[SOLVED] lap report in Electrical Circuit, engineering homework help – Engineering

by | Aug 24, 2022 | Engineering

Hello I need some one do the lap report for me in Electrical Circuit I uploaded all the information and the instructions, and please follow all the steps Also, I know many classmate do there lap report here in the same website, so please please be careful I need my workto be a very unique I need a conclusion for my lap alsoLab  #7:  Thevenin’s  Theorem  
Applica7on  
Dr.    Yacob  Astatke  
SPRING  2014  
 
Lab  #7:  Thevenin’s  Theorem  
§   Defini’on:  “Any  circuit  of  resistance  elements  
and  energy  sources  with  an  iden7fied  terminal  
pair  (known  as  the  load  terminals)  can  be  
replaced  by  a  Thevenin  equivalent  circuit  which  
consists  of  an  ideal  voltage  source  Vt  (Voc)  in  
series    with  a  resistance  Rt.    
Lab  #7:  Thevenin’s  Theorem  
§   The  Thevenin  equivalent  circuit  can  be  obtained  
by  finding  Vth  and  Rth  .    
§ Vth  èOpen  circuit  voltage    across    nodes  (a,b)  
§ Rth  è  Open  circuit  equivalent  resistance                                    
across  nodes  (a,b)  
§ Isc  è  Short  circuit  current  across  (a,b)  
Lab  #7:  Thevenin’s  Theorem  
§   Part  I:  Use  Thevenin’s  theorem  to  chose  RL  for  
maximum  power  transfer.    
§   Assume  :  R1  =  1  kΩ  ,  R2  =  1  kΩ      
§   Assume:  Vs1=  4  VDC  and  Vs2=  3VDC    
 
 
 
Lab  #6:  Superposi7on  Theorem  
§   Part  I:  Use  Superposi7on  theorem  to  compute  the  
currents  and  voltages  across  the  3  resistors.      
§   Assume  Vs1=  AWG1=  4  VDC  and  Vs2=  AWG2=  3VDC      
§   Apply    Vs1  and  Vs2  from  using  AWG1,  and  AWG2  power  
supplies  on  your  ANALOG  DISCOVERY  board.  
§   NOTE:  To  generate  a  DC  output  from  the  Digilent  Analog  
Discovery,  make  a  sine  wave  with  a  0V  amplitude  and  
then  use  the  offset  to  move  the    signal  to  the  DC  voltage  
needed.  
§ Example:    AWG1  è  Amplitude  =  0  V  and  Offset  =  4V  
§ Example:    AWG2    è  Amplitude  =  0  V  and  Offset  =  3V  
§ Note  that  the    graphical  display  of  the  output  for  AWG  1  
and  AWG2  is  a  straight  line  equal  to  4V  OR  3V.  
 
 
Lab  #7:  Thevenin’s  Theorem  
§   Step#1:  Draw  the  RTh  circuit.    
§   Remove  the  load  RL  and  find  RTh.    
 
 
Lab  #7:  Thevenin’s  Theorem  
§   Step#2:  Draw  the  VTh  circuit.    
§   Remove  the  load  RL  and  find  VTh.    
 
 
Lab  #7:  Thevenin’s  Theorem  
§   Step#2:  Draw  the  final  Thevenin  circuit.    
§   Choose  RL  for  maximum  power  transfer.      
 
 
Lab  #7:  Thevenin’s  Theorem  
§   Part  II:  Build  the  Original    circuit  with  2  sources  
§   Measure  the  currents  and  voltages  across  RL  as  you  
vary  RL  from  100  Ω  up  to  1  kΩ  .  Enter    your  measured  
values  in  Table  #1.  
§   Use  a  decade  box    or  a  variable  resistor  to  vary  RL.    
§   Use  your  hand-­‐held  mul’-­‐meter  to  measure  the  
currents.    
§ Plot  the  power  across  P_RL  (y-­‐axis)  versus  RL  (x-­‐axis)    
and  show  that  the  maximum  power  value  occurs  close  
to  the  value  that  was  predicted  theore7cally.    
§   Explain  any  differences  between  the  theore7cal  and  
measured  values.    
 
 
Lab  #7:  Thevenin’s  Theorem  
Table  1:  Voltage  &  Current  across  RL  using  Original  Circuit      
RL (Ω)
100
200
300
400
500
600
700
800
900
1000
Iload (Amps)
Vload (V)
Power_RL ()
Lab  #7:  Thevenin’s  Theorem  
§   Part  II:  Build  the  Thevenin  circuit    
§   Measure  the  currents  and  voltages  across  RL  as  you  
vary  RL  from  100  Ω  up  to  1  kΩ  .  Enter    your  measured  
values  in  Table  #1.  
§   Use  a  decade  box    or  a  variable  resistor  to  vary  RL.    
§   Use  your  hand-­‐held  mul’-­‐meter  to  measure  the  
currents.    
§ Plot  the  power  across  P_RL  (y-­‐axis)  versus  RL  (x-­‐axis)    
and  show  that  the  maximum  power  value  occurs  close  
to  the  value  that  was  predicted  theore7cally.    
§   Explain  any  differences  between  the  theore7cal  and  
measured  values.    
Lab  #7:  Thevenin’s  Theorem  
Table  2:  Voltage  &  Current  across  RL  using    Thevenin  Circuit      
RL (Ω)
100
200
300
400
500
600
700
800
900
1000
Iload (Amps)
Vload (V)
Power_RL ()
The outline of your laboratory report should be as follows:
1.
2
3.
4.
5.
6.
7.
Title
Date and your partners’ name(s).
Purpose of the experiment, in your own words (Do not copy the handout).
Equipment used.
Introduction (overall outline of your report).
Theory or Background (Include schematics, diagrams, etc.)
Experimental procedure and data. DO NOT FORGET THE UNITS.
(ALL DATA SHOULD BE TABULATED AND ALL FIGURES
NUMBERED.)
Results and discussion (error calculations, analysis of the results, and answers to all
the questions in the handout.)
Signature of all members of the group.
8.
9.

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