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Antonix 6th August 2006 03:03 PM

switch in SPICE
I have to simulate a guitar preamp in Orcad PSPICE but in Device library there are no template to simulate switch DPDT.

Where I found them ?

kevinkr 6th August 2006 10:19 PM

I'm not exactly an expert, but the several versions of spice that I am acquainted with don't have a switch in any form.. Normally you would hardwire the circuit in each of the configurations you want to simulate and run a separate run for each.

teemuk 6th August 2006 10:58 PM

Does Orcad have voltage or current controlled switch models? Perhaps you could use either one of those with a delayed control signal. (You need to control switching for each pole, though). What are you trying to simulate?

Brian Beck 7th August 2006 12:26 AM

I use Microsim PSPICE version 8 which later became Orcad PSPICE. In the standard simulator part list there are two SPST switch types, normally closed “SW_tclose” and normally open “SW_topen”. Both types will switch at any time that you define. You can connect 2 pairs of these to make a DPDT, or you can create any other kind of multiple-pole, multiple-throw switch with these building blocks.

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