# Questions tagged [plot]

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I made a really simple scheme/pcb using Kicad (on Ubuntu 14.04). Now I'd like to print this and make my PCB, but I can't figure out how to properly plot the damn thing! When I plot using gerber ...
2k views

### How to save plots in ngspice

Is there a command or an option in the "plot" command that can generate png/jpg images of the plots?
2k views

### Why would a sensor output an inverted signal?

I have a sensor that has 3 components: X, Y and Z and for every component there are 2 channels: X+ :0 V ± 5 V voltage output X- :0 V ± 5 V voltage output inverted All I know is : If the circuit ...
616 views

### Obtain a Transfer Function from Bode Plot shown

I want to obtain a Transfer Function from the Bode Plots I already got the corner frequencies (approximates) and all the terms for my T.F. Then when I try to check my results in MATLAB my plot drops ...
42 views

### Appending plots in LTspice

The single most important thing I miss in LTspice is the ability to plot things of multiple runs on top of each other. Cadence Virtuoso calls that "Append Plot". What I mean: I want to plot ...
266 views

### How to realize a zero at infinity ? RC synthesis

I'm just trying to synthesize this bellow pole-zero map. Since now I have come up with the following equation. $$Z(s) = \frac{(s+1)(s+3)}{(s+2)(s)}$$ But I have no idea about how could I ...
48 views

### How to move LTspice transient simulation plot so they don't overlap

I have a shift register circuit that I want to simulate, and so far, everything seems to work as intended, but I am having a bit of a hard time with the voltage plots. They all overlap, and since the ...
5k views

### How to plot dy/dx versus x of a given y=f(x) plot in LTspice?

Below is a plot of a sweep which shows how Vo changes versus Vi in LTspice: How can I plot the "derivative of Vo" i.e dVo/dVi versus Vi? How can I plot the "integral of Vo" versus Vi? Edit: I was ...
484 views

### Bode plot graph: Frequency vs. Angular frequency

I am wondering, why are some Bode plots made with $f$ or frequency of signal representing x-axis, and why other Bode plots use $\omega$ or angular frequency of signal representing x-axis? Why don'...
1k views

### LTSpice y-axis swap

When plotting values of 2 different types (in my case voltage vs time and current vs time), is it possible to swap the y axes to the opposite side? At the moment my circuit plot shows voltage on the ...
354 views

### Mirror PCB only, not the whole page when plotting as HPGL with KiCad

It's easier to place the PCB near the origin when using a pen plotter to draw it. However, when I plot a mirrored PCB with pcbnew, it also changes the PCB position (it mirrors the whole page). So, ...
13 views

### Cadence simulation graph versus time

please do not know if there is a functionality in CADENCE in the graphs show differences in the times between them (make an average of two values). Regarding the delay of two waves [Automatically in ...
62 views

### What exactly does the frequency spectrum represent?

The signals in the image represent a low pass signal and its Hilbert Transform. I know that a plot for a signal's magnitude with reference to frequencies can be found by applying a Fourier Transform. ...
2k views

### Diode circuit I/V plot

simulate this circuit – Schematic created using CircuitLab Hi, I have started studying diodes and In one of the exercises of my book, I have faced a problem.The exercise wants a i/v ...
5k views

### Change of transconductance for MOSFET

This plot represents drain current versus gate-source voltage (with different ranges of temperature): Often the transconductance of MOSFET is defined as . What is the difference between upper ...
21 views

### why plot of ''To Workspace'' of matlab does not fit the scope of simulink?

I am simulating a complete system for control loop. since I need the data to be saved on matlab, I wrote a small code that saves the data in matlab and I could plot. my system has a sample time of ...
47 views

### Plotting a 20 MHz RF wave in Excel

How can I plot "F1(t) = 20MHz" in Excel? I will eventually put it into mathcad. The amplitude would be a variable as well but lets pick 4.5 for now. Just get the 20 MHz wave to look how it should. ...
1k views

### Octave pzmap: format poles and zeros

This question is linked to this one: Octave rlocus: format ploles and zero I am using the Octave command pzmap but the size of the markers of the poles and zeros ...
2k views

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### Zooming in closely in LTSpice moves the cursors

I'm sorry if this has already been answered, but I could not find anything related to this, even in LTSpice documentation. Whenever I place a cursor on whatever point of an LTSpice plot, if I zoom in ...
27 views

### MATLAB - Docking figure

Can I see the editor and the plot in MatLab (docked view) in parallel? This function doesn't work any longer and it was partially what I needed. ...
71 views

### What could be the reason for these bands in this data acquisition measurement?

Here is zoomed view of 16 channel The first plot looks very peculiar to me hence there are like two forbidden bands(looks like white lines as you see). This also appears if I plot any individual ...
271 views

### How to convert KiCAD pcb file to HPGL/1 for use with old HP plotter?

I intend to use my HP 7475A for directly plotting etch-resistant ink onto a pcb. My problem is that, while KiCAD has an option for HPGL exports, it only generates HPGL/2 compatible files. Those make ...
259 views

### Bode plot of circuit with unknown values

I have the two following circuits with unknown values for R1, L and C, R2 is 1Kohm. I have attempted to find the transfer functions for these circuits and ultimately want to produce two bode plots ...
702 views

### How to Plot X/Y in Java Circuit Simulator

Does anyone know how to select the Y variable when doing an X/Y Plot in Java Circuit Simulator? I tried many things and none have worked.
792 views

### Constructing bode plot from experimental data and constructing a transfer function

I've been trying for a few days to convert an experimentally obtained (frequency against magnitude and frequency against phase) graphs to a bode plot and then construct a transfer function from the ...
354 views

### how to plot two graphs on ltspice on the same y scale?

i want to plot more than one graph on ltspice , the first one shows the voltage vout according to vin , and the second one the derivative of vout to vin , but it shows the two graphs on two different ...
83 views

### choosing best n points on sine wave for wave generation

I want to generate a sine wave using DAC+DMA. Currently, I have an example that generates a sine wave using DAC+DMA from an array of 60 points, at 8KHz. I want to be able to increase the frequency up ...