Re: [SI-LIST] : How about EMI simulation tools?

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From: Fred Balistreri (fred@apsimtech.com)
Date: Wed Apr 26 2000 - 09:35:34 PDT


Your comments are about EDA tools are not totally correct. There are several
EMI tools that simulate emmisions. These are not expert systems but rather
simulation tools. Given that the problem set can be simplified several tools
can do a good job. The problem is really one of user expectation. If your
intention is to build a computer take it to the lab and expect simulation to
match measurement then your expectations are not in line with the tools.
If you want to better understand EMI, the causes, fixes and general trends
then you may benefit from such an EMI simulation tool. An expert system
is built in intelligent rules that may help you avoid common EMI problems
during design. One can use expert systems to help the EMI issue. However
it offers very little or no insight as to the root causes and effect.

There is a wide range of EMI simulation tools. Some only can handle
differential
mode radiation. Some do handle common mode radiation. However the compute
times can become very long and tedious if the problem set is not simplified.
EMI
tools of this nature can be also very expensive. Here is a list although not
extensive
of EMI simulation tool vendors:

Quad, Quantic Labs, Encases, Applied Simulation Technology, Ansoft

Best Regards,

"rachild.chen" wrote:

> Dear Experts,
>
> Everyone know the EMI is a complex system problem.There is no EDA tools can
> solve this question.According to my knowledge,all EMI tools are only a
> expert system.But we must solve the EMI problem in our design and I wish EDA
> tools can provide some advice.Who can give some informations about EDA tools
> realistic value?Which tools is best in EMI simulation,such as Quiet?
>
> Regards,
>
> Rachild
>
> ------------------------------------------------------------------------
> Name: Chen Rachild.vcf
> Chen Rachild.vcf Type: VCard (text/x-vcard)
> Encoding: 7bit

--
Fred Balistreri
fred@apsimtech.com

http://www.apsimtech.com

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