Error during simulation

I keep getting this error while trying to simulate my sync buck simuling file. Cant seem to get around it. Can anyone help me with it?

The error is below.

Unable to locate 'mexopts.bat', and therefore cannot determine which compiler to use for simulation builds.
Use 'mex -setup' to select a supported compiler.

HW1 Problem 2 Algebraic Loop

Hi all,

Is anyone else having a problem with an "algebraic loop" in problem 2 of HW#1? I hooked up the ig output of the synchronous buck block to the ig input of the LC filter block, thus creating said loop. I think the problem is that the synchronous buck block requires vg to compute ig, and the LC filter block requires ig to compute vg, thus creating a circular reference. But I'm not sure how to accurately model it otherwise.

Thanks,
Josh

Simulink linearization issue

Hi all,

I am going through the professor's paper on the sync buck model and I am stuck on page 16 (Linearization inputs and outputs). I was able to set the control System Toolbox Preferences but when I right-click on the vc signal, I don't see the option for Linearization Points. Has anybody seem the same issue?

how to specify eps in comparator block

I am assuming that in the comparator block, if "Enable zero crossing detection" is checked, then the value of eps is zero. How do we specify the value of eps if "enable zero crossing detection" is not checked?

Linux and Matlab

Hi,

Just in case anyone can help, I'm chucking this out here in addition to the Ubuntu forums.

I'm running Ubuntu 11.04 and Matlab R2010a, and I get errors trying to simulate due to gcc being too new a version. The forums say it should compile anyway, but it clearly doesn't work. I'm trying to install gcc 4.2.3 - the latest supported by R2010a - but for whatever reason this version of Ubuntu hates it.

If anyone can help me, you can email me directly at sean.gale@gmail.com so this nonsense doesn't take up space on this blog. I'd be grateful, because it's difficult for me to get to campus on my off days to work on this stuff.

Thanks,

S

Lecture 3 question

It's a very interesting approach. But it seems like it can be used with perfect switches. How about RDS on on MOSFETS and reverse recovery on diodes? Can this approach still be used?

Course Slides are missing on Tegrity Player

Has anyone else experienced the Video being ok but the slides are not showing on the Tegrity player? Thanks, Tim