PSpice for TI: AC Sweep Analysis
In less than 2 minutes, this video covers the simple steps to conduct AC sweep analysis and to display a bode plot that represents the gain and phase of a circuit within the PSpice for TI tool. You will also learn how to enable noise analysis including device noise, total output and equivalent input noise. Tips for using advanced markers to measure DB gain and phase of voltage are also covered.
Resources
In this video, you will learn how to perform AC sweep analysis as well as display a Bode plot that represents the gain and phase of a circuit as a function of frequency in PSpice. An example of a clipper circuit will be used.
The AC source will be swept over a range of frequencies to check the response of the circuit using a Bode plot. Create a new simulation profile called "AC sweep." Under analysis type, select AC Sweep from the dropdown list.
Set the AC sweep type such that it logarithmically increases from 10 to 100 megahertz in 11 steps. You can enable noise analysis if you want to calculate the device noise, total output, and equivalent input noise. Click OK to save the simulation settings.
There is a predefined window template for Bode plot in PSpice which can be accessed via the PSpice menu. Select Bode Plot, Dual Y-axis from the list. This will plot the gain and phase graph on different y-axis after the simulation is run.
Place the plot window template marker on the output now. Run the PSpice simulation. Gain and phase waveforms of the clipper circuit are displayed showing the frequency response of the circuit.
You can also use a set of advance markers in PSpice to plot dB gain and phase of circuit. To access them, go to PSpice in the menu, Markers, Advanced, Select dB Magnitude of Voltage, and place the marker on the output now. You can add an advance marker to measure the phase of voltage, too.
Now you have successfully performed an AC sweep analysis and displayed a Bode plot with PSpice.
This video is part of a series
-
Explore PSpice® for TI design and simulation tool
video-playlist (12 videos)