In this case, a loaded quality factor q l of the seriestuned circuit of about 10 will give a good sinusoidal shape to the load current. Before examining the driven rlc circuit, lets first consider the simple cases where only one circuit element a resistor, an inductor or a capacitor is connected to a sinusoidal voltage source. In the limit r 0 the rlc circuit reduces to the lossless lc circuit shown on figure 3. The signal is supposed to be 10 v pp, 500hz square wave it is supposed to be something like this. Resonant circuits an overview sciencedirect topics. To simulate the dc network with sub circuit using pspice. However, the analysis of a parallel rlc circuits can be a little more mathematically difficult than for series rlc circuits so in this. Download pspice free trial now to see how pspice can help improve productivity, yield and reliability of your circuits.
Especially appropriate for those approaching electrical engineering concepts, computers, and pspice for the first time, this text introduces circuit topics and relevant pspice features together using a highly effective complimentary approach. Pspice tutorial create a new project and select analog or mixed ad. Prof saeid moslehpour university of hartford chapter 10 download files. Capture, pspice, sourcelink online customer support, specctra, spectre. The circuit below is drawn and the simulation is as above. Use pspice to determine i 1, i 2, i 3, and vo in figure 1 at f 1khz and f 10khz. Partsim is a free and easy to use circuit simulator that includes a full spice simulation engine, webbased schematic capture tool, a graphical waveform viewer that runs in your web browser. This tutorial is about a parallel rlc circuit attached to a dcvoltage supply. Get your products to market faster with pspice pspice simulation technology combines industryleading, native analog and mixedsignal engines to deliver a complete circuit simulation and verification solution. The software is provided free, and this made possible by the dropbox ability to give free bandwidth that is sufficient for file sharing. In this video, i show you how to use pspice orcad to simulate dc rlc circuit example. Pspice simulation of transient response of rlc circuits. Macspice is a circuit simulation software for the mac devices using the intel processors. Basic screen there are three windows that are opened.
This manual is written specifically for beginning students, and gives stepbystep instructions for using pspice. If you find yourself in the posture of not understanding a bit of what your professor is teaching you in circuit theory class. Provides practical examples of circuit design and analysis using pspice, matlab, and the smith chart this book presents the three technologies used to deal with electronic circuits. Rlc natural response variations article khan academy. Work with circuit design projects by designing analog and digital models, then simulating their work to check and adjust functionality. Included in the download of ltspice are macromodels for a majority of. Pspice circuit analysis freeware free download pspice. The phase and magnitude resonance phenomenon in a series rlc circuit with classic reactive components. Similarly, if we introduce an inductor in a simple resistive circuit, the output current will be leading the output voltage by 90 degrees. This leading and lagging of current and voltage in case of rc and rl circuits will be explained in this tutorial. The seriestuned circuit, consisting of a capacitor c 0 and an inductor l, must appear inductive at the operating frequency. Pspice circuit analysis freeware simple circuit analysis package v. Be able to determine the responses both natural and transient of second order circuits with op amps. Source, capacitor, resistance and inductor in that order.
Write another function to calculate the total input current of series rlc tank circuit as shown in figure 3. Rlc circuits 2 if the resistance in the circuit is small, the free oscillations are of the form q c q c0 e. And in the case of an rc circuit, it represents charge thats stored on. All the initial variables and values are remained the same. As a result, a 20w, 500khz bipolar power amplifier was built having a collector. A new window pop up with the pspice project type, select create a blank project and click ok. The natural response is what happens when you put some initial energy into the circuit. Whether youre a student or professional, spice will allow you to predict the behavior of your electronic circuits accurately. In this tutorial, we are using the student version 9. Pspice student is an analog circuit simulator that was specially designed for electrical engineering students in need of simulating circuits and of solving circuitsrelated calculations. A compatible approach to subject matter and the pspice programfollows the topical outline of the traditional curricula. Calculate i 1, i 2, i 3 and vo for the circuit shown in figure 1 for f 1khz and f 10khz. Be able to determine the step responses of parallel and series rlc circuits 3.
