For a dc voltage source, enter the voltage and series resistance. If you doubleclick the e1 dependent voltage source in pspice, you may. In each case we will want to observe voltages andor currents as a function of time. This method analyzes the relationship between voltage and current over a given range for a dc input source. Parallelloaded resonant dc dc converter operating above t he resonant frequency plrcm2 20. This video shows how to download, install, configure and start working with ltspice on a mac. An ac circuit is the one in which the source of the circuit is of alternating current rather than dc direct current. Ic is the initial condition dc voltage for capacitors or dc current for inductors. The problem is i have a pc so im using pspice, not macspice. The dc voltage source v os models the opamp input offset voltage.
For a dc sweep analysis, only the basic markers will be available for you to place in the design. Download orcad free trial now to have a full evaluation of all orcad tools with no functionality limitations. On the simulation toolbar, click the enable bias current and bias voltage display button. Ltspice guide click on the swcad iii shortcut created by the software installation.
Va is the maximum amplitude of the output swing excluding the dc offset f is the frequency. 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. The programs below may provide either analog or digital simulation. Current source, parallel resonant inverters for induction heating csinv 21.
Feb 07, 2018 pspice voltage and current sources watch more videos at lecture by. Orcad all products is not available for mac but there are some alternatives that runs on macos with similar functionality. This time give it the name resistance the simulation profile setup for a dc sweep is shown below. Find the voltages across the resistors and capacitors at 0 seconds and 50 seconds. The tutorial starts under the assumption that the demo version of pspice is installed on your computer. Vsin sinusoidal voltage source model online documentation.
Vampl is the parameter that represents peak amplitude of voltage. The source vac is a 440 hz source with a peak amplitude of 10 volts. This is the setting for performing dc operating point analysis to calculate the dc voltage and current of each node in the steady state of the electronic circuit. Note that we inserted a dc voltage source, vmeas, of zero value, in order to be able to measure the current i4. Pspice is not available for mac but there are some alternatives that runs on macos with similar functionality. Pspice orcad simulation and tutorial voltage divider duration. I find really annoying to shut down my mac and then change my partition disk to windows and then use pspice. Cadence pspice technology offers more than 33,000 models covering various types of devices that are. This may be difficult if apple still doesnt understand that more buttons is more flexible in any case, there must be an osxspecific solution to that, because its used a lot in ltspice now you can put whatever expression you want for the label, and the popup shows a. Vac 1 0 sin0 10 440 the first argument is voltage offset. Cir file that he created in macspice so i could get used to the programming style and try to run it on my computer. Anyway, if you were looking for pspice for mac, you can try these applications, as these circuit simulators. This voltage source will supply dc power to the amplifier circuit. Looking for solutions on the web, it is said to set wine for windows98 and override ole32.
Explore 8 apps like pspice, all suggested and ranked by the alternativeto user community. Cadence orcads capture and pspice simulation install. Vin 1 0 dc 5 the first node is the positive terminal and the second is the negative terminal. We see that the capacitor indeed blocks dc current, so all the. 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 is a versatile, accurate, and free circuit simulator available for windows and mac. Vo is the dc offset voltage of the signal generator. Advanced examples macspice 3 circuit simulator for mac os x. Seriesloaded resonant dc dc converters operating above the resonant frequency slrcm2 19. This gives the factor by which the current through the branch is changed for the source. Pspice ac circuit simulation showing 0 v for output voltage. My lab gives zero instruction on pspice, tossed us a brief manual on dc pspice circuits even though the class is ac, and said go forth. Dc transformer voltage controlled voltage source e.
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. Basic markers include voltage level, differential voltage between two nodes, current into a pin on a two or three pin pspice ad device i. I understand this can be modelled separately and incorporated into my hbridge schematics. Ltspice is a high performance spice simulator, schematic capture, and. Similar to bias point, expect that the value of one dc source in the circuit can be varied over some range, and the currents and voltages in the circuit are calculated at each dc source value. For the voltage source above, we can start by looking only at the response at the. These include the independent dc and ac voltage and current sources, and the simple voltage or current controlled dependent voltage and current sources. It is optional the symbol means that the field is optional. Most typically, we will use a voltage source with an amplitude of 1 v. I had tried a voltage source at one point, but the real problem id run into then was specifying the name of the voltage source. The ground terminal is always node 0 in any circuit. Open the independent voltage source screen by rightclicking the signal source v1 of the schematic with the mouse. Dependent source setup place all the elements including currentcontrolled voltage source, h. Display measurement of dc differential voltage in pspice.
Pspice by cadence design systems, inc is a native analog and mixedsignal circuit simulator. At the start of the tutorial a brief introduction of ac alternating current is provided after that a simple ac circuit is implemented in pspice. Just select dc op pnt and do not enter anything else. The simulationready sinusoidal voltage source component. If that doesnt suit you, our users have ranked 40 alternatives to orcad all products and ten of them are available for mac so hopefully you can find a suitable replacement. May 12, 2017 this is your basic direct current voltage source that simulates a simple battery and allows you to specify the dc voltage value. In pspice, this can be done using the etable component in the. It is likely that the old url for this pspice tutorial will disappear on august 31, 2015. Here i present you 10 of the best circuit simulation tools available on mac that allow you to design, analyse and test a circuit virtually on a computer. Sep 07, 2018 popular open source alternatives to pspice for linux, windows, mac, web, software as a service saas and more. It would be pleasing to have pspice measure this voltage or any differential. This allows you to make a plot of a voltage or current in the circuit as a function of the dc source voltage.
