[SI-LIST] Re: Message submitted to 'si-list'

Ray,

... do you mean GMINDC?

Todd.

Todd Westerhoff
Signal Integrity Engineer
Cisco Systems
250 Apollo Drive - Chelmsford, MA - 01824
email:twesterh@xxxxxxxxx
ph: 978-497-0272
============================================

"Why'd you have to go and make things so complicated?"

- Avril Lavigne


-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx
[mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of Ray Anderson
Sent: Thursday, July 25, 2002 1:51 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: Message submitted to 'si-list'




Nancy-

All you need to do is place a large (say 10 Megohm or 100 Megohm)
resistor from node 3 to ground (node 0). This will make Hspice happy
by creating a DC path and not effect the results of your simulation.

I _think_ there is some option you can specify in Hspice to make this
happen automatically, but don't have the details handy at the moment.

-Ray

>
> SI-list,
>
> I am using Star-HSPICE to simulate a very simple circuit, but I got an
error
> message "no dc path to ground from node    0:3 ". Can HPICE simulate this
> kind of circuit? How can I fix the error? Thanks.
>
> -----------------circuit script ------------------
> .option post = 2
> .ac lin 100 1e6hz 5ghz
> vs 1 0 ac 1
> rs 2 1 50
> c1 3 2 1e-12
> c2 3 0 2e-12
> .print ac vm(3)
> .end
> ---------------------------------------------------
> **error**:  no dc path to ground from node    0:3
>
> Nancy
>

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