above (11 data points in all).
- Repeat this with the Norton equivalent of the Thevenin circuit you chose.
- For efficiency, remember that η = (PLoad/PSource ) * 100%
- PSource Th = Eth2/(RL+RTh ) and PSource N = IN2*(RL||RN )
Insert a screenshot of your loaded Thevenin circuit diagram with multimeters here:
ETh = _____________ RTh = _________________
|
Thevenin
|
Choose R values between 1kOhm and 50kOhms.
|
|
No units needed in table, use units designated.
|
1
RL <RTh
|
2
RL <RTh
|
3
RL <RTh
|
4
RL <RTh
|
5
RL <RTh
|
Max Power
RL =RTh
|
6
RL >RTh
|
7
RL >RTh
|
8
RL >RTh
|
9
RL >RTh
|
10
RL >RTh
|
|
R Load (kOhms)
|
|
|
|
|
|
|
|
|
|
|
|
|
I Load (mAmps)
|
|
|
|
|
|
|
|
|
|
|
|
|
VLoad (Volts)
|
|
|
|
|
|
|
|
|
|
|
|
|
PLoad (mWatts)
|
|
|
|
|
|
|
|
|
|
|
|
|
PSource (mWatts)
|
|
|
|
|
|
|
|
|
|
|
|
|
η(efficiency =)
|
|
|
|
|
|
|
|
|
|
|
|
Insert a screenshot of your loaded Norton circuit diagram with multimeters here:
IN = _________________RN = _________________
|
Norton
|
Use the same resistance values as above
|
|
No units needed in table, use units designated.
|
1
RL <RTh
|
2
RL <RTh
|
3
RL <RTh
|
4
RL <RTh
|
5
RL <RTh
|
Max Power
RL =RTh
|
6
RL >RTh
|
7
RL >RTh
|
8
RL >RTh
|
9
RL >RTh
|
10
RL >RTh
|
|
R Load (kOhms)
|
|
|
|
|
|
|
|
|
|
|
|
|
I Load (mAmps)
|
|
|
|
|
|
|
|
|
|
|
|
|
VLoad (Volts)
|
|
|
|
|
|
|
|
|
|
|
|
|
PLoad (mWatts)
|
|
|
|
|
|
|
|
|
|
|
|
|
PSource (mWatts)
|
|
|
|
|
|
|
|
|
|
|
|
|
η(efficiency =)
|
|
|
|
|
|
|
|
|
|
|
|
For each load resistor, was there any difference in Current, Voltage or Power between the Thevenin and Norton Circuit?
Which resistor gave you the highest efficiency (for Norton and Thevenin) and why?
Does the highest efficiency load resistor also give you the maximum power?
Graph load power (y axis) vs. load resistance (x-axis) in excel and copy the graph into your lab with Thevenin and Norton data on the same graph. Create a second graph with the x-axis converted to a logarithmic scale. Also graph efficiency for Thevenin and Norton vs. load resistance with a linear scale only.
o Your graph should be a scatter plot and show measured power or efficiency on the y- axis and Load Resistance on the x- axis
o Each axis is labeled and shows the units.
Insert graph of Load Power vs. Load Resistance in regular scaling with Thevenin and Norton on the same graph:
Insert graph of Load Power vs. Load Resistance in log scaling for x with Thevenin and Norton on the same graph:
Insert graph of Efficiency vs. Load Resistance for Thevenin and Norton on the same graph:
|
Report net cash provided by investing activities
: Net income $ 16,000 Cash dividends paid to stockholders 3,700 Cash proceeds from sale of land 3,850 Cash proceeds from bank loan 10,100 Cash payment (principal) on bank loan 2,800 Cash paid to purchase equipment 7,400 The company would report net cas..
|
|
Strategy of providing consumers income tax credits
: 1. Assume the government has set a goal in 2016 to be more environmentally friendly; to meet this goal the government has come up with a strategy of providing consumers income tax credits for installing an energy efficient heating source:
|
|
Determine running time of a network
: Let the entries of two n×n matrices be uniformly distributed on the vertices of original mesh. Give an efficient matrix multiplication algorithm on this network and determine its running time
|
|
World bank or the international monetary fund
: Identify which of the following situations currently faced by the World Bank or the International Monetary Fund are examples of adverse selection and which are examples of moral hazard. (See pages 420-424.)
|
|
Adjust the value of the load resistor and pay attention
: ENRG 2140 Lab Activity If a 20-gram weight is positioned 10 cm from the pivot, where should a 40-gram weight be placed and Why is it important for the standard to be as accurate as possible?
|
|
What was oscars estate tax liability when he died
: Oscar (age 70) and Maggie (age 60) were married and jointly owned a personal residence valued at $3,800,000 when Oscar died in 2015. Oscar also owned stocks valued at $4,700,000; an art collection valued at $ What was Oscar’s estate tax liability whe..
|
|
Identify the steps in an accident investigation follow-up
: Identify the steps in an accident investigation follow-up. Which step do you feel is the most critical? What is accident trending? Why is trending so important for accident investigation to ensure hazard prevention?
|
|
Does frère bros have any remedy
: Joe, a well-known film actor, entered into a contract with Frère Bros for a period of five years where he agreed to give his services exclusively to Frère Bros and not act in films for any other company during this period. During the first year of..
|
|
Major government construction project
: During that year, however, a new group of banks participated in a $125 million loan to help finance a major government construction project in the capital city. Domestic firms also issued $50 million in bonds and $75 million in stocks to foreign i..
|