Tim, the articles about modelling mechanical devices were from www.intusoft.com, e.g. have a look at http://www.intusoft.com/articles/relaycd4.pdf. If you search google and take the links you do not even have to register at intusoft to view the documents. BTW, have also a look at the math.lib in the protel sim.ddb.
Rolf Molitor Ing.Buero i2e Remscheid / Germany -----Ursprüngliche Nachricht----- Von: "Rolf Molitor" <[EMAIL PROTECTED]> An: "Protel EDA Forum" <[EMAIL PROTECTED]> Gesendet: Mittwoch, 21. August 2002 19:12 Betreff: Re: [PEDA] Simulating with load transfer function > Tim, > what about controlled sources ? With the nonlinear ones (BISRC and BVSRC) > you can use mathematical functions to describe their behaviour. Combining > some of them might get you the right transfer functions. > Yes, you can write your own models or subcircuits (maybe using nonlinear > sources) for special devices but you really have to know a little bit about > SPICE / XSPICE (and have proper literature). Unfortunately Protel gives not > much technical support for the simulator. I remember having seen models for > mechanical devices like motors and loudspeakers in SPICE but can't remember > where. > It could have been at www.intusoft.com or www.pspice.com (you may have to > register to get into the support area and be aware that PSPICE is no XSPICE > simulator and has some functions of its own). > > Rolf Molitor > Ing.Buero i2e > Remscheid / Germany > > > -----Ursprüngliche Nachricht----- > Von: "Tim Hutcheson" <[EMAIL PROTECTED]> > An: "peda" <[EMAIL PROTECTED]> > Gesendet: Mittwoch, 21. August 2002 17:54 > Betreff: [PEDA] Simulating with load transfer function > > > > I want to add the transfer function of my load to a simulation but can't > > find a Protel simulation part that lets me do what I want. I would expect > > to find a simulation part in the library that would let me use a table > > lookup or a functional form. Has anyone done this? Perhaps I need to > > create something like a Spice subckt to do this. Has anyone done that? > > This would be used to couple the mechanical response of the load to the > > electrical circuit. > > > > Once I have the physical load modeled, I would want to do something > similar > > with the driving source, but as the compensation needed to equalize the > > output by frequency. This is pretty much the inverse of the load function > > but not exactly and the resulting function will determine a DAC lookup > > compensation table. > > > > I may have completely overlooked something but I don't see how to do it > > directly without resorting to spice programming. > > > > Any ideas much appreciated. > > > > regards, > > > > Tim Hutcheson > > Research Associate > > Institute for Human and Machine Cognition > > University of West Florida > > 40 S. Alcaniz St. > > Pensacola, FL 32501 > > USA > > 805-202-4461 > > > > > > ************************************************************************ > > * Tracking #: 86B90ED2BA1C79408118BE47018CEDDC805F5D1A > > * > > ************************************************************************ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/proteledaforum@techservinc.com * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
