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Simulators >> AMS Simulators >> temperature variation on AMS transient simulations
https://designers-guide.org/forum/YaBB.pl?num=1275773203

Message started by thechopper on Jun 5^th, 2010, 2:26pm

Title: temperature variation on AMS transient simulations
Post by thechopper on Jun 5^th, 2010, 2:26pm

Hi,

Is there any way to run transient simulation in AMS where the temperature is slowly varied?

Thanks for your comments.
Tosei

Title: Re: temperature variation on AMS transient simulations
Post by boe on Jun 25^th, 2010, 7:59am

thechopper,
Yes. Use something like (example from Cadence Spectre Circuit Simulator Reference):

Code:

tran1 tran stop=0.5u param=temp param_vec=[0ns 20 50ns 25] param_step=10ns

"In this tran run, the temperature is interpolated with slope (25-20)/(50ns-0ns) and updated every param_step (10ns)."

Hope this helps.
BOE

[Added:] Also this is from Spectre documentation, it also works with AMS.

Title: Re: temperature variation on AMS transient simulations
Post by ywguo on Jul 7^th, 2010, 8:06am

Hi Guys,

It's really interesting to run a transient simulation while temperature varies slowly. However, how do I plot temperature variation vs. time in AWD or wavescan after the transient simulation finishes.

Best Regards,
Yawei

Title: Re: temperature variation on AMS transient simulations
Post by thechopper on Jul 15^th, 2010, 7:02pm

Thanks for your answer, boe.
I knew in Spectre such simulation could be run, but I was not aware there was such an option in AMS environment.
I'll try it out then.

Best
Tosei

Title: Re: temperature variation on AMS transient simulations
Post by boe on Sep 2^nd, 2011, 5:50am

ywguo wrote on Jul 7^th, 2010, 8:06am:

.... However, how do I plot temperature variation vs. time in AWD or wavescan after the transient simulation finishes.

Yawei,
Add the following line to your Spectre netlist:
Code:

save temp

This enables saving of the temperature.
B O E