Plotting Diode Point-Contact with PSPICE for Circuit Analysis

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Dexterous
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Hello i need to show with pspice plot the point-contact of diode.
this is the circuit and the values i need:
Broken image placeholder showing a stylized orange and yellow "TI" logo above the text "Image Not Found" on a dark background.

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the right solution should look like this plot
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but this is the plot i see

Broken-image placeholder showing a blue and gold "TI" logo above the words "Image Not Found" on a dark background.


thx in advance!
 
I'm not too familiar with PSpice's equation plotting details, but I do notice that there is a difference in the format of the expressions that your diagrams show. Do you need the parentheses to make the order of operations clear?

PSpice plot window with two trace panels, each showing a trace expression label and an x-axis from 0V to 0.20V or 0V to 1.0V, with a circled region and a curve on the lower panel.
 
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  • PSpice plot window showing two trace expressions: top, I(D1) = -(V(D1:1)/250)+(5/250) with the 0.10V and 0.20V axis labels circled; bottom, I(D1) = -V(D1:1)/250+5/250 with the 0.5V and 1.0V axis labels circled, and a curve sloping upward to the right.
    Fig3.gif
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im aware to this difference its not the case thx..
 
Okay. I noticed something else... The "good" plot has V(D1:1) on the x-axis. Your plot has V_V1. Presumably that means the good plot is plotting the other quantities against the diode junction voltage, whereas yours is plotting against the swept source voltage value.

You need to figure out how to place the diode voltage on the x-axis of your plot.
 
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yea, the man is right you just need to change your x-variable... go to plot->axis settings->x axis->axis variable and put v(d1:1).
 
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