[SI-LIST] Spice measurements
- From: Adrianna <acgalletta@xxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Fri, 20 Jan 2006 18:04:50 -0800
Hi,
I am trying to get the absolute value of the current for my power
calculations, and unfortunately, the Spice documentation hasn't been too
helpful.
I have the following expressions in my deck.
In the first trial, I had:
.plot tran abs_ivdd PAR(ABS(i(vdd)))
.measure tran intgrl_ivss INTEGRAL(abs_ivdd) FROM= 1ns TO= 5ns
As an alternative, I tried:
.measure tran intgrl_ivdd INTEGRAL('ABS(i(vdd))') FROM= 1ns TO= 5ns
I've tinkered with the expressions a few more times using PARAM=' expr', and
only this expression has been given me a non-zero (negative) value:
.measure tran intgrl_ivdd INTEGRAL(i(vdd)) FROM= 1ns TO= 5ns
I know I could use Awaves or some waveform viewer to calculate the vdd power
but I'd like to have the results in the *.mt0 file.
I appreciate your input.
Thanks,
Adrianna
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