calculate the input power from transient simulation

Hi, I am using cadence virtuoso. And i want to calculate the input power from transient simulation.., on that simulation i can calculate only transient voltage and current, but i need to calculate total input power from the power supply... Any suggestion pls

If the signal sinusoidal, complex current voltage waveforms will give you the average power as in formulae below.

P=0.5*Re{V*conj(I)} or P=0.5*Re{conj(V)*I}

Thanks for your reply. This everything i want， because of to calculate single mosfet diode efficiency.

It is a name of Design Framework.

You don't describe tool name which you use.
https://www.edaboard.com/showthread.php?t=366664#4
Show us followings.

(1) Correct simulator name
(2) Correct post processing tool name


This can not be applicable for your case, since your simulation is Transient Analysis.

Can you understand what analysis you use surely.

Yes, i forgot to mention the tool name on that thread. But after that i found the xval() function usage.



May be i am not sure which analysis i have to use, can you give the suggestion to calculate the single mosfet diode efficiency...! for any analysis in cadence virtuoso.

Surely show us followings.

(1) Correct simulator name
(2) Correct post processing tool name

"Cadence Virtuoso" is a name of Design Framework.

1)virtuoso 6.1.5
2)Virtuoso Analog Design Environment

You can not understand what tools you use at all.

Such simulator never exists.
Understand correct name of simulator you use.

I assume you use Cadence ViVA as post processing.
Is it correct ?

Even if you use Cadence ADE, you can use various simulators on ADE, e.g. HSPICE, eldo, GoldenGate, etc.

Cadence Spectre

Answer my question.
Use Shooting-Newton-PSS or HB-PSS.
Then apply frequency domain data to the following skill functions for evaluating power.
"spectralPower()" or "pvi()"

"pvi()" is available only in ViVA.
If you don't use ViVA, you have to use "spectralPower()".

If you prefer transient analysis, use skill function "integ()".

About usage of these skill functions, launch skill API Finder from CIW of DFII.

Thank you and forgive me for my ignorance, I used "pvi()" function. So, that post processing tool is ViVA. Can you elaborate, how to use skill function "integ()" or is there any method to calculate input power from sine wave power supply. Just i want to calculate the efficiency of single diode mosfet rectifier. Output power i know P=V*I, but input power.. from the transient analysis...?

Launch skill API Finder from CIW of DFII.

Evaluation of input power is same as output power.

BTW, "V*I" from transient analysis is an instantaneous power.
On the other hand, "pvi()" from PSS analysis is a averaged power over one fundamental period.

Do you surely require to evaluate instantaneous power ?

not must to evaluate instantaneous power from transient analysis, but i am not sure about "PSS analysis input power calculation" in Vsin - power supply.

Evaluate following.
integ(V*I)/T, where T is a one period.

Note:"pvi()" give averaged power regarding only one specific tone.
On the other hand, "integ(V*I)/T" give averaged power including all harmonics.

So if DUT is highly nonlinear, "pvi()" could be different from "integ(V*I)/T".

which means, the "pvi()" method power calculation is more accurate when we set the more harmonics in PSS simulation.

I can not understand what you want to mean at all ?
Describe sentences with correct grammer.

And can you surerly understand "pvi()" ?

It seems you can not learn anything from your previous threads at all.
https://www.edaboard.com/search.php?searchid=4591743