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Hi am new to OrCAD and in learning phase. I am just confuse with the input file creation. My question is that:
1) how to make input file?
i go through one simple example from book and try to simulate but it won't work. Is it necessary to build a circuit before writing a input file? or it require simultaneously input file and circuit diagram for simulation.
2) How to number the node?
the input file given in the book is:
** DC Circuit Example ** Circuit Discription VS 1 0 DC 20V IS 0 4 DC 50MA R1 1 2 500 R2 2 5 800 R3 2 3 1 K R4 4 0 200 *Analysis Request** VX 3 0 DC 0V VY 5 4 DC 0V **Outputs Requests** .OP .END
and the steps to run the program is :
1) go to start->PSpice
2)File->New->text file
3) type ur input file
4) save input file with .CIR extension
5) from ''Simulation'' menu go to run <input file>
6) the output file will be automatically be given the extension <input file>.out
7) the simulation results file will have the extension <input file>.dat
i complete upto 4th steps but after that the simulation menu is not available (it is inactive)
iam using OrCAD Capture CIS 16.3 demo
I run some example from book CD with circuit (.DSN extension). It works well and give output waveform perfectly. But there was no input file for the same ckt. So my question is why do we need input file if we can run simulation creating a circuit diagram only?
Please help me ....iam really stuck with this input file.
Thnx.
There is no real difference in the simulation and results that you get whether you start from a graphical circuit or a text netlist. The primary differences are that drawing the schematic allows other users to understand the structure of the circuit, this is probably less than clear from just a text netlist; modifying the circuit graphically is easier and, potentially, less error prone than modifying the text netlist; you can add / remove probes from the graphical circuit and the Probe window updates with the node results, using a text netlist you have to use Trace>Add Trace, similar effect, and you can also do this from a graphical circuit simulation, but, perhaps, not quite as intuitive as manipluating probes in the schematic.