[SI-LIST] Re: Complex voltage division in Hspice?

I should add I'm trying to do this for differential measurements v(a,b) =
and
not v(a,0) and v(b,0).=20

-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] =
On
Behalf Of A.Z.
Sent: Saturday, October 25, 2003 9:19 PM
To: ywguo527@xxxxxxxxxxx
Cc: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: Complex voltage division in Hspice?


But doesn't that FIRST take the voltage Magnitude (V is same as VM), and
THEN divide them?  I'm looking to FIRST divide the COMPLEX (Real+Im)
voltages and THEN get the resultant magnitude and phase, and probe it.  =
=3D Do
you have a sample code for that operation? Thanks,

-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] =
=3D
On Behalf Of Guo Yawei
Sent: Saturday, October 25, 2003 7:15 PM
To: atazad02@xxxxxxxxxxxxx
Cc: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: Complex voltage division in Hspice?


Now I am not in my office, so I cannot try by myself. But I guess you =
=3D
can=3D20 use=3D20 .probe beta=3D3Dpar('V(node1)/V(node2)') when you run =
AC
analysis, where =3D beta=3D20 is the parameter name according to your
preference.

Good luck.



************************************************=3D20
Yawei Guo=3D20
Shanghai MicroScience IC Co., Ltd.=3D20
Shanghai, P.R.China=3D20
MSN: ywguo527@xxxxxxxxxxx=3D20

The poor longs for rich,=3D20
the rich longs for heaven,=3D20
but the wise longs for peace.=3D20
************************************************





>From: "A.Z." <atazad02@xxxxxxxxxxxxx>
>Reply-To: <atazad02@xxxxxxxxxxxxx>
>To: <ywguo527@xxxxxxxxxxx>
>Subject: RE: [SI-LIST] Re: Complex voltage division in Hspice?
>Date: Sat, 25 Oct 2003 18:48:15 -0700
>
>Hi Yawei,
>Thanks for your reply.  I need it for AC analysis, you are correct that =

>=3D

>Hspice reports the Mag/Phase of all nodes automatically, but I need to
FIRST
>divide two node voltages, THEN find their Magnitude or Phase, do =
you=3D20=20
>know how this can be done in Hspice?  Thanks in advance.
>
>
>-----Original Message-----
>From: si-list-bounce@xxxxxxxxxxxxx=3D20=20
>[mailto:si-list-bounce@xxxxxxxxxxxxx]
On
>Behalf Of Guo Yawei
>Sent: Saturday, October 25, 2003 6:43 PM
>To: si-list@xxxxxxxxxxxxx
>Subject: [SI-LIST] Re: Complex voltage division in Hspice?
>
>
>Hi, Ata,
>
>Would you please explain which analysis do you need? AC analysis =
or=3D20=20
>transient analysis?
>
>If you run AC analysis, HSPICE will report the real part, =
imaginary=3D20=20
>part, the magnitude, the phase automaticly. However, for transient=3D20 =

>analysis,
what
>we care is the transient voltage at some specific time. So we =
don't=3D20=20
>need divide one complex voltage into real part and imaginary part.
>
>regards,
>
>
>************************************************
>Yawei Guo
>Shanghai MicroScience IC Co., Ltd.
>Shanghai, P.R.China
>MSN: ywguo527@xxxxxxxxxxx
>
>The poor longs for rich,
>the rich longs for heaven,
>but the wise longs for peace.
>************************************************
>
>
>
>
>
> >From: "A.Z." <atazad02@xxxxxxxxxxxxx>
> >Reply-To: atazad02@xxxxxxxxxxxxx
> >To: <si-list@xxxxxxxxxxxxx>
> >Subject: [SI-LIST] Complex voltage division in Hspice?
> >Date: Sat, 25 Oct 2003 13:00:19 -0700
> >
> >Hi,
> >Does anyone know how to divide two complex (imag+real) voltages =
in=3D20=20
> >Hspice easily?  And then extract their phase and magnitude AFTER=20
> >the=3D20 complex division? Thanks,
> >
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