APPLICATION OF PROTEUS
PROFESIONAL IN CIRCUIT SIMULATION
AND PCB LAYOUT
Prepared by: Puziah Binti Yahaya
J
K
E
OVERVIEW
1. SCHEMATIC DIAGRAM
2. CIRCUIT SIMULATION
3. PCB LAYOUT
INTRODUCTION
• Proteus (PROcesses and Transactions Editable by
USers) is software for microprocessor simulation,
schematic capture and printed circuit board
(PCB) design.
• Proteus software package splits into four part :
• ISIS – Intelligent Schematic Input System (schematic capture) – for
drawing circuit diagrams etc.
• ARES – Advanced Routing and Editing Software – for producing PCB
layout drawings.
• PROSPICE Mixed mode SPICE simulation – industry standard SPICE3F5
simulator combined with a digital simulator
• VSM – Virtual System Modelling – lets cosimulate embedded software
for popular micro-controllers alongside hardware design
LET US BEGIN…..
1. Click on the desktop icon of Proteus 8.
2. Now click on “New Project’ option and then a pop-up window will be
opened in which you have to name the project and choose the directory to save
the project. It will be saved automatically with “ .pdsprj” extension.
3. The next step is to select the schematic layout from the categories and
“Default” will be A4 size.
4. In next stage, you can also create PCB layout in the next step by selecting it
and choosing the required layout
5. Now you have to choose either to create firmware project or not create
firmware project. If you want to create a firmware project, you have to choose
the installed compiler and the microcontroller you are going to choose.
6. Then click finish.
7. Now you can see the two tabs: Schematic capture and PCB layout
SCHEMATIC DIAGRAM
Example: Panic Alarm Button Using 555 Timer IC
schematic diagram
TBLOCK-i2
used as battery
terminal on PCB
STEPS TO DRAW
SCHEMATIC DIAGRAM
1. Pick component
2. Place component
3. Drawing lines
4. Power lines
PICK COMPONENT
1. Click ‘Component Mode’
2. Click ’P’
1
2
CONT…
1. Type a keyword of component
(i.e. Res for Resistor)
2. Press ‘ENTER’
3. Double click at
required component
CONT…
Selected component will appear in
Object/Device Window
PCB Preview Window displays
PCB package or footprint for
selected component
CONT…
• Repeat process for other
components used in the
circuit
• All selected components are
now in Object/Devices
Window
PLACE COMPONENT
1. Select component
from object window
•
This component is displayed
on Overview Window
•
Orientation of component
can also be done here (i.e.
rotate )
CONT…
2. Position mouse pointer on screen and ‘click left’
• Component selected appears on the screen
3. ‘Click left’ if confirm
or ‘Click Right’
otherwise
CONT…
3. Components, once
placed, could be:
•
•
•
•
Moved
Labeled
Deleted
Rotated
‘Click right’ on
component
DRAWING LINES
• Place all components.
• To connect circuit components, place ‘pointer’ near
tip of component terminal.
• Notice a
appears. ‘Click left’, move pointer to next
terminal tip, a line follows the pointer and ‘clicking left’
to connect the two terminals together.
POWER LINES
• Connect all ground points to the ground symbol and
Vcc points to the power symbol.
• These symbols are found in ‘Terminal Modes’
Terminal Modes
SIMULATION
• Before simulation, there are some components need
to be ’Exclude from Simulation’ (i.e. TBLOCK i2)
1. Double click
on TBLOCK-i2
2. Tick at
exclude from
simulation
EXAMPLE OF CIRCUIT
SIMULATION
1. Click PLAY to
start simulation
PCB LAYOUT
• Before convert to
PCB, make sure that:
a. All component MUST
have PCB Package
b. Some components
need to be exclude
from PCB layout (i.e.
battery)
c. Save the schematic
file
PCB PACKAGE
• Most components have PCB Package (footprint)
except for ‘active component’ (i.e. LED)
• Double click on component to check the PCB Package
• Example 1:
Component which has a PCB Package
PCB Package for
Resistor
CONT.
• Example 2:
Component which has no PCB Package
LED has no
PCB Package
STEPS TO ADD PCB PACKAGE
• Double click on the component.
• Edit component window will appear.
1. If PCB Package
is not specified,
Click on
CONT...
