Dr.

Le Trong Nhan
 Contents

Chapter 1. First Project on PSpice 7

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 PSpice installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 Create a project on PSpice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4 Design a circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5 Create a simulation profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6 Exercise and Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.1 Exercise 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.1.1 Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.1.2 Simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.2 Exercise 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.2.1 Rearrange the circuit . . . . . . . . . . . . . . . . . . . . . . . . 17
6.2.2 Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.2.3 Simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.3 Exercise 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.3.1 Rearrange the circuit . . . . . . . . . . . . . . . . . . . . . . . . 19
6.3.2 Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.3.3 Simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.4 Exercise 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.4.1 Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.4.2 Simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.5 Exercise 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.5.1 Simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.6 Exercise 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.6.1 Circuit transformation . . . . . . . . . . . . . . . . . . . . . . . 23
6.6.2 Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.6.3 Simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.7 Exercise 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.7.1 Circuit transformation . . . . . . . . . . . . . . . . . . . . . . . 25
6.7.2 Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.7.3 Simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.8 Exercise 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6.8.1 Identify the unknown elements . . . . . . . . . . . . . . . . . 27
6.8.2 Redraw the circuit for simulation . . . . . . . . . . . . . . . . 27
6.9 Exercise 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.9.1 Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.9.2 Simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.10 Exercise 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Electronic Device Component Page 5

Chapter 2. DC Sweep Analysis 31
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
2 Create Project and design as provided schematic to analyse DC Sweep . . . 33
3 Create and configure a DC sweep simulation profile . . . . . . . . . . . . . . 33
4 Run the simulation and configure axes to analyse . . . . . . . . . . . . . . . . 34
5 Exercise and Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5.1 Exercise 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Page 6 HCMUT - Computer Engineering

CHAPTER 1

First Project on PSpice

1 Introduction
PSpice for TI is a design and simulation environment that helps evaluate functionality of
analog circuits. This full-featured, design and simulation suite uses an analog analysis en-
gine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model
libraries in the industry, spanning our analog and power portfolio, as well as select analog
behavioral models.

The PSpice for TI design and simulation environment allows you to simulate complex
mixed-signal designs with its built-in library. Create complete end equipment designs
and prototype your solutions before you commit to layout and fabrication, reducing time
to market and development cost.

Within the PSpice for TI design and simulation tool, you can search for TI devices, explore
the portfolio, open test benches and simulate your design to further analyze the selected
device. You can also run co-simulation of multiple TI devices to better represent your sys-
tem.

In addition to a full library of preloaded models, you can easily access the latest technical
collateral for TI devices within the PSPICE-FOR-TI tool. After you have verified that you
have the correct device for your application, you can access the TI store to purchase the
product. Using PSpice for TI, you have access to tools to address your simulation needs
as you progress through the design cycle, from circuit exploration to design development
and verification. Available at no cost, it is easy to get started.

A primary purpose of this lab is for you to become familiar with the use of PSpice and to
learn to use it to assist you in the analysis of circuits (e.g. double check the results with
your exercise). The software is required to install in your computer. Moreover, it is your
responsibility to learn its use in a more detailed way since you will be using it along the
course of this semester and in the future. The targets in the first manual are summarized
as follows:

• PSpice installation on Windows OS

• Create a project on PSpice

• Create a bias analysis profile

• Run the simulation and obtain results

Page 8 HCMUT - Computer Engineering

2 PSpice installation
The homepage to install this tool is located at https://www.ti.com/tool/PSPICE-FOR-TI.

Figure 1.1: Homepage to download PSpice

By clicking on the Download button, the website is navigated as follows:

Figure 1.2: Request information for downloading

Basically, you need to login before requesting a setup file. Please follow the manuals from
the website to accomplish this process. An email with an access key will be sent to your
account to activate the PSpice software.

3 Create a project on PSpice

Step 1: Launch PSpice for TI from windows start menu.

Figure 1.3: Create a new project on PSpice

From menu File, select New, then select Project.

Step 2: Create an empty project as follows.

Electronic Device Component Page 9

 Figure 1.4: Provide the name, location and select a blank project

In the second dialog, please select Create a blank project. An empty project is created
and the next UI is displayed as follow.

Figure 1.5: An empty project is created on PSpice

4 Design a circuit
Step 1: Double click on the Resistor in the device list and then move the mouse to the
schematic design page. This device is in the Favourite library in default. While moving,
press R to rotate the device before placing it (by left-mouse click), as follow:

Page 10 HCMUT - Computer Engineering

 Figure 1.6: Place a resistor in PSpice

Step 2: Double click on the value of the resistor, which is 1k in default, in order to change
its resistance.

