help needed for parametric sweep

[surena]

Hi,

I use Orcad (capture 9.2). I designed a circuit with VSIN as the
source. I want to see the result of some parameters by changing the
amplitude of the VSIN (Vi in my circuit). I need to use parametric
sweep. How I can define the sweep variable? If I use VDC in place of
VSIN I only need to put Vi as the variable and define the start value,
end value and the increment. But in the VSIN as the source, simply
writing Vi as the variable does not help, because VAC has three
variables: VAMPl, VOFF, FREQ ((in comparison to VDC that has only 1
variable: its amplitude). How I can define the amplitude variable of
the VSIN in the parametric sweep so I can see the results for various
amplitudes?

Surena.

 

[Jim Thompson]

On 12 Dec 2005 03:04:18 -0800, "surena" <surena_abari@yahoo.com>
wrote:

Hi,

I use Orcad (capture 9.2). I designed a circuit with VSIN as the
source. I want to see the result of some parameters by changing the
amplitude of the VSIN (Vi in my circuit). I need to use parametric
sweep. How I can define the sweep variable? If I use VDC in place of
VSIN I only need to put Vi as the variable and define the start value,
end value and the increment. But in the VSIN as the source, simply
writing Vi as the variable does not help, because VAC has three
variables: VAMPl, VOFF, FREQ ((in comparison to VDC that has only 1
variable: its amplitude). How I can define the amplitude variable of
the VSIN in the parametric sweep so I can see the results for various
amplitudes?

Surena.

In the SINE part, set VAMPL = {VA}

Then declare...

..PARAM VA =1

Then set your range and step size in the Parametric Sweep setup.

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
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