Procedure for creating schematic diagram and simulating it
Open EDWinXP from Start →Programs → EDWinXP - Main
Click on File → New project for starting a new project
Invoke the Schematic editor by double clicking the Project → Page (Mainpage)

Steps for simulation
Ø  Placing the components
Ø  Wiring the components
Ø  Set the instance parameters for all components (component value)
Ø  Feeding input signals                             
Ø  Place wave form markers / probes for viewing the output
Ø  Run simulation with suitable time step and time limit

EDSpice simulation
Select the EDSPICE simulator from Preferences→ EDSpice simulator
Steps i & ii should be completed before starting the simulation 

To simulate the RC coupled amplifier.

Components required
Transistor – BC107A (1), Resistor – RC05 (5), Capacitor – CK05 (2), CASE-AA100 (1), AC Voltage Source – VGEN (1), DC Voltage Source – VDC (1), Ground – SPL0 (2)

Circuit Diagram


1)      Loading/Placing of components

Components can be loaded in the schematic page by selecting Tools→ Components →Add components to the circuit (first function tool) →Add components by name (third option tool)
Enter the part name in the input box & click Accept
Components are created in unlimited repeat mode, use ESC key to end the component repeat.
The components can be placed in the grids with 100 mils (.1”) and snap of 50 mils (.05”) in the required position by relocation. For relocating a placed component, Tools→ Components →Relocate component, click on the component which have to be relocated and place it on the required position. Press Redraw button for refreshing the page if necessary.
# It is possible to use the customized keyboard keys for easy placement of components
Say press R for resistor, C for capacitor, Q for transistor, V for voltage generator, G for ground etc

2)      Routing Connections

The connection between components can be made by Tools → Connections → Connect components (First Function tool) {Connect the wires from pin to pin according to the circuit diagram.} .Press F4 or keyboard END key for ending the connection and Esc button for cancel the connection. 
Note: The logical connections are made only when the node connections are established.

# Do not rename the ground net SPL0 to other names like Ground, GND etc.
# Do not rename SPL1 to other names like Supply, VCC etc.
# Select Tools→ Connections→ Connection properties→ Click on any connection and name it as required. Assign net names for connections wherever necessary.

3)      Simulation
Draw the circuit diagram after loading components from library. Assign net names for connections wherever necessary. Preprocess the circuit by invoking Simulation → Preprocess. Place waveform markers on input and output nodes. For placing waveform markers, select Tools → Instruments → set wave form Contents → Voltage waveform → Click on the required net and place the waveform marker.

To proceed with the simulation, the steps are as follows.

Select ToolsComponentsComponent properties Change simulation parameters → Click on the required component and change its values.

The values to be provided to the components are

Transistor        : BC107A (Click on the Set up Model of the Model Type. Click on Accept to get the default values assigned)
Resistors          : R1 = 47k, R2 = 10k, RC = 2.2k, RE = 680 Ohm, RL = 820 Ohm              
Capacitors       : CC1 = 15µF, CC2 = 10µF, CE = 22µF
VDC/1            (+Vcc) : 12V
VGEN             : Select the source function as SIN and set its Properties as follows
VA (Amplitude)         : 10mV
FREQ (Frequency)     : 1kHz


Select Simulation → Analysis

Transient Analysis

Transient analysis is used to view input and output with respect to time.
  1. Select Simulation → Analysis.
  2. Select Transient Analysis from the tree view.
3.      Expand Transient Analysis and select Waveform Viewer.
4.      Click on the As Marked button and then on Accept.
  1. Click on the Transient Analysis
  2. Enter the values as
                        Step                 : 10µ
                        Final time        : 10m
                        Start time        : 0

  1. Choose Waveform in Results.
  2. Click Accept button after entering the values.
  3. Click Run button to start simulation.

Small Signal AC Analysis

This analysis is used to obtain the small signal AC behaviour of the circuit.
  1. Select Simulation → Analysis.
  2. Select Small Signal AC Analysis from the tree view.
3.      Expand Transient Analysis and select Waveform Viewer.
4.      Select the required Complex values and then click on Accept.

  1. Enter the values for the Small-Signal AC Analysis as
Total points                 : 100
Start frequency           : 10 Hz
End frequency                        : 10G

  1. Select Waveform for displaying the output.
  2. Click Accept button after entering the values to automatically switch to Analysis.
  3. Click Run  button to start simulation