Secondary Sweep—BJT Characteristic Curves

The nested DC Sweep can be used to generate characteristic curves for transistors. We will illustrate generating these curves using a BJT. Wire the circuit below  

We need to set up the Primary DC Sweep and the Secondary Sweep. Select PSpice and then New Simulation Profile from the Capture menus, enter a name for the profile, and click the Create button. Select the DC Sweep Analysis type and fill in the Primary Sweep as shown  

The dialog box lists the settings for the Primary DC Sweep. The Primary Sweep sweeps VCE from 0 volts to 15 volts in 0.01 volt increments. The Sweep type is linear, which means that the voltage points are equally spaced. 

we need to set up the Secondary Sweep. Click the LEFT mouse button on the box D next to Secondary Sweep to select the option. The dialog box will change to display the settings for the Secondary Sweep. We would like to sweep the base current from 0 mA to 1 mA in 100 pA increments. Fill in the dialog box as shown  

GanataJ Analysis Irxdud Fii , Utxane, ] Stmului Opfcont Dais CoNecten Prat Vrfndow  

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