In sweep type, choose linear, start value 1, end value 10, increment 1. Download orcad free trial now to have a full evaluation of all orcad tools with no functionality limitations. Pspice will change the voltage source v1 from 1 to 10 in linear increment of 1. This is an overview of ac and dc simulation, as well as how to analyze output signals. Pspice tutorial wilfrid laurier university physics labs. In this article, we will focus on how to set up a independent voltage source for analysis. Simulation software allows for modeling of circuit operation and is an invaluable analysis tool. Dec 29, 2012 hi everyone, i recently tried to install pspice on my mac following an older thread from about four years ago. Notes for orcad pspice university of california, san diego. For example r9 5 2 15k means that resistor r9 lies between node 5 and node 2, and has a value of 15000 ohms. Current dependent voltage source in ltspice youtube.
If the input signal is given as a voltage source, then data trace vinoise is the inputreferred noise voltage density. Ltspice mac osx create a circuit with dependent sources. Temp temperature a10 sources transient source descriptions a24 line comment lines that start with a are comment lines. Since the amplitude of the voltage is 10 and the amplitude of the current is 4ma, the current looks like a flat line. Ltspice tutorial wilfrid laurier university physics labs. Macspice then builds a numerical model of the circuit and analyses this.
It is likely that the old url for this pspice tutorial will disappear on august 31, 2015. Ltspice tutorial ep7 dependent voltage and current sources duration. In sweep variable, choose voltage source set name to v1 the name of the voltage source in your schematic. The parameters start, stop and incr, are the starting, final 4 aimspice reference manual, v4. Browse cadence pspice model library cadence pspice technology offers more than 33,000 models covering various types of devices that are included in the pspice software. When working with surge stoppers or hot swap controllers, occasionally there is a need to simulate a circuits behavior with a specified voltage or current. In ltspice, the humble voltage source rarely gets to demonstrate its. Ltspice tips current dependent current source motley. In pspice you may use a voltage source with value of zero in series with any other element to act as an ammeter. Electronic circuit simulation uses mathematical models to replicate the behavior of an actual electronic device or circuit. Pspice ad reference guide montana state university. Pspice gives a quick way of calculating these values. Ideal independent voltage sources we begin with the dc version of the ideal independent voltage source. This netlist is a list of components and the nodes they connect to.
Pspice is not available for mac but there are some alternatives that runs on macos with similar functionality. This video shows how to implement dependent sources in pspice software. The options which show up in the window will change as the function selected changes. Pspice reads them in but does not execute the line. Basic circuit simulation with ltspice technical articles. Cadence pspice technology offers more than 33,000 models covering various types of devices that. Using timedependent exponential sources to model transients. Apr 26, 2019 pspice is not available for mac but there are some alternatives that runs on macos with similar functionality. Orcad free trialorcad trial provides full version of the latest release of orcad electronic design software solutions for free for a limited time, including orcad capture cis, orcad pspice designer, orcad pcb designer professional, orcad sigrity erc, and more. The parameter sn is the name of an independent voltage or current source defined in the circuit. It is known that you can define many voltage and current sources for your design. So far we have covered circuits with resistors and independent sources. Pspice ad reference guide includes pspice ad, pspice ad basics, and pspice product version 10.
The circuit is limited to 64 nodes and 10 transistors. Ltspice guide click on the swcad iii shortcut created by the software installation. The beginning letter of the part name for all versions of the ideal independent voltage. These transients are usually modeled using a double exponential waveform. But sometimes you have measured data from the real word and you want to use them as a source for your pspice simulation. The big disadvantage of this software version is that the circuit simulations are limited. Ltspice voltage controlled voltage source vcvs we have a divideby2 voltage divider followed by the vcvs which multiplies the input voltage, vg with a gain. If that doesnt suit you, our users have ranked 28 alternatives to pspice and ten of them are available for mac so hopefully you can find a suitable replacement. Circuit elements california state polytechnic university. So, if you need to build a more complex circuit, you will have to try another version of pspice. For instance, suppose we wanted to make the voltage source above model. I got as far as extracting the files within my downloads folder using the unarchiver, but im not sure what to do. Anyway, if you were looking for pspice for mac, you can try these applications, as these circuit simulators are also quite handy and have similar functions and features. Ltspice voltage controlled voltage source vcvs we have a divideby2 voltage divider followed by the vcvs which multiplies the input voltage, vg with a gain factor of 10.
