Reply-To: "Kevin Aylward"
From: "Kevin Aylward"
Subject: Re: Problems with Electronics Workbench
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X-Inktomi-Trace: public1-pete2-5-cust19.pete.broadband.ntl.com 1033990870 23440 18.104.22.168 (7 Oct 2002 11:41:10 GMT)
Date: Mon, 7 Oct 2002 12:41:08 +0100
NNTP-Posting-Date: Mon, 07 Oct 2002 12:41:11 BST
"Roger Johansson" wrote in message
> "Kevin Aylward" wrote:
> >> As far as I can see they use all the normal component symbols and
> >> connect them in a very easy to read way. Connections wire-to-wire
> >> marked with big black dots, much easier to see than in other
> >> schematics capture programs.
> >Er....In SuperSpice you can set the connection dot size. A dot can be
> >big as the entire schematic if you so wish.
> Okay, and I guess you can use normal windows colors?
> I have seen other horrible examples where the circuit is drawn with
> dark blue foreground on light blue background, and no user settings of
All colors are setable within the GUI and stored.
> I looked at you program a few years ago, and I am now on a slow modem
> so I cannot check it out now.
Its changed a *lot* since then. The screen shot on the site is worth
having a look at.
Its a 5Meg download, try it at night.
> >> (I would prefer the international rectangle for resistors, but
> >> americans should feel right at home with the squiggly line
> >In SuperSpice you can use squiggly line resistors or block resistors.
> >You can also use notation like 2k2 for 2.2k
> Very good.
> >Most Spices out there all use the Spice3/Georgia Tech XSpice engine.
> >Some have done a few improvements. There is of course LTSpice, which
> >a significantly faster and has much better convergence then moset
> >> The schematics capture in ewb is outstanding, the only easy to use
> >> chematic capture program there is.
> >This is of course, very, very debatable. I tried EWB before writing
> >SuperSpice, and it was evaluations like this that were partly the
> >motivation for SuperSpice. I personally, found EWB useless.
> You are a professional electronics designer, I would never recommend
> ewb for such purposes, but for beginners and elementary education it
> is very easy to use.
> Like the oscilloscope which you just drag out on the bench area and
> handle with standard scope controls, instead of having to learn how to
> use the different analysis windows and methods of other SPICE progs.
I agree that if the purpose is for teaching of general electronics, that
includes operation of scopes, power supplies etc, this is a decent
feature. However, if the purpose is for a pro doing real design, you
generally get laughed at if someone sees you putting a scope on the
> >> But you can use the schematic capture of ewb and export the netlist
> >> into a better spics simulator, with some consideration, because the
> >> netlist standard can be a bit different in different programs.
> >Can you read back in the output file?
> Yes. You can even import any standard netlist and get a rats nets
> circuit diagram, which you can adjust manually to become readable.
> It does not work good or produce any kind of readable diagram to begin
> with, , but at least it works if handled carefully.
> I wouldn't recommend it for complicated circuits :-)
> >> In other schematics capture programs you might have to learn a new
> >> of drag-n-dropping, while ewb follows the windows standard,
> >> leftclick-hold and drag to the new position, for example.
> >I agree, many Spices do not follow normal windows standards, e.g. In
> >some, you cannot even move components like you can the icons on the
> >windows desktop. Double-clicking should bring up dialogs etc.
> >As far as ease of use I would try adding new models in any product
> >compare it with SuperSpice drag and drop:-)
> There are many things in superspice which I miss in other progs, so I
> would consider using it if it was freeware.
The demo is much bigger then you might think. You can only have 30
components on a top level schematic. However, you are allowed one level
of schematic hierarchy, in which, in the demo mode, you can have 20
components. You can therefore have 30*20=600 components.
> You might find more success by giving away the prog and maybe even
> make it an open source project, so others could help develop it and
> maintain it after you have gone on to other things.
I don't think that I would want to embarrass myself by having anyone
look at the code:-)
SuperSpice, a very affordable Mixed-Mode
Windows Simulator with Schematic Capture,
Waveform Display, FFT's and Filter Design.