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Hello Robert I uploaded Test_Step_Model_DZ.asc in files/Temp which combines helmut and Andy's examples. Does it meet your need? Regards PhB

Isn't there anyone else using two screens ?

I was just reading about ako usage to step through different models but am not quite sure how the code directive line would be actually be written the case below for run 1 3 1 for a diode to step

It seems to work, but problem is, I will be having numerous diodes (and other components for that matter) with different Vfwd's per each of the 3 run steps when using the .step param run 1 3 1, so

Excellent suggestion, I'll try it now! Thanks! To: LTspice@... From: LTspice@... Date: Wed, 12 Aug 2015 15:50:47 -0700 Subject: [LTspice] Re: change model parameter (Diode

Thanks, I'll try it. To: LTspice@... From: LTspice@... Date: Wed, 12 Aug 2015 18:37:31 -0400 Subject: Re: [LTspice] change model parameter (Diode Vfwd) during each simulation

Hello, These two SPICE-directives peform the stepping of the forward voltage. .step param VFW list 0.2 0.6 0.8 .model DVF D(Ron=.1 Roff=1G Vfwd={VFW}) I have uploaded an example. Please take a look to

It can be done. I don't actually know if you can step parameter values within a .model statement. Since you brought this up as a question, I'm assuming that you tried it already and that method didn't

Help appreciated: I basically have: .step param run 1 3 1 with generic diode using .model Dvar D(Vfwd = < # volts> as: name reference = D1, value reference = Dvar) and would like during each run step

Maybe you could use a Schmitt trigger and an ideal capacitor (with diodes?) that keeps charging up with 1V each time it's triggered? Just a thought, otherwise I don't know of any capability of the

"Does putting a 0A current source mimic physically breaking the circuit at that location." 0A means no current ... zero ... zilch ... nothing. Zero current is identical to (indistinguishable from)

You will find this file in the temp folder under files in the group's webpage. If you had lot of files , then zip them all up .. Use the up[load facility to upload... Your browser will allow you to

Where can I find the file? Also how does uploading files work on yahoo groups. Which files do i upload to and am i allowed to create new files?

"Context sensitive menues are quite normal in programs in Windows." I have not seen it quite to the extent that it is true in LTspice. Rather than being greyed out, menu choices are totally missing if

Raphael wrote: "But I was thinking that a model composed with a photo triac and an input LED could be sufficient." So if you think it would be sufficient, then find yourself a model for a photo triac,

I modified your circuit to provide a discharge path through the resistor after 5sec.. Now it seems to discharge ok. Regards AG

Hello Jerry, Revisit your basic electronics theory: Ideal Voltage source: 0 impedance, infinite current while maintaining constant voltage across load. Ideal Current source: Infinite impedance, while

http://www.sciencedirect.com/science/article/pii/S0378775315005467?np=y http://www.sciencedirect.com/science/article/pii/S0378775315005467?np=y is the link the the paper

Thanks for the advice. I put the 0.0000001 just to avoid the errors that occur with 0. As for the 0A current source, I'm not an EE or even an engineer actually so my understanding of circuits is

Yes thanks. This resolves my issue, I actually had already come up with something similar to what you mention shortly after I responded yesterday. But you definitely give more insight. Thanks! To: