Circuit Simulation Software

[Howard W. Ashcraft]

I am looking for software (preferably Linux, open source) to model electronic circuitry.  My primary interest is educational.  I want to use the software to design and investigate circuits to better understand how they work.  I may do a little design, as well.  Does anyone have suggestions?

HOWARD W. ASHCRAFT, Jr.
Direct Dial: [phone]
[hidden email]
HANSON 333 Market Street, 23rd Floor
BRIDGETT San Francisco, CA 94105-2173
MARCUS   Direct: [phone]
VLAHOS Main: [phone]
RUDY, LLP Fax: [phone]

This communication, including any attachments, is confidential and is protected by privilege. If you are not the intended recipient, any use dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please immediately notify the sender by telephone or e-mail, and permanently delete all copies, electronic or other, you may have. The foregoing applies even if this notice is embedded in a message that is forwarded or attached.


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[Pierre Desjardins]

There was a review in QST, June 2004 of CircuitMaker Student Version...
WinXp version though..

http://www.circuitmaker.com/downloads/student.htm

73 de Pierre VE2PID

----- Original Message -----
From: "Howard W. Ashcraft" <[hidden email]>
To: <[hidden email]>
Sent: Wednesday, November 17, 2004 12:44 PM
Subject: [Elecraft] Circuit Simulation Software


I am looking for software (preferably Linux, open source) to model
electronic circuitry.  My primary interest is educational.  I want to use
the software to design and investigate circuits to better understand how
they work.  I may do a little design, as well.  Does anyone have
suggestions?

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[Bob - W5BIG]

Hi Howard,

A very good circuit simulation program is Top Spice which you can get at:
http://www.penzar.com/

The free demo version (no time limit) is quite useful.  I use it all the
time.
The program is user friendly and the online help that comes with it is good.
There are a lot of circuit models with it and
you can get more from various semiconductor manufacturers.

73/ Bob - W5BIG


----- Original Message -----
From: "Howard W. Ashcraft" <[hidden email]>
To: <[hidden email]>
Sent: Wednesday, November 17, 2004 11:44 AM
Subject: [Elecraft] Circuit Simulation Software


I am looking for software (preferably Linux, open source) to model
electronic circuitry.  My primary interest is educational.  I want to use
the software to design and investigate circuits to better understand how
they work.  I may do a little design, as well.  Does anyone have
suggestions?

HOWARD W. ASHCRAFT, Jr.
Direct Dial: [phone]



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[Hisashi T Fujinaka]

On Wed, 17 Nov 2004, Howard W. Ashcraft wrote:

> I am looking for software (preferably Linux, open source) to model
> electronic circuitry.  My primary interest is educational.  I want to
> use the software to design and investigate circuits to better
> understand how they work.  I may do a little design, as well.  Does
> anyone have suggestions?

Heh. I use SPICE, and I'm sure by now that there's a nice front-end for
the thing. It's old and crusty and ran on IBMs when I first started
using it. Used it to model CMOS timing the last time I had an EE job.

For a lot leetnix software, you can check freshmeat.net, part of the
OSTG (Open Source Technology Group?) like slashdot.org, etc.

--
Hisashi T Fujinaka - [hidden email]
BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte
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[n6wg]

Howard
Look up RFSim99.  It's free and might do for starters.
73, Bob N6WG
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[N8LP]

LTSpice is a freeware Spice program from Linear Technology that is quite
good and easy to use... and the price is right.

Larry N8LP



Howard W. Ashcraft wrote:

>I am looking for software (preferably Linux, open source) to model electronic circuitry.  My primary interest is educational.  I want to use the software to design and investigate circuits to better understand how they work.  I may do a little design, as well.  Does anyone have suggestions?
>
>HOWARD W. ASHCRAFT, Jr.
>Direct Dial: [phone]
>[hidden email]
>HANSON 333 Market Street, 23rd Floor
>BRIDGETT San Francisco, CA 94105-2173
>MARCUS   Direct: [phone]
>VLAHOS Main: [phone]
>RUDY, LLP Fax: [phone]
>
>This communication, including any attachments, is confidential and is protected by privilege. If you are not the intended recipient, any use dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please immediately notify the sender by telephone or e-mail, and permanently delete all copies, electronic or other, you may have. The foregoing applies even if this notice is embedded in a message that is forwarded or attached.
>
>
>_______________________________________________
>Elecraft mailing list
>Post to: [hidden email]
>You must be a subscriber to post to the list.
>Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft   
>Help: http://mailman.qth.net/subscribers.htm
>Elecraft web page: http://www.elecraft.com
>
>
>  
>

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[John Magliacane]

Hi Howard.

> I am looking for software (preferably Linux, open source) to model electronic
> circuitry.  My primary interest is educational.  I want to use the software
> to design and investigate circuits to better understand how they work.  I may
> do a little design, as well.  Does anyone have suggestions?

Yes.  How about ng-spice (Next Generation SPICE)?

       http://ngspice.sourceforge.net/

It's still a work-in-progress, but I've been able to get some
meaningful simulations out of it under Linux.

I have also found the following guides:

       http://www.ibiblio.org/obp/electricCircuits/Ref/REF_7.html

       http://newton.ex.ac.uk/teaching/CDHW/Electronics2/userguide/sec4.html

very useful in running SPICE and in creating SPICE circuit files.


73, de John, KD2BD


=====
Visit John on the Web at:

        http://www.qsl.net/kd2bd/


               
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[Tom Russo-4]

On Wed, Nov 17, 2004 at 09:44:50AM -0800, Howard W. Ashcraft <[hidden email]> appears to have written:

> I am looking for software (preferably Linux, open source) to model
>  electronic circuitry.  My primary interest is educational.  I want to use
>  the software to design and investigate circuits to better understand how
>  they work.  I may do a little design, as well.  Does anyone have
>  suggestions?

Probably your most accessible open source/linux code will be SPICE3.
You might be able to find an RPM or "apt-get"-able binary somewhere, or you
can pull the sources down from Berserkely.

http://infopad.eecs.berkeley.edu/~icdesign/SPICE/

ftp://ic.eecs.berkeley.edu/pub/Spice3/

On FreeBSD you can get this going just by "cd /usr/ports/cad/spice; make
install", but that probably won't help you.

For schematic capture you might want to look at gEDA (gschem, gnetlist and
other tools):
http://www.geda.seul.org

I've used gschem and gnetlist a little.  They're not as easy to use as some of
the commercial tools, but you can do quite a lot with them.

There's another circuit simulator out there for linux and other platforms, but
it's not yet open sourced and available only by special licensing.  Hope to be
able to say something different in a few months.

--
Tom Russo    KM5VY   SAR502   DM64ux          http://www.swcp.com/~russo/
Tijeras, NM  QRPL#1592 K2#398  SOC#236 AHTB#1 http://www.qsl.net/~km5vy/
   "Abandon the search for Truth.  Settle for a good fantasy."
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