Figure 1.7: Assign the resistance

If the resistance is Ohm, no unit is required in the Value field. Repeat the first 2 steps to
finalize all resistors in the circuit.

Figure 1.8: Place other resistors in PSpice

Electronic Device Component Page 11

Some hot keys including Ctrl + C and Ctrl + V can be used to copy an old device.

Step 3: In order to place a voltage supple, find the component named VDC (DC Voltage
Source) in the favourite list, or filter it on the search area. Double click on the voltage
supply and change to a desired value. The result after this step is expected as figure bellow.

Figure 1.9: Place the power supply using VDC component

Step 4: Wire all components by selecting the Wire command on the right panel (hot key
is W).

Figure 1.10: Wire the whole circuit

By clicking a start point and an end point, a wire is placed. In order to delete, select the
wire and press Delete. The picture of the circuit after this step is depicted as follow.

Page 12 HCMUT - Computer Engineering

 Figure 1.11: Finish all wire in the circuit

Step 5: Place a Ground symbol. This step is very important to analyze the voltage in a
circuit as a reference voltage (0V) is required. The ground symbol is available on the right
panel of the software.

Figure 1.12: Add a ground symbol to the circuit

Wiring the ground to a point in the circuit, the final result should be like the figure bellow.

Figure 1.13: A ground point is added to the circuit

Electronic Device Component Page 13

5 Create a simulation profile
Before the simulation is started, a simulation profile (or the simulation configuration) is
required. From menu PSpice, select New Simulation Profile as follow:

Figure 1.14: Create a simulation profile

When the simulation setting dialog is appeared, please select the Bias Point for analysis
type.

Figure 1.15: Select Bias Point simulation

In PSpice, the bias point analysis calculates the node voltages and currents through the
devices in the circuit. Bias point analysis also takes into account any voltage sources ap-
plied to the circuit and any initial conditions set on devices or nodes in the circuit.

Finally, click on menu PSpice to select Run, or press F11 to start the simulation. The
simulation results are displayed directly on the circuit as follow:

Figure 1.16: Volate and Current in the whole circuit

Page 14 HCMUT - Computer Engineering

In order to display simulation results, go to menu PSpice, select Bias Point and enable
the information you need. Students are also proposed to double check their solutions
with the simulation results.

6 Exercise and Report

In this section, students are proposed to work in some circuit analysis, mostly based on
resistors. Some explanations are required and will be considered as a part of the report.
Note that the calculation subsection expects to see formulas and equations rather than
only the results.

6.1 Exercise 1
Given the following circuit. Calculate the value of the voltage v 0 and the current i . Then,
simulate the circuit to check it out.

Figure 1.17: Find the voltage and the current in the given circuit using KVL

6.1.1 Calculation

Notes:
Explanations, formulas, and equations are expected rather than only results.

According to the: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

We have the first equation: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (1)

According to the: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

We have the second equation: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (2)

From (1) and (2) we have:

v0 = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

i = ...........................................................................................

Electronic Device Component Page 15

6.1.2 Simulation

Tips:
To get the Voltage Controlled Voltage Source (VCVS) from the PSpice, under the Place
menu, find PSpice Component > Source > Controlled Sources > VCVS.
A circuit used for the simulation in this exercise maybe like this:

Figure 1.18: A circuit containing a Voltage Controlled Voltage Source in PSpice

Simulation result (image):

Page 16 HCMUT - Computer Engineering

6.2 Exercise 2
Given the following circuit, students rearrange the circuit to clarify its serial and/or paral-
lel topology. Then, apply the knowledge you’ve learned to find the equivalent resistance
value between two circuit terminals A and F. Finally, perform the simulation to check if
the current through the whole circuit is correctly calculated.

Figure 1.19: Find the equivalent resistance value between terminals A and F

6.2.1 Rearrange the circuit

Insert the rearranged circuit here. Don’t forget the resistance values and the nodes’ names.

Electronic Device Component Page 17

6.2.2 Calculation

Convention:
The equivalent resistance between the two terminals A and B of a circuit segment contain-
ing only R1, R2, R3, and R4 may be named R AB _1234 .

Notes:
Explanations, formulas, and equations are expected rather than only results.

RC D_3456 = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

RB E = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

R AF = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I AB = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.2.3 Simulation

Simulation result (image):

Page 18 HCMUT - Computer Engineering

6.3 Exercise 3
Given the following circuit, students rearrange the circuit to clarify its serial and/or par-
allel topology. Next, apply the knowledge you’ve learned to find the equivalent resistance
value between two circuit terminals A and F, the voltage values at A, B, C, D, and E. Finally,
perform the simulation to check your calculation.