Frequency sweep simulation for parallel rlc ac circuit using. The software offers support for both 32bit and 64bit configuration. Note, currents are measured indirectly by measuring the voltage across an. Supplies students with relevant pspice commands for every new circuit concept. The method used to plot any voltage or current versus time in a second order circuit is the same as that used for a first order circuit.
A visual tutorial for schematics njit ece undergraduate. And in particular, in this video, were going to talk about the natural response of an rc circuit. The parallel rlc circuit is the exact opposite to the series circuit we looked at in the previous tutorial although some of the previous concepts and equations still apply. Pspice for linear circuits, second edition provides an introduction to these programs and describes ways in which they can be profitably used in an introductory course on electric circuits. The basics of spice and how its integrated into autodesk eagle. In the limit r 0 the rlc circuit reduces to the lossless lc circuit shown on figure 12. A pulse is injected in the crystal circuit or initial condition specified on capacitors to accelerate the amplitude build up and speed up simulation. Next, plot the total input of the series resonant rlc tank circuit.
Monssen, orcad pspice with circuit analysis, 3rd edition. Again all the initial variables and values are remain the same. Powerful online circuit simulator and schematic editor. It gives students, researchers, and practicing engineers the necessary design and modelling tools for validating electronic design concepts involving bipolar junction. Pspice ad this tutorial is about a parallel rlc circuit attached to a dcvoltage supply. Pspice and orcad capture are computer programs that simulate electric circuits. Go to orcads website to request the cd or download the software directly. Whenever we want to plot a voltage or current as a function. The output of input impedance of series rlc tank circuit.
Pspice calculates all of the node voltages and branch currents at each time step. The incredible ibex defies gravity and climbs a dam forces of nature with brian cox bbc duration. Once you have created your circuit and assigned values to. At dc, the capacitor acts as open circuit, and the inductor acts as short circuit. Parallel rlc circuit and rlc parallel circuit analysis. Construct the circuit shown in figure 1 and measure i 1, i 2, i 3 and vo. Pspice examples frequency responses of and simple lowpass filter and bandpass filter my task is to draw two filters in pspice and do simulations to get the frequency responses both magnitude and phase responses. In this tutorial you will learn how to construct a circuit using orcad capture cis lite. When the applet starts up you will see an animated schematic of a simple lrc circuit. However, we must indicate what voltages or currents to be plotted by inserting voltage or current probes into the circuit. Similarly, v crms is the rms voltage across the capacitor. I am trying to simulate a rl circuit in dc with ltspice as follows. The utility features multiple templates for different circuit types along with a set of tools for customizing layouts.
Electronic circuits with matlab, pspice, and smith chart. Whether youre prototyping simple circuits, designing complex systems, or validating component yield and reliability, orcad pspice technology provides. However, when i put them in this order in lt spice, the response is nothing like a sine wave slowly decaying. The stored energy in c or l will force the current v t vc once the switch sw is closed, after some oscillatory period, current and. Comprehensive and substantive in coverage, yet well organized, concise, and accessible, it allows users to gain handson experience in applying.
For the series rlc circuit shown, use pspice, and ac analysis to sweep the frequency from 10hz to 100khz over a decade variation with 200 points per decade. In spice, circuit information such as the names and values of resistors and sources and how they were connected is input using. The rlc natural response falls into three categories. Electric circuit analysis is a foundation for all hardware courses taken by students in electrical engineering and allied fields, such as electronics, computer hardware, communications and control systems, and electric power. For the simple parallel rlc circuit shown in gure 5 this is just equal to the rms supply voltage but for the series rlc. So not about a typical resonant circuit, which is connected to a sinewave voltagesource, but a resonant circuit, which is initially loaded and left to itself. How to simulate rlc circuits at dc using orcad pspice.