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

• From: "A.Z." <atazad02@xxxxxxxxxxxxx>
• To: <ywguo527@xxxxxxxxxxx>
• Date: Sat, 25 Oct 2003 21:18:41 -0700

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.  =
Do
you have a sample code for that operation?
Thanks,

-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] =
On
Behalf Of Guo Yawei
Sent: Saturday, October 25, 2003 7:15 PM
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 =
can=20
use=20
.probe beta=3Dpar('V(node1)/V(node2)') when you run AC analysis, where =
beta=20
is the parameter name according to your preference.

Good luck.

************************************************=20
Yawei Guo=20
Shanghai MicroScience IC Co., Ltd.=20
Shanghai, P.R.China=20
MSN: ywguo527@xxxxxxxxxxx=20

The poor longs for rich,=20
the rich longs for heaven,=20
but the wise longs for peace.=20
************************************************

>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 =

>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=20
>know how this can be done in Hspice?  Thanks in advance.
>
>
>-----Original Message-----
>From: si-list-bounce@xxxxxxxxxxxxx=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=20
>transient analysis?
>
>If you run AC analysis, HSPICE will report the real part, imaginary=20
>part, the magnitude, the phase automaticly. However, for transient=20
>analysis,
what
>we care is the transient voltage at some specific time. So we don't=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>
> >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=20
> >Hspice easily?  And then extract their phase and magnitude AFTER the=20
> >complex division? Thanks,
> >
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