Question

Illegal Fixed-Point Data Type: the number of bits exceeded the supported maximum?
I am having a successive FIR filters in chaine, After I added the filter shown on the pic for 80KHz , I got this errors. actuall...

presque 5 ans il y a | 1 réponse | 0

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Question

control Linear analysis error due to sample rater?
my Objectif is to get a frequency response of the open loop system of plant which will allow me to design the controller transfe...

presque 5 ans il y a | 1 réponse | 0

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Question

Derivative of state '1' in block 'prot_2/LTI System/Internal' at time 0.50009 is not finite?
Hi! after deriving tthis trasnfer function I got this error in simulink, my stap size start at 0.5s: An error occurred while r...

environ 5 ans il y a | 1 réponse | 0

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Question

simple matlab function (simulink) with if?
I have written the very basic MAtlab function on matlab and would like why I am getting this error: function [pos, neg] = selec...

environ 5 ans il y a | 1 réponse | 1

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Question

is it possible to simulate an FPGA in simulink?
hello, is it possible to simulate an FPGA as a block then writing the VHDL code within it and connect it to the dc-dc converter...

plus de 6 ans il y a | 1 réponse | 0

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Question

how have Simulink models image into high resolution?
hello, I want to copy paste my simulink models into my thesis(latex), I used the bitmap and metafile but the quality is very ba...

plus de 6 ans il y a | 1 réponse | 0

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Question

how to increase the size of numbers shown in xy axes in simulink scope?
hello, as you have seen, I want to increase the size of the value shown in the x and y exes so it can be seen in the report be...

plus de 6 ans il y a | 1 réponse | 0

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Question

how to obtain the parameters of the step response within matlab?
hello, I have step response in open loop of my model and I want to use Matlab to obtain the : T time constant L dead time A ...

plus de 6 ans il y a | 1 réponse | 0

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Réponse apportée
Show Step Response Information on Step Response Plot
what if we don't have the math model in my case, I saved data to "to Workspace" but got erros

plus de 6 ans il y a | 0

Question

how to get the body plot of simulink model dcdc boost converter?
hello everyone, is there a method where I can get the bode plot of my dcdc boost converter without using the linear analyis too...

plus de 6 ans il y a | 1 réponse | 0

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Question

getting a 0dB DC gain in DCDC boost converter?
Hello everyone, I have designed a DC-DC boost converter with peak current mode control. I have used the AC sweep and Impulse re...

plus de 6 ans il y a | 1 réponse | 0

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Question

How to specify initial states for simulink model in AC sweep analysis?
As I you have noticed I have another question related after many tries. in the AC sweep block, there is an icon where it is w...

plus de 6 ans il y a | 1 réponse | 0

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Question

Frequency Response Estimation using Linear Analysis tools crashes?
hello everyone, my objective is to get the frequency response (bode blot) of boost DC/DC converter with peak current mode contr...

plus de 6 ans il y a | 1 réponse | 0

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Réponse apportée
Frequency Response Estimation using Linear Analysis tools crashes?
does anybody have an idea?

plus de 6 ans il y a | 0

Réponse apportée
when i run frestimate(mdl,io,in) , it comes out following warnings, what can i do~
Dear Miege, How can we Change the sample time of the Simulink signal where io(1) is located to a continuous sample time, I righ...

plus de 6 ans il y a | 0

Question

At t=0: Electrical model inputs are infinite or NaN?
hello, I am getting this error in my plecs circuit (blockset) whenever I use 02 controlled source voltage connected to same sour...

presque 7 ans il y a | 1 réponse | 0

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Question

why the frequency response of AC sweep of Plecs and Linear Analysis tools of simulink are not the same?
Hello, I am getting different cutoff frequency from AC sweep and linear analysis tools of Simulink as You can see in teh atta...

presque 7 ans il y a | 1 réponse | 0

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why I am getting a cut bode plot of peak current mode control of buck converter (demos)?
this is my model. I have tried as well to use the linear analysis tool and still I AM GETTING errors-

presque 7 ans il y a | 0

Réponse apportée
why I am getting a cut bode plot of peak current mode control of buck converter (demos)?
here it is

presque 7 ans il y a | 0

Réponse apportée
I made transfer function for current-controlled boost converter in MATLAB by calculus and AC-sweep. They match each other, but doesn`t match discrete element model. Why?
Hello Pavel, I am trying to get the transfe function of the boost converter with peak current mode as well but using AC sweep d...

presque 7 ans il y a | 0

Question

why I am getting a cut bode plot of peak current mode control of buck converter (demos)?
hello everyones, I am trying to get the frequency response of the demos given Buck Converter with Peak Current Control and us...

presque 7 ans il y a | 2 réponses | 0

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Réponse apportée
how to get the frequency response of dc dc converter in plecs?
Hi Birdman, this is my model. I used the example given for buck converter and I think there is something wrong in the PWM block...

presque 7 ans il y a | 0

Question

how to get the frequency response of dc dc converter in plecs?
Hello, I am trying to figure out how to have the frequency response of dc-dc converter in both situation: first, the open loop ...

presque 7 ans il y a | 1 réponse | 0

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Question

how to find the tangent of the step response of system in simulink?
Hello, I would to calculate the PID parameter for my plant, I have injected a step input and I got a step response on scope. ho...

presque 7 ans il y a | 1 réponse | 0

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Réponse apportée
how can I include the version of plecs blockset into matlab but this latter does not support it?
Hello Steve, Thank you very much, it works finally.

presque 7 ans il y a | 0

Réponse apportée
why the gain P in PID block when I, and D are 0 and a gain block alone are not equivalent?
Hello Birdman, Sorry I did not see your comment as for when I looked at the comment I still see mine as the last but you have a...

presque 7 ans il y a | 0

Question

why the gain P in PID block when I, and D are 0 and a gain block alone are not equivalent?
hello, I want to tune a PI controller using the self-osciallation model, so I want to use a P controller first. I used a gain b...

presque 7 ans il y a | 1 réponse | 0

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Question

how can I include the version of plecs blockset into matlab but this latter does not support it?
Hello, I have a version of matlab 9,3 and plecs blockset 4,0,2 and the problem my plecs is not supported. how I do manage to in...

presque 7 ans il y a | 2 réponses | 0

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Réponse apportée
what do the variable P,I and D mean in PID(z) in simulink?
Hello Birdman and Thank you so much for your help. So what I understood is that I have to write the value in the PID(z) in simul...

presque 7 ans il y a | 0

| A accepté

Réponse apportée
what do the variable P,I and D mean in PID(z) in simulink?
Sorry, My question was wrong. I know those what they mean but my question when it comes to tuning a PID. in the PID(z) controlle...

presque 7 ans il y a | 0