[SI-LIST] Re: spice-impedance profile of pdn
- From: "Istvan Nagy" <buenos@xxxxxxxxxxx>
- To: "nazish irfan" <irfannazish@xxxxxxxxx>, <si-list@xxxxxxxxxxxxx>
- Date: Sat, 23 May 2009 08:59:49 +0100
Hi
If you want some more detailed model, then you could check my simulation
template.
I used the QUCS free simulator, because it can handle touchstone macromodels
from plane simulation. It also uses a DC/DC control loop model to be more
accurate.
http://www.buenos.extra.hu/download/PowerIntegrityDesign_prj.rar
http://www.buenos.extra.hu/download/QUCS_PowerIntegrity-doc.pdf
regards,
Istvan Nagy
CCT
----- Original Message -----
From: "nazish irfan" <irfannazish@xxxxxxxxx>
To: <si-list@xxxxxxxxxxxxx>
Sent: Friday, May 22, 2009 10:28 PM
Subject: [SI-LIST] Re: spice-impedance profile of pdn
>
> Hi All
>
> I am trying to simulate in LT Spice to get impedance profile of power
> distribution network.
>
> steps I am following are:
>
> 1: make a netlist of all cap, ind and resistors
>
> 2: connecting a 1A AC current source at node 1 (input) so as to make V=Z
>
> 3: connecting a dc path resistance from node 1 to ground
>
> 4: then do AC analysis and use .NET to get Z (impedance) at node 1
>
> results I am getting does not seems to make sense
>
> Can anybody suggest me something or do anybody has done this before and
> can give me sample netlist to get an idea.
>
> regards
> Nazish
>
>
>
>
>
>
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