Abstract
The primary objective of this prelab is to become familiar with the use of PSpice and to learn
how to use it to analyze different types of
... [Show More] circuits. PSpice is a software that allows us to design
and draw circuit, simulate circuits, and analyze simulation results. This part of the lab introduces
some of the simulations that we can run on PSpice such as bias point, AC sweep, DC sweep, and
parametric sweep.
Firstly, the bias point analysis calculates the nodal voltages and currents through the devices in
the circuit. It also takes into consideration any voltage sources applied to the circuit and any
initial conditions in the circuit. Secondly, DC sweep simulation is used for large signal analysis.
It varies a voltage source over a range of voltage in an assigned number of increments in a linear
or logarithmic fashion. Thirdly, AC sweep calculates the small-signal response of the circuit to a
combination of inputs by transforming it around the bias point and treat it as a linear circuit. By
default, an AC sweep simulation sweeps every AC source in the circuit together through a
specified range of frequencies in a linear or logarithmic manner. Lastly, parametric sweep uses
the time domain (transient) simulation. This type of analysis is probably the most popular
analysis. In this mode, one can plot the various outputs as a function of time.
Introduction
The purpose of this pre-lab is to learn how to design and analyze circuits on PSpice software.
The first part was about performing a bias point analysis on a circuit that consists of a voltage
source, current source, and two resistors. The second part walked me through how to analyze a
circuit using DC sweep and creating a I-V characteristic plot. While in the third section, I learned
how to perform AC sweep analysis on a circuit and find the -3dB point. Lastly, I learned how to
perform a time domain transient analysis using the parametric sweep on the circuit. [Show Less]