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Simulators >> Circuit Simulators >> Switch cap simulation in hspice
https://designers-guide.org/forum/YaBB.pl?num=1242227763

Message started by raja.cedt on May 13^th, 2009, 8:16am

Title: Switch cap simulation in hspice
Post by raja.cedt on May 13^th, 2009, 8:16am

hi,
can any body please tell me how to simulate switch cap circuit in hspice?

Thanks,
Rajasekhar.

Title: Re: Switch cap simulation in hspice
Post by Geoffrey_Coram on May 14^th, 2009, 7:06am

Umm ... get a netlist, put in a .tran analysis statement ... ?

What are you trying to do?

Title: Re: Switch cap simulation in hspice
Post by raja.cedt on May 14^th, 2009, 8:02pm

hi,
but i want to do ac analysis, then how to give clock?

Thanks,
rajasekhar.

Title: Re: Switch cap simulation in hspice
Post by Geoffrey_Coram on May 15^th, 2009, 4:36am

I think you need a PAC (periodic ac) analysis. Maybe you can use hbac (harmonic balance ac). See if you can find an app note on SolvNet.

Title: Re: Switch cap simulation in hspice
Post by cmos.analogvala on May 16^th, 2009, 2:52am

Is possible to do simulations similar to PAC or HBAC in Cadence Spectre . .

-CA

Title: Re: Switch cap simulation in hspice
Post by pancho_hideboo on May 16^th, 2009, 3:03am

cmos.analogvala wrote on May 16^th, 2009, 2:52am:

Is possible to do simulations similar to PAC or HBAC in Cadence Spectre . .

HBAC which Geoffrey_Coram means is an analysis of HSPICE RF.

"Multitone Harmonic Balance AC Analysis (.HBAC)"
http://www.ece.rochester.edu/courses/ECE222/hspice/hspice_rf.pdf

In HSPICE(not RF), you can use combination analysis of ".AC", ".Noise", and ".SAMPLE" analysis, although it is not accurate evaluation.

Also see
http://www.designers-guide.org/Forum/YaBB.pl?num=1241681618/1#1
http://www.designers-guide.org/Forum/YaBB.pl?num=1210932698
http://www.designers-guide.org/Forum/YaBB.pl?num=1215093196/1#1