Today this article is a list of circuit simulation softwares for mac. This method analyzes the voltage and current for one or multiple components in a circuit at a. Controlled sources in cadence orcad spice for dc circuit. To set up and run a dc sweep analysis in the analysis setup dialog box, click the dc sweep button. After that you will see a dc voltage source symbol moving with your mouse. To create a square wave voltage source in a netlist, use the following format found on page. Outputs include voltages and currents with the magnitude and phase, which you can use to obtain bode plots. Up to now, these tutorials have discussed only the most basic types of sources. Place a resistor r from the analog library and name it rs and set its value to 47k.
Since most of the circuit simulators run on windows, it may be a problem for mac users. Design and simulate a basic dc circuit using pspice duration. In previous tutorials we have described the dc voltage source, vdc, and the sinusoidal voltage source, vsin. Windows but doing the graphics and editing on the mac, which is how this. Here we can see that dc sweep is the chosen simulation type with preconfigured source, start value, and end value parameters. The current source i3 has a value of 12ma and flows from node 3 to node 5. Introduction to dc sweep, ac analysis and transient analysis duration. Create a new schematic and enter your thevenin equivalent.
In this tutorial this law is applied and verified using pspice as you will see shortly. Getting started with ltspice for mac woolsey workshop. 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. It assumes that you have completed pspice tutorial 1 and understand how to perform a basic dc bias analysis of a resistive circuit. Getting started with cadence orcad pspice demo version. For instance, suppose we wanted to make the voltage source above model. I do know how to mathematically model a dc motor with the electrical and mechanical considerations and thus. Pulse waveform a voltage pulse or pulse train can be applied as an independent source in pspice using the. 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.
Download pspice for free and get all the cadence pspice models. If you dont want dc source anymore, just press the esc button on your keyboard and you will exit the mode of inserting dc source. With this circuit, well be sweeping voltage from the fet gate to ground with a defined range of 0 to 10 volts. Cadence pspice technology offers more than 33,000 models covering various types of. The rndsrc script generates gaussian random numbers using the boxmueller algorithm. The voltage is directly proportional to the current in a circuit provided that the resistance and the temperature remains constant. Orcad offers you a choice for licensing and locking mechanisms that best suit your tool usage needs. For the purpose of this tutorial we will only need the analog and the source library. Since we want to plot the voltage and current versus time, the transient analysis is used. An annoying problem in pspice is the inability to change some properties of the part. So far we have covered circuits with resistors and independent sources. Im new to pspice and im working on a project for school. Basic circuit simulation with ltspice technical articles. In class, the equivalent resistance of the circuit shown in figure 1 was determined to be 10 figure 1.
Add a component add a resistor press r or click the resistor button to insert a resistor. Spice is a generalpurpose circuit simulation program for nonlinear dc, nonlinear. Close the library selection window and we will begin the construction of the following circuit. V1 4vdc r1 100 0 as before, go to the pspice tab, or the button, and create a new simulation profile. Spice quick reference sheet the general anatomy of a. Sometimes one would like to figure out voltage, current, or power for a given circuit. This is an overview of ac and dc simulation, as well as how to analyze output signals. Place a v dc source from the source library and set its value to 10v. Orcad products can be licensed and locked to a portable physical device, a networked ethernet mac address, or a virtual machine environment. Pspice gives a quick way of calculating these values. Whether youre in school, a small design team or a multinational corporation. I am actually working on my final year project and have problems getting a dc motor from orcad 16. Cadence pspice technology offers more than 33,000 models covering various types of devices that are included in the pspice software. Use of pspice model in ltspice mosfets from infineon.
Resistive circuit by definition, if we apply a dc voltage source of value v dc to a resistive circuit as. For an ac sweep analysis, pspice ad calculates the smallsignal response of the circuit linearized around the bias point when sweeping one or more sources over a range of frequencies. This has been mentioned in pspice reference guide for isin current counetrpart of vsin. Tutorial on how to find and use controlled sources in orcad 16. This tutorial introduces the dependent source elements in pspice. Pulse it should never be used in a frequency response study because ltspice assumes it is in the time domain, and therefore your probe plot will give you inaccurate results.
You should now see values on your circuit representing current andor voltage. Once i cottoned onto that and reversed to a voltage source, the dc sweep worked fine and i was able to apply it to an experiment in constant current sources id. 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. Apply a current source and use dc sweep to obtain the vi graph for the thevenin circuit and compare with the original. Pspice schematic probes are placed in the circuit to measure the voltage across the resistor and the current through the inductor. When launching simulation from schematics, it says unable to find pspicead. The most popular mac alternative is circuit simulator, which is both free and open source. Apr 26, 2019 pspice is not available for mac but there are some alternatives that runs on macos with similar functionality. 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, etc.
Having problems with dc sweep circuitlab support forum. Create a new pspice project or use the resistor project from chapter 1 as a starting point. Double click on the dependent source click on gain and change the value to 8. This method analyzes changes in voltage and current in a given frequency range for an ac input source. The most popular mac alternative is kicad, which is both free and open source. Pspice voltage and current sources watch more videos at lecture by. Notes for orcad pspice university of california, san diego. Here we will be using the circuit 1 as a reference. Click your mouse at two different locations, you will see that you have inserted two dc voltage source instances on schematic.
If you doubleclick the e1 dependent voltage source in pspice, you may find the gain property. Type edit in the command line to make changes to the netlist. As for the voltage sources, for this circuit youll want to simply enter dc values. Well begin by selecting the simulation icon to open the simulation dialog. The command prompt will be similar to the mac and linux distros. We use probes to generate the frequency response plots, which show up in separate windows. Cir input file is to draw the schematic figure of the circuit to be tested.
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