Temperature Sweep — Diode I-V Characteristic

Most of the devices used by PSpice can include temperature effects in the model. Most of the semiconductor models provided by Oread include temperature dependence. By default, the passive devices such as resistors, capacitors, and inductors do not include temperature dependence. To make these items include temperature effects, you will need to create models that include temperature effects. The temperature dependence of resistors is discussed in Section 4.G.I. In this section, we will show only how the I-V characteristic of a 1N5401 diode is affected by temperature. The D1N5401 diode model already includes temperature effects so we will not need to modify the model. We will use the standard resistor, which does not include temperature effects. We will continue with the circuit of Section 4.B  

0 Current eouree C Global parameter C Model parameter 

In general, we can run the temperature sweep as either a Parametric Sweep or a Secondary Sweep. However, to generate I-V characteristic curves for different temperatures, we must use the Secondary Sweep. Click on the square D next to the Secondary Sweep selection  

IJTemperafcjre (Sweep) Sava Bias Point Load Bias Point 

We wish to generate three I-V curves, one at -25°C, one at 0°C, and one at 50°C. Select Temperature as the Sweep Variable. We will use the Value list to specify the three temperature values. Click on the circle O next to the text Value list to select the option  

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