Regular and Zener Diode Characteristics
This write-up describes how to use ORCAD to draw circuits for a regular or a zener diode, apply the simulation profile and find the characteristic graphs for them.
To start, create the following circuit for a regular diode, 1N4002.
Figure 1 - Circuit to Investigate the Characteristics oa a Diode
The current marker makes it easier to achieve the desired results. In order to run the simulation, create a new simulation profile similar to the one in figure 2. The range of voltage has to be wide enough to cover the whole spectrum of diode current.
Figure 2 - Simulation Profile Settings for the Dide Characteristics
The result off of this simulation is a graph of ID vs. the voltage source.
The process for a zener diode is similar to that of the regular diode. Here are the figures to illustrate this point:
Figure 3 - Zener Diode Circuit to Investigate a Zener Diode Characteristics
Figure 4 - Simulation Profile Settings for a Zener Diode