For the types of analysis, please see the following article. As for the voltage sources, for this circuit youll want to simply enter dc values. Right clicking on one will bring up the independent voltage source window. A few things to note about the alternating current source, first pspice takes it to be a sine source, so if you want to simulate a cosine wave you need to add or subtract a 90 phase shift. Im trying to simulate a voltage dependent current source in ltspice and i need to have a limited output current. Pspice model library includes parameterized models such as bjts, jfets, mosfets, igbts, scrs, discretes, operational amplifiers, optocouplers, regulators, and pwm controllers from various ic vendors. These include the independent dc and ac voltage and current sources, and the simple voltage or current controlled dependent voltage and current sources. The four types of dependent sources are listed below in table 1 along with their abbreviation, pspice name and library. Ltspice is a versatile, accurate, and free circuit simulator available for windows and mac. Subckt subcircuit definition a9 x subcircuit call a24. Since we want to plot the voltage and current versus time, the transient analysis is used. I find really annoying to shut down my mac and then change my partition disk to windows and then use pspice. Using a behavioural current voltage component bi and bv. This is your basic direct current voltage source that simulates a simple battery and allows you to specify the voltage value.
Download pspice for free and get all the cadence pspice models. Pspice by cadence design systems, inc is a native analog and mixedsignal circuit simulator. The noise contribution of each component can be plotted. Spice is a generalpurpose circuit simulation program for nonlinear dc, nonlinear. Frequency domain arbitrary behavioral voltage source. Adding a current dependent voltage source to ltspice. Close the library selection window and we will begin the construction of the following circuit. As discussed in class there are four types of dependent sources, two are voltage sources and two are current sources. Mar 01, 2020 furthermore, you can simulate the behavior of a circuit at a given intensity, amplitude or voltage. Looking for solutions on the web, it is said to set wine for windows98 and override ole32. Macspice requires a textfile description of the circuit as input.
Jul 27, 2014 create a basic dc circuit with a current dependent voltage and current source. An annoying problem in pspice is the inability to change some properties of the part. Ltspice requires setting of the signal source when simulating. Using timedependent exponential sources to model transients by mitchell lee and gabino alonso when working with surge stoppers or hot swap controllers, occasionally there is a need to simulate a circuits behavior with a specified voltage or current transient. You can either select the current and multiply it by or plot it on a separate y axis. Jul 30, 2015 basic circuit simulation with ltspice july 30, 2015 by trevor gamblin ltspice is a versatile, accurate, and free circuit simulator available for windows and mac. Understand that in all the given examples, even though all the independent currents are mirrored directly by the dependent current source. Pspice software for simulating voltage and currents of a text file netlist of a electronics components such as resistors, capacitors, inductors, transisters, diodes, voltage and current sources. Pspice tutorial 3 using pspice for circuits with dependent sources the problems in this tutorial and the corresponding homework continue to deal with the dc analysis of circuits, or dc bias analysis in pspice. Sens sensitivity analysis a9 w current controlled switch a23. Sep 07, 2018 popular open source alternatives to pspice for linux, windows, mac, web, software as a service saas and more. Add a component add a resistor press r or click the resistor button to insert a resistor. When working with surge stoppers or hot swap controllers, occasionally there is a need to simulate a circuits behavior with a specified voltage or current transient.
If the input is specified as a current source, then the data trace inoise is the noise referred to the input current source signal. Pspice schematic probes are placed in the circuit to measure the voltage across the resistor and the current through the inductor. Up to now, these tutorials have discussed only the most basic types of sources. This tutorial introduces the dependent source elements in pspice. May 12, 2017 voltage sources a voltage source can be configured in many possible ways. Users may prepare netlists with a text editor, or derive them from a circuit diagram using a thirdparty schematiccapture application. The most popular mac alternative is circuit simulator, which is both free and open source. Using pspice for circuits with dependent sources csun. How to implement dependent sources in orcad pspice. For a dc voltage source, enter the voltage and series resistance. Sometimes one would like to figure out voltage, current, or power for a given circuit. Cadence pspice technology offers more than 33,000 models covering various types of devices that are included in the pspice software. If that doesnt suit you, our users have ranked 28 alternatives to pspice and ten of them are available for mac so hopefully you can find a.
Explore 8 apps like pspice, all suggested and ranked by the alternativeto user community. When launching simulation from schematics, it says unable to find pspicead. Nearly all circuits that you simulate need a voltage source of some kind. I tried the recommendations in that thread but was not successful.
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