From: Abhimanyu on
I have a buck converter circuit designed in simulink. Everything is working fine, except that with the ramp signal generator. In Simulation>>Configuration Parameters>>Solver, there are two options to be fixed: 1) Type: Fixed State 2)Solver: Discrete (Not continuous type)
But with these options selected the rest of the buck converter does not work, because they have continuously working signals and parts. Now how do I get this working? I need the ramp signal generator for the control loop.
From: Abhimanyu on
I dont know but it seems there is some problem either with my name or my doubt here.
Earlier my doubts used to be silly( they might still be). But thats how it is and I wanna get over with it...but i never get a reply on this forum. If not the solution, can anyone please point out the the mistake I am making. Are my doubts silly enough to be answered or is it something else.?
<vicky.singh.79.iitm(a)gmail.com> wrote in message <huuahg$a7n$1(a)fred.mathworks.com>...
> I have a buck converter circuit designed in simulink. Everything is working fine, except that with the ramp signal generator. In Simulation>>Configuration Parameters>>Solver, there are two options to be fixed: 1) Type: Fixed State 2)Solver: Discrete (Not continuous type)
> But with these options selected the rest of the buck converter does not work, because they have continuously working signals and parts. Now how do I get this working? I need the ramp signal generator for the control loop.
From: Steven Lord on

"Abhimanyu " <vicky.singh.79.iitm(a)gmail.com> wrote in message
news:huugq4$h04$1(a)fred.mathworks.com...
>I dont know but it seems there is some problem either with my name or my
>doubt here.
> Earlier my doubts used to be silly( they might still be). But thats how it
> is and I wanna get over with it...but i never get a reply on this forum.
> If not the solution, can anyone please point out the the mistake I am
> making. Are my doubts silly enough to be answered or is it something
> else.?
>
> <vicky.singh.79.iitm(a)gmail.com> wrote in message
> <huuahg$a7n$1(a)fred.mathworks.com>...
>> I have a buck converter circuit designed in simulink. Everything is
>> working fine, except that with the ramp signal generator. In
>> Simulation>>Configuration Parameters>>Solver, there are two options to be
>> fixed: 1) Type: Fixed State 2)Solver: Discrete (Not continuous type)
>> But with these options selected the rest of the buck converter does not
>> work, because they have continuously working signals and parts. Now how
>> do I get this working? I need the ramp signal generator for the control
>> loop.

Not all posts on the newsgroup receive answers. Generally there are several
reasons for this:

1) Your message had a very generic subject line, so it didn't draw the
attention of anyone who knew the answer. The subject line for your post
seems fine; you clearly indicated what problem you were having in the
subject. Therefore I don't think this is the problem.

2) Your message comes in during a time when there are a lot of messages, and
your message just gets "buried" in the flood. This weekend iddn't seem to
be too busy, so I don't think this is the problem.

3) The people who know the answer don't have the time to answer.

4) There's not enough information in the post for people to be able to
answer.

5) No one knows the answer.

This isn't an exhaustive list, but I think it's good enough for now.

I think your post falls into category 4 -- you haven't specified what "does
not work" mean. Do you receive an error? Do you receive a warning? Do you
receive an answer, but it's not the one you expected? Does your computer
start emitting thick black smoke?

Questions related to Simulink models tend to go unanswered more frequently
than questions related to MATLAB functions. One reason I believe this to be
so is simply because it's easier to copy MATLAB code into a newsgroup
message than it is to copy a Simulink model in. Therefore I suggest either
that you put your Simulink model in some free file hosting website (Google
should be able to find you one easily enough) and include a link to that
file in your message or that you contact Technical Support and send them
your model. In either case, clarify what "does not work" means and indicate
what you expected to happen.

--
Steve Lord
slord(a)mathworks.com
comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ
To contact Technical Support use the Contact Us link on
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