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<brian.howie@b...> wrote: random

rand and white on their own are no use -these are rectangular random variables. Use a behavioural voltage source with V for example V=SQRT(-2*LN(white(time*1.07G)+0.5))*COS(2*PI*(white

Oh, yes. That is awkward. I'll see if I can't improve on this. The situation comes about historically because while the academic codes often do allow nested subcircuit definitions, the commercial

seems Hello Ron, a few minutes ago I sent Mike Engelhardt this question and asked him to answer into this thread at the YAHOO-LTSpice group. Best Regards Helmut

<helmutsennewald@y...>" <helmutsennewald@y...> wrote:

Hello Mike, thanks for the tip with the nested subcircuit. I had the chance to get the circuit files from Ron and remembering your advice, I immediatly looked into the LTSpice netlist. It was exactly

The error message occurs when the schematic resloves to netlist something like this: .subckt N1 N2 N3 name1 .subckt N4 N5 N6 name2 [...] .ends name2 .ends name1 The definition of name2 is inside

I created a symbol to represent a schematic (symbol saved as "block" (.asy)). When I placed it in a higher level schematic and tried to run a sim, I got an error message telling me that subcircuits

<sahawley@m...> wrote: Hello, there are two chances for your opamp models. The first one is creating a symbol for every opamp type you want to use. I think this is described in the LTSpice help pages.

Dear Mr. Sennewald, Thank you very much! You gave the final hint to solve the problem! And I already believed in a bug... As you said, there is no semiconductor device in my circuit. In fact, what you

<ingod@y...> wrote: Hello Ingo, there is a very easy way to make such a noise source. Firstly we should be aware that the rand() funktion has equal probability for every voltage level between 0 and 1.

discovered that whatever it is, my circuit works well, but with the > STEP command I get the error : Hello Bernhard, Cjo is normally a parameter of a semiconductor device. It seems you have any such

Hello, After a re-install of my system, I downloaded the newest edition of LTSpice. Now I tried out to simulate a simple circuit, and I discovered that whatever it is, my circuit works well, but with

You can run them if they're defined with, e.g., PSpice subcircuits. Latter versions of LTspice comes with documenation about making symbols for 3rd party devices. --Mike --- "polapart

You might be able to use the rand() function to get what you're looking for. Check the example ./LTC/SwCADIII/examples/Educational/PLL.asc There it is used to generate a random bit stream by boolean

Is there a simple way to convert TI models to run in LTSpice?

Hi everbody, does anyone know, how I can add a noise source in a transient simulation (if it is possible at all)? I tried to modell a noise source with a behavioral voltage source but i didn't work.

Michel, I think this as a problem in the definition of the lossy T-line symbol. Try updating to 2.00c and possibly redrafting the schematic. Congratuations. Yes, this is an aspect of the help

I experienced the following problem using a lossy transmission line. Even though the simulation (.op) can proceed, a non fatal error is occuring all the time: Unknown parameter "td". As I read in the

Version 2.00 of LTspice/SwitcherCAD III is now available. From Version 1.16s, this version introduces 1. a graphical symbol editor 2. hierarchical schematics 3. improved help documentation. The