RMS and Average values

Valentin Lecuyer

Hi,

I am conducting a current consumption analysis of a circuit aiming to drive a piezoelectric actuator.

My simulation is working fine.

I need to record the current at different points of my circuit. To do so, I have place ammeters at each point I need to have a current measurement.

After running a transient analysis, I record the RMS and Absolute Average values for each current curves by selecting the curve > clicking Process > Averages...

I would like to know if it is possible to modify the precision of the value because when the RMS current is lower than 1mA, the value is very precised :

1.138*10^-5 A

but as soon as the RMS current is higher than 1mA, the value shown is :

0.001 A which is a round value.

Does someone knows how to prevent the Tina to round the value like that? If not, I am interested in any way to get the average and RMS values of a current.

I thank you in advance

Valentin

over 11 years ago

0 Britt Brooks - Online Design Tools over 11 years ago

TI__Mastermind 41310 points

Valentin,

I have confirmed with DesignSoft that this is a bug in TINA. The only solution possible would be to use a VCVS to amplify the value to a higher level where the accuracy is better handled (basically, multiply the targeted voltage by 1000 so that the accuracy is better). Here is the example they showed:

The targeted voltage in this case is represented by the voltage source. It is then amplified and the values give a more accurate reading.

Britt

0 Valentin Lecuyer over 11 years ago in reply to Britt Brooks - Online Design Tools

Prodigy 20 points

Thanks for the answer.

It works great!

Valentin

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RMS and Average values