Put a current measuring device in series with the power supply of your inverter, for example an iprobe from analogLib if you are using Virtuoso. Then run a transient analysis with an toggling input. Calculate the average and peak current in the iprobe.

I mesured the currne and found average. After that I  did vdd*average current. But this power is nearly same as the power i measured using average of instant power.(thjis i got from tran-tran  option from ADE in spectre). So i want how much short circuit power is consumed by cmos inverter. Can any body clarify me.
Thanks

Hi Geoffrey_Coram ,
First of all I would like to thank for your reply.
I want to measure the power that consumed by the CMOS inverter when both devices (PMOS and NMOS) are ON during rising and falling transitions of input singnal. That power  only I am treating as Short circuit power. Now how to calculate that power is my question. I feel if we calculate the current that passes from vdd to ground during input rise and fall transitions, then we can use some formule to find power consumption.Can you please help me how to find short circuit power. If you know any alternate method please help me.
Thanks

Hi,
I want to measure short circuit power through simulation. I am doing simulation using cadence spectre. can you please give me some idea..

Thanks for your concern

Hi andresk,
I am very thankful for your support. I will read the stuff you sent.