You are missing a comma in the Vac table after the pair 3,200V. If you have not drawn a schematic with LTspice, we recommend that you draw a schematic before analysis. Any number of parameters can be made into variables, however LTspice will run simulations on all the different combinations of each value. LTspice can use auxiliary units other than m as shown in the following table. Figure 1. The Group moderators are responsible for maintaining their community and can address these issues. Now, it is set to perform transient analysis for 10msec. Then, in the waveform viewer, you can have three plot panes each showing only the result for each step by specifying "@" for the displayed value. If you move the keys up and down in your keyboard you will be able to change between all the different answers. What is the point of Thrower's Bandolier? (I'm using the .op command). After we finish updating our website, you will be able to set your cookie preferences. On the output graph, add the signals of interest to that graph (in this case Vo) and add a cursor. and what would happen then? The list examples detailed above is a different way of achieving the end result required, but it looks like some of the comments are because, as was the case with me, it was not understood that you can't use the component designators without doing the {} thing. I'm confused, do you want to simulate 3 situations or more? In this article, we will explain in detail how to set the simulation command used for the following six types of analysis. The .param directive allows the creation of user-defined variables. Learn more about Stack Overflow the company, and our products. I guess I'll just have to export the data and plot it elsewhere. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. But this wouldn't vary the parameters independently. L: Place inductor. Your control variable you are stepping could be a phase angle or time delay or similar that you input in one or more formulas/expressions to obtain resulting component values or parameters to be applied in the design as {parameter}. Menu Subscribe today! Example: .step oct v1 1 20 5. Of course, it does not matter if you enter 0.01 instead of 10m without using auxiliary units. In this article, we only used the waveform viewer to check the voltage waveforms of V(OUTPUT) with the voltage probe. Besides, the Monte Carlo will take too long and it may 'duplicate' some combinations. LTspice: How can I show multiple probes with waveforms using stepping parameters in different colors? Why does it seem like I am losing IP addresses after subnetting with the subnet mask of 255.255.255.192/26? The PARAM R can be referenced in a component value usng {R} notation. There are two ways to examine a circuit in LTspice by changing the value for a particular parameter: you can either manually enter each value and then simulate the circuit to view the response, or use the .step command to sweep across a range of values in a single simulation run.