Figure 1.20: Find the whole-circuit equivalent resistance and the voltages at A, B, C, D,
and E

6.3.1 Rearrange the circuit

Insert the rearranged circuit here. Don’t forget the resistance values and the nodes’ names.

Electronic Device Component Page 19

6.3.2 Calculation

Notes:
Explanations, formulas, and equations are expected rather than only results.

R AF = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

VA = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

VB = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

VC = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

VD = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

VE = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.3.3 Simulation

Simulation result (image):

Page 20 HCMUT - Computer Engineering

6.4 Exercise 4
Given the following circuit, find I 1 , I 2 , I 3 , Va , and Vb . Present your calculation steps and
check them out by performing the simulation.

Figure 1.21: Find I 1 , I 2 , I 3 , Va , and Vb

6.4.1 Calculation

Notes:
Explanations, formulas, and equations are expected rather than only results.

The whole circuit equivalent resistance: R eq = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I1 = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I2 = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I3 = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Va =. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Vb =. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.4.2 Simulation

Simulation result (image):

Electronic Device Component Page 21

6.5 Exercise 5
Given the network as shown below:

Figure 1.22: Select resistor R from the standard resistors list and do the following require-
ment

Notes:
Explanations, formulas, and equations are expected rather than only results.

a. Find the required value for the resistor R.

R = ....................................................................................

b. Use Table 2.1 in the lecture slide to select a standard 10% tolerance resistor for R. R
in the circuit may be a single resistor or a combination of many resistors as long as
these resistors are meet the standard values and are available in the market.

The selected resistor: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

........................................................................................

c. Using the resistor selected in (b), determine the voltage across the 3.9k resistor.

The value of V1 according to the selected resistor R: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

........................................................................................

d. Calculate the percent error in the voltage V1, if the standard resistor selected in (b)
is used.

........................................................................................

e. Determine the power rating for this standard component.

PR = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.5.1 Simulation

Simulation result (image):

Page 22 HCMUT - Computer Engineering

6.6 Exercise 6
Given the following circuit. Apply the knowledge you’ve learned to transform it into an-
other form in which you can find total equivalent resistance R ab more easily. Next, find
the value of the current i through the circuit and perform a simulation to check it out.

Figure 1.23: Transform the circuit, then find the equivalent resistance R ab and the current
i through the circuit.

6.6.1 Circuit transformation

Insert the transformed circuit here.

Electronic Device Component Page 23

Explain any calculations (i.e., write out the formulas you used).

............................................... ...............................................

............................................... ...............................................

............................................... ...............................................

............................................... ...............................................

..............................................................................................

6.6.2 Calculation

Notes:
Explanations, formulas, and equations are expected rather than only results.

R ab = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

i = ...........................................................................................

6.6.3 Simulation

Simulation result (image):

Page 24 HCMUT - Computer Engineering

6.7 Exercise 7
Given the following circuit. Apply the knowledge you’ve learned to transform it into an-
other form in which you can find total equivalent resistance more easily. Next, find the
value of the current I S through the circuit and perform a simulation to check it out.

Figure 1.24: Transform the circuit, then find the equivalent resistance and the current I S
through the circuit.

6.7.1 Circuit transformation

Insert the transformed circuit here.

Electronic Device Component Page 25

Explain any calculations (i.e., write out the formulas you used).

............................................... ...............................................

............................................... ...............................................

............................................... ...............................................

............................................... ...............................................

..............................................................................................

6.7.2 Calculation

Notes:
Explanations, formulas, and equations are expected rather than only results.

R equi v al ent = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

IS = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.7.3 Simulation

Simulation result (image):

Page 26 HCMUT - Computer Engineering

6.8 Exercise 8
Given the following circuit with p 2 , p 3 , and p 4 are absorbing powers of unknown electrical
elements. First, use the knowledge you’ve learned to identify whether they are active or
passive elements (supplying or absorbing power). To an element absorbing power, use a
pure resistor with a proper value as a representative. To a power element, use an ideal DC
voltage source with the corresponding value as a representative. Next, redraw the circuit
and calculate the power that each element absorbs. Note that here we use the passive sign
convention. Then, perform a simulation with the elements determined by the previous
step.

