ELEC 101

    Lab 6
Drawing Circuits
Lab 6 Objectives
•  Identify Circuit connections and configuration
     –    Series Connections
     –    Parallel Connect...
Lab 6

Circuit Configurations
The Series Circuit




•  Single path from + terminal of source, through components, to – terminal
   of the source
     –...
The Parallel Circuit




•  Multiple paths from + terminal of source, through components, to –
   terminal of the source
 ...
The Series-Parallel Circuit




•  R1 and R3 are in series
•  The series combination of R1 and R3 is in Parallel with R2

...
The Series-Parallel Circuit




•  R2 and R3 are in Parallel
•  The Parallel combination of R2 and R3 is in series with R1...
Lab 6A

Components Used in this Lab
VDC- The DC Voltage Source




        Insert Anode, the + terminal up. Usually, the – terminal will be grounded

February...
VDC – Battery or DC Voltage Source




•    Orientation is significant
•    Two Terminals
      –  Anode
      –  Cathode
...
Property Editor




•    The Property Editor presents the part information in a spreadsheet format
•    All values and par...
R - The Resistor




         Orientation of resistors are not important – They are linear and bilateral

February 2004   ...
GND/CAPSYM - Ground




                Make sure you change the name is 0 or PSpice will generate
                an erro...
Lab 6A

Drawing a Series Circuit
Creating Schematics
•  When drawing a schematic, it is most efficient if you
   –  Place Components
   –  Modify part valu...
Lab 6A Schematic

                               <= Part Reference
                               <= Part Value




Februa...
Place Net Alias




February 2004      ELEC 101 - Lab 6
Circuit for Lab 6A




February 2004        ELEC 101 - Lab 6
Lab 6B

Drawing the Circuit
Drawing the Circuit
•    Place the components at the desired location
•    Modify the part values and part references as n...
Place the Parts




February 2004      ELEC 101 - Lab 6
Modify Part References and Values




                If desired, reposition the part references and values to make
      ...
Lab 6B Final Circuit




February 2004         ELEC 101 - Lab 6
Lab 6C

Complex Circuits with Crossovers
New Parts Used in the Drawing
AC Sine Sources




February 2004       ELEC 101 - Lab 6
NPN Transistor




Q2N2222A Model Parameters
.model    Q2N2222 NPN(Is=35f Xti=3 Eg=1.11 Vaf=100 Bf=250 Ne=1.5
+         Is...
Capacitor




February 2004    ELEC 101 - Lab 6
VCC Bar




February 2004   ELEC 101 - Lab 6
Two types of Crossovers




     When you draw a wire that crosses over another, you must pay particular
     attention at...
Make sure there is no dot at the crossover




February 2004         ELEC 101 - Lab 6
Circuit for Lab 6C




February 2004        ELEC 101 - Lab 6
Modifying the Q1 Model




CL on Q1. CR and CL on Edit PSpice Model.
CL in right window of the Model Editor, press CTRL HO...
Circuits for Submission
Circuit for Lab 6A




February 2004        ELEC 101 - Lab 6
Circuit for Lab 6B




February 2004        ELEC 101 - Lab 6
Circuit for Lab 6C




February 2004        ELEC 101 - Lab 6
Model Statement for Lab 6C
*Your_Last_Name
.model Q2N2222 NPN(Is=35f Xti=3 Eg=1.11 Vaf=100 Bf=250 Ne=1.5
+              Is...
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lab06