2. Click
Miscellaneous
3. Double Click on the
equavalent component
STEPS TO CONVERT
SCHEMATIC TO PCB LAYOUT
1. Place and route for PCB
Design
2. PCB board setting
a. Select PCB shape
b. Assign PCB layer
c. Draw PCB board edge
3. Place component
4. Setting rule
5. Routing
1. PLACE AND ROUTE FOR PCB DESIGN
1. Click on
PCB layout
2a. SELECT PCB SHAPE
Select PCB shape 2D Graphics box
2b. ASSIGN PCB LAYER
Click on Layer
selector
Select Board
Edge
CONT…
Notice that there are many colors for
different layers. Each color is dedicated to
specific layer.
For example:
Red – Top Copper
Blue – Bottom copper
Cyan – Top silk (component side)
Yellow – Board edge
Refer to Layer Selector
2c. DRAW PCB BOARD EDGE
1. Press key ‘M’ or ‘m’ to change the unit between
‘th’ to ‘mm’
Default unit is in ‘th’ = 1/1000 inch = mil (Metric
unit)
2. Press key ‘O’ or ‘o’ (origin) to start drawing at
coordinate (0,0)
(can also start anywhere by placing the cursor
at desired point)
Drag cursor until
required dimension
is found (i.e.
100mmX100mm )
by observing the
Width and Height
bar, then ’Click Left’
Blue dot is Origin
(coordinate (0,0)
PCB dimension
100mm X 100mm
3. PLACE COMPONENT
• There are two methods:
a. Automatic
b. manual
3(a) Auto Placer
1. Tools 
Auto placer
2. Make sure all
components in
schematic are
listed here
3. Click OK
Yellow arrow
shows the
recommended
position
•
Rearrange the
components (i.e.
Rotate, Move).
For better position ,
try to shorten the
yellow arrow as
short as possible
3(b) Manual Placer
1. Click on
Component Modes
All components
are listed here
CONT…
2. Select one
component
3. ’Click left’ on the
screen within yellow
line
4. Repeat the process for the
rest of components
Red circle means the components
are too closed to each other –
known as DRC error
4. SETTING RULE
Tools 
Design Rule
Manager
1. Design
Rules
Pad-trace Clearance = 30th
Trace-trace Clearance = 30th
POWER
Pair1
(Horz)=None
2. Net
Classes
Trace Style = T40
Pair1 (Vert)
=Bottom Copper
***Pair1  for one layer only
SIGNAL
2. Net
Classes
None
Trace Style = T30
Bottom
Copper
5. ROUTING
• There are two methods:
a. Automatic
b. manual
7(a) Automatic Routing
Tools 
Auto Router
or Click
this icon
Click on
Begin Routing
Successful
(No green lines)
• Green line (incomplete routing) - means the track cannot go
through because of components are too close or too many
CORRECTING ERROR AFTER ROUTING
1. Undo (to unroute) OR
2. Rearrange the components:
a) Delete track by :
i.
disable icon Component Mode (color of this icon will
change from green to gray), then select Track Mode
ii.
- clicking on the track (for single track) or
- select all ( for all tracks)
Press key ‘Delete’
iii.
b) Move component and repeat routing process
7(b) Manual Routing
Select Track Mode
Select size of track and drag
cursor to connect the
components
ADD TEXT
Select
Text Mode
Text will be added at the bottom
layer if Bottom Copper is selected
(Blue color)
CONT…
Type required text
(i.e. Name of circuit)
PCB size can be
adjusted by dragging
the cursor
The text is automatically
mirrored
OUTPUT
1.
2.
3.
4.
3D Visualization
Convert to Gerber
Gerber View
Print
OUTPUT – 3D
Output  3D Visualization
OUTPUT - GERBER
Output  Gerber Output
Choose one layer only i.e. Bottom
Normal  positive board
Mirror  negative board
OUTPUT – GERBER VIEW
Output  Gerber View
Double click on the particular
updated gerber file
CONT…
CONT
Repeat the same process
for other layer i.e. Top
silk – component side
OUTPUT - PRINT
Output  Print
Drag cursor to
move the position
END OF CIRCUIT SIMULATION &
PCB LAYOUT
PREPARED BY :
PUZIAH BINTI YAHAYA
EDITED BY :
SHOKHANA BINTI HAIMIN (APRIL ‘2018)