Secondary Sweep — Family of Transfer Curves

In the previous section, the question may arise as to how the Zener breakdown voltage affects the transfer curve. We will assume that you have followed the procedure of the previous section and have already set up the DC Sweep. 

We will now set up a Secondary Sweep to sweep the breakdown voltage of the Zener diode. First we must look at 

This screen shows that the model name is D1N4734A. The parameter for breakdown voltage is Bv and cannot be seen on the screen. Scroll the text window to the right to see more of the model  

We see that the breakdown voltage is 5.6 volts. Select File and then Exit to close the model editor and return to Capture. Do not save the changes if asked. 

Since we are working with the previous example, a simulation profile has already been created and we just need to modify it. To edit the existing profile, select PSpice and then Edit Simulation Profile  

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