Figure 1.25: Determine the unknown elements and calculate the absorbing power of each

6.8.1 Identify the unknown elements

In Figure 1.25:

p 2 = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −→ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . element

p 3 = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −→ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . element

p 4 = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −→ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . element

6.8.2 Redraw the circuit for simulation

Simulation result (image):

Electronic Device Component Page 27

6.9 Exercise 9
Given the following circuit. Find the voltage v and the current i x . According to the re-
sult, determine the elements whose absorbing power respectively p 1 and p 2 are active or
passive (calculations are required). Note that here we use the passive sign convention.
If an element consumes power, use a pure resistor with an appropriate value as a repre-
sentative. If it is a power supply element, use a corresponding ideal DC voltage source to
represent it. Perform a simulation to check how the circuit works.

Figure 1.26: Find the unknown elements and variables, then check them out by simulation

6.9.1 Calculation

Notes:
Explanations, formulas, and equations are expected rather than only results.

According to the: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

We have:

v =...........................................................................................

ix = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

So, we have:

p 1 = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −→ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . element.

I AB = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I BC = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

p 2 = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −→ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . element.

UC D =. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page 28 HCMUT - Computer Engineering

6.9.2 Simulation

Tips:
To get the Current Controlled Voltage Source (CCVS) from the PSpice, under the Place
menu, find PSpice Component > Source > Controlled Sources > CCVS.

A circuit used for the simulation in this exercise maybe like this:

Figure 1.27: A circuit containing a Current Controlled Voltage Source in PSpice

Simulation result (image):

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6.10 Exercise 10
Given the following circuit. Find the voltage V. You can do this in any way but remember
to explain it in detail. Then simulate the circuit to check the result.

Figure 1.28: Find the voltage V

Answer:

..............................................................................................

............................................... ...............................................

............................................... ...............................................

............................................... ...............................................

............................................... ...............................................

............................................... ...............................................

............................................... ...............................................

............................................... ...............................................

............................................... ...............................................

............................................... ...............................................

............................................... ...............................................

..............................................................................................

Page 30 HCMUT - Computer Engineering

CHAPTER 2

DC Sweep Analysis
1 Introduction
DC Sweep analysis calculates the steady-state voltages and currents when sweeping a
source, model parameter, global parameter, or temperature over a range of values. You
can view the results of a DC sweep analysis in either a text output file or in the graphical
display of the Probe window. The targets are summarized as follows:

• Create Project and design as provided schematic to analyse DC Sweep

• Create and configure a DC sweep simulation profile

• Run the simulation and configure axes to analyse

Page 32 HCMUT - Computer Engineering

2 Create Project and design as provided schematic to anal-
yse DC Sweep
Electronic components are used as follows:

• VDC

• Ground GND

• Diode (Pspice Components –> Diode)

• Resistor

Design your project as provided schematic:

Figure 2.1: DC Sweep Schematic

3 Create and configure a DC sweep simulation profile

Step 1: Create new simulation profile
From menu File, select New, then select Project.
Step 2: Configure DC sweep simulation profile.

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 Figure 2.2: Create a new simulation profile on PSpice

Figure 2.3: Configure DC Sweep parameter for simulation profile

4 Run the simulation and configure axes to analyse

Step 1: Run simulation as normal with simulation profile created above:

Figure 2.4: Run simulation normally, nothing display

Page 34 HCMUT - Computer Engineering

Step 2: Configure axis.
Double click on the X axis to configure axis. Choose Axis Variable...

Figure 2.5: Double click on the Axis

Figure 2.6: Choose Axis Variable...

Find V1(D1) for X axis variable.

Figure 2.7: Choose V1(D1)

for X axis

Step 3: Configure Y Axis

Create new Trace with Trace menu, Add Trace.., then choose I(D1)
Step 4: Read result DC Sweep analysis.

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 Figure 2.8: Confirm V1(D1)
for X axis

Figure 2.9: Add Trace for Y Axis

Figure 2.10: DC Sweep Analysis

Page 36 HCMUT - Computer Engineering

5 Exercise and Report
In this section, students are proposed to work in some circuit analysis, mostly based on
resistors. Some explanations are required and will be considered as a part of the report.

5.1 Exercise 1
Change the value of R1 witch 220 Ohm, 330 Ohm, 1.5k Ohm, 2.2k Ohm.
For each value of R1:

• Run the simulation again and capture the screen

• Add Probe marker to measure I (current), Voltage on R1 and Diode.

• Check View Simulation Output File to check value of I, Voltage on R1 and Diode
(recheck with theory)

Figure 2.11: View Simulation Output File

The solution is hide

Finally, explain the results by presenting mathematical equations.

Electronic Device Component Page 37