  1. 1. ELEC 101 Lab 6 Drawing Circuits
  2. 2. Lab 6 Objectives •  Identify Circuit connections and configuration –  Series Connections –  Parallel Connections –  The Series Circuit –  The Parallel Circuit –  The Series-Parallel Circuit •  Drawing Circuits –  Entering Components –  Rotating components –  Changing component values and labels –  Selecting and moving components or groups of components February 2004 ELEC 101 - Lab 6
  3. 3. Lab 6 Circuit Configurations
  4. 4. The Series Circuit •  Single path from + terminal of source, through components, to – terminal of the source –  Current is the same everywhere in the circuit •  There are 3 nodes in the circuit shown •  If a component is added in series –  Break the circuit where you wish to add the component –  Enter the component and wires as necessary to complete the circuit –  Each component added in series adds one more node February 2004 ELEC 101 - Lab 6
  5. 5. The Parallel Circuit •  Multiple paths from + terminal of source, through components, to – terminal of the source –  Current in each branch depends on value of branch resistance •  There are 2 nodes in the circuit shown •  If a component is added in parallel –  Enter the component in parallel where desired –  Add wires as necessary to complete the circuit –  When a component is added in parallel does not create a new node February 2004 ELEC 101 - Lab 6
  6. 6. The Series-Parallel Circuit •  R1 and R3 are in series •  The series combination of R1 and R3 is in Parallel with R2 February 2004 ELEC 101 - Lab 6
  7. 7. The Series-Parallel Circuit •  R2 and R3 are in Parallel •  The Parallel combination of R2 and R3 is in series with R1 February 2004 ELEC 101 - Lab 6
  8. 8. Lab 6A Components Used in this Lab
  9. 9. VDC- The DC Voltage Source Insert Anode, the + terminal up. Usually, the – terminal will be grounded February 2004 ELEC 101 - Lab 6
  10. 10. VDC – Battery or DC Voltage Source •  Orientation is significant •  Two Terminals –  Anode –  Cathode •  Enter component according to instructions or polarity of output will be reversed and considered incorrect •  You can change the Part Reference (VS above) and the Part Value (12VDC) •  DCL on the Reference or value and change in dialog box •  CL on Component and CR to open Property Editor February 2004 ELEC 101 - Lab 6
  11. 11. Property Editor •  The Property Editor presents the part information in a spreadsheet format •  All values and part information about the selected part can be edited and displayed or hidden •  More difficult than previous method to change values and part references since you must find the right boxes and replace the current values –  the red arrows in the graphic above show where to change the component value and part reference for the VDC source •  Usually requires horizontal scrolling •  There are easier ways to modify part values February 2004 ELEC 101 - Lab 6
  12. 12. R - The Resistor Orientation of resistors are not important – They are linear and bilateral February 2004 ELEC 101 - Lab 6
  13. 13. GND/CAPSYM - Ground Make sure you change the name is 0 or PSpice will generate an error message when a simulation is attempted February 2004 ELEC 101 - Lab 6
  14. 14. Lab 6A Drawing a Series Circuit
  15. 15. Creating Schematics •  When drawing a schematic, it is most efficient if you –  Place Components –  Modify part values and part references if necessary –  Move the part references and part values if desired –  Move and realign components as necessary to create a professional schematic –  Add wires –  Add at least 1 ground named 0 –  Add one or more net alias if desired February 2004 ELEC 101 - Lab 6
  16. 16. Lab 6A Schematic <= Part Reference <= Part Value February 2004 ELEC 101 - Lab 6
  17. 17. Place Net Alias February 2004 ELEC 101 - Lab 6
  18. 18. Circuit for Lab 6A February 2004 ELEC 101 - Lab 6
  19. 19. Lab 6B Drawing the Circuit
  20. 20. Drawing the Circuit •  Place the components at the desired location •  Modify the part values and part references as necessary •  Place wires to complete the circuit •  Place at least 1 ground named 0 •  If necessary, place a Net Alias at desired nodes February 2004 ELEC 101 - Lab 6
  21. 21. Place the Parts February 2004 ELEC 101 - Lab 6
  22. 22. Modify Part References and Values If desired, reposition the part references and values to make the schematic neat. February 2004 ELEC 101 - Lab 6
  23. 23. Lab 6B Final Circuit February 2004 ELEC 101 - Lab 6
  24. 24. Lab 6C Complex Circuits with Crossovers
  25. 25. New Parts Used in the Drawing
  26. 26. AC Sine Sources February 2004 ELEC 101 - Lab 6
  27. 27. NPN Transistor Q2N2222A Model Parameters .model Q2N2222 NPN(Is=35f Xti=3 Eg=1.11 Vaf=100 Bf=250 Ne=1.5 + Ise=1.2f Ikf=.1 Xtb=2 Br=6 Nc=2 Isc=.1f Ikr=1000 Rc=20 + Cjc=20p Mjc=.33 Vjc=.75 Fc=.5 Cje=35p Mje=.33 Vje=.75 + Tr=13n Tf=530p Itf=.6 Vtf=1.7 Xtf=3 Rb=100) February 2004 ELEC 101 - Lab 6
  28. 28. Capacitor February 2004 ELEC 101 - Lab 6
  29. 29. VCC Bar February 2004 ELEC 101 - Lab 6
  30. 30. Two types of Crossovers When you draw a wire that crosses over another, you must pay particular attention at the junction so the schematic is drawn correctly. The presence of a dot denotes a node February 2004 ELEC 101 - Lab 6
  31. 31. Make sure there is no dot at the crossover February 2004 ELEC 101 - Lab 6
  32. 32. Circuit for Lab 6C February 2004 ELEC 101 - Lab 6
  33. 33. Modifying the Q1 Model CL on Q1. CR and CL on Edit PSpice Model. CL in right window of the Model Editor, press CTRL HOME The cursor should move to the beginning of the model statement. Type an asterisk followed by your last name. February 2004 ELEC 101 - Lab 6
  34. 34. Circuits for Submission
  35. 35. Circuit for Lab 6A February 2004 ELEC 101 - Lab 6
  36. 36. Circuit for Lab 6B February 2004 ELEC 101 - Lab 6
  37. 37. Circuit for Lab 6C February 2004 ELEC 101 - Lab 6
  38. 38. Model Statement for Lab 6C *Your_Last_Name .model Q2N2222 NPN(Is=35f Xti=3 Eg=1.11 Vaf=100 Bf=250 Ne=1.5 + Ise=1.2f Ikf=.1 Xtb=2 Br=6 Nc=2 Isc=.1f Ikr=1000 Rc=20 + Cjc=20p Mjc=.33 Vjc=.75 Fc=.5 Cje=35p Mje=.33 Vje=.75 + Tr=13n Tf=530p Itf=.6 Vtf=1.7 Xtf=3 Rb=100) * National pid=19 case=TO18 * 88-09-07 bam creation February 2004 ELEC 101 - Lab 6
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