Google Answers Logo
View Question
 
Q: Circuitry Design Software ( Answered 4 out of 5 stars,   1 Comment )
Question  
Subject: Circuitry Design Software
Category: Science > Technology
Asked by: macman_84-ga
List Price: $25.00
Posted: 26 Sep 2006 19:52 PDT
Expires: 26 Oct 2006 19:52 PDT
Question ID: 768719
Hello, I am new to circuitry design and i am looking for a good
program that simulates a breadboard.  I know there are many out there
however my needs are sort of specific.  I am looking for a program
that has an easy to follow graphical user interface that will be easy
to understand for beginners.  I am also looking for the program to
support as many of the following components as possible:

Resistors & Capacitors
Variable Resistors
MPX10GS Pressure Sensor
LEDs
LMC555 CMOS 555 Timer
Oscillators
VN2222LL Mosfet
LF411CN Op Amp
LM4040 2.5v Reference
LM317 1.5A adjustible position regulator
LM7805 5v voltage regulator
LM7905 5v voltage regulator
LM339 volt comparator
DC Motors
Piezo buzzer
Microchip PIC18LF4520

I will mostly be using LM series units as well as the 4000 series
chips.  So the more the program supports the better.  The last thing
is i would like to see a couple options ranging from free or
inexpensive to expensive.  Thank You for your assistance.

Request for Question Clarification by denco-ga on 26 Sep 2006 22:29 PDT
Howdy macman_84-ga,

What you are looking for is SPICE (Simulation Program with Integrated Circuits
Emphasis) software.

First, some software that is free for non-commercial use, called 5Spice, and
described as follows on their website.
http://www.5spice.com/

"5Spice is a new graphical user interface that wraps around a traditional Spice
simulation engine, presenting a single application to the user. It offers easy
to use analog circuit simulation for the typical circuit designer."

You can download 5Spice from this page.
http://www.5spice.com/download.htm

The neat thing about SPICE programs is that they use SPICE models, that is,
models of various components that are entered into the program to simulate
the final circuit for testing.

Here is the SPICE model page of the makers of the LM series, on the National
Semiconducter web site.
http://www.national.com/appinfo/amps/amplifiers_spice_models.html

"National Semiconductor SPICE Macromodels are valuable design tools which mimic
the response of our actual devices."

Penzar Development provides links to other companies that have SPICE models.
http://www.penzar.com/links.htm

The Spread Spectrum Scene website is another great SPICE resource.
http://www.sss-mag.com/spice.html

If you could look through the above sites and information and see if it will
provide what you need, that would be great.  If it does, please tell me, so I
can then post this as the answer to your question.  Thanks!

Looking Forward, denco-ga - Google Answers Researcher

Clarification of Question by macman_84-ga on 26 Sep 2006 23:44 PDT
Denco-ga,

This looks like it will work fine so far...

Do all of these spice apps work nearly the same and support the same components?
How do i go about adding other components into a spice app?
Is there any good spice apps for Mac OS X?
And last is there any kind of website that rates these spice apps so i
know which is the bes to use for my situation.

If you could answer these i would appreciate it either way thank you
for the help and go ahead and post it as an answer.
Answer  
Subject: Re: Circuitry Design Software
Answered By: denco-ga on 27 Sep 2006 10:32 PDT
Rated:4 out of 5 stars
 
Howdy macman_84-ga,

Much thanks for your clarifications and accepting this as the answer to your
question.

What you are looking for is SPICE (Simulation Program with Integrated Circuits
Emphasis) software.

First, some software that is free for non-commercial use, called 5Spice, and
described as follows on their website.
http://www.5spice.com/

"5Spice is a new graphical user interface that wraps around a traditional Spice
simulation engine, presenting a single application to the user. It offers easy
to use analog circuit simulation for the typical circuit designer."

You can download 5Spice from this page.
http://www.5spice.com/download.htm

As noted, 5Spice is a Graphical User Interface (GUI) for SPICE, and the
download comes with a version of SPICE called WinSpice.  More information on it
can be found on the WinSpice website.
http://www.winspice.com/

"WinSpice is a port of Spice3F4 to Win32 systems."

The neat thing about SPICE programs is that they use SPICE models, that is,
models of various components that are entered into the program to simulate
the final circuit for testing.

Here is the SPICE model page of the makers of the LM series, on the National
Semiconducter web site.
http://www.national.com/appinfo/amps/amplifiers_spice_models.html

"National Semiconductor SPICE Macromodels are valuable design tools which mimic
the response of our actual devices."

Penzar Development provides links to other companies that have SPICE models.
http://www.penzar.com/links.htm

The Spread Spectrum Scene website is another great SPICE resource.
http://www.sss-mag.com/spice.html

To answer your further questions.

- Do all of these spice apps work nearly the same and support the same
components?

Yes, that is what appears to be the case, except some SPICE simulators are
command line based, yet others are GUI based, and there are GUI interfaces
for some of the command line simulators as well.

Some SPICE simulators have more bells and whistles, and other appear to have
more advanced capabilities, but SPICE is supposed to be standardized.  Some of
the commercial products, going for hundreds of dollars, are probably more
robust and configurable.

- How do i go about adding other components into a spice app?

It appears that with at least a command line SPICE simulator that one "just"
enters each component line by line.  The following is from the "Quickstart
Tutorial for Spice 3" from the University of Exeter website.
http://newton.ex.ac.uk/teaching/CDHW/Electronics2/Spice3Quickstart.html

"Each element in the circuit is specified in the source file by a line that
gives the element name, the circuit nodes to which the element is connected,
and the values of the parameters that determine the electrical characteristics
of the element."

- Is there any good spice apps for Mac OS X?

"MacSpice 3f5" appears to be the "leader" of the very limited pack, and the
University of Exeter website has support for the simulator.
http://newton.ex.ac.uk/teaching/CDHW/MacSpice/

"As its name suggests, MacSpice is an implementation for the Apple Macintosh
computer of the Berkeley Spice 3f5 electronic circuit simulator. However,
MacSpice is not simply a 'port' of the Berkeley code, it incorporates many
improvements ranging from simple bug-fixes to entirely new algorithms and
solution strategies."

There is also "Spice 3f4v02b - Carbonised and Optimised" by Kiva Design.
http://www.kivadesigngroupe.com/Kiva%20Professional/professionalpage.htm

"Spice 3f4v02b is a straightforward, mechanical port of the Spice
electronic circuit simulation program to the Macintosh (MacOS Classic
and MacOS X - the port is carbonised)."

There is a GUI for "Spice 3f4v02b" called iSpice.  Version 0.5 can be found on
the Softpedia website.
http://mac.softpedia.com/get/Math-Scientific/iSpice.shtml

- And last is there any kind of website that rates these spice apps so
i know which is the bes to use for my situation.

There does not appear to be any rating site.  The AboutSpice website might be
a resource for comparison.
http://www.aboutspice.com/

"Welcome to AboutSpice.com, the vendor independent information source for the
Spice electronic simulation users ..."

Wikipedia has a good entry with an overview and links on SPICE simulators that
might also prove helpful.
http://en.wikipedia.org/wiki/SPICE

I would suggest you start with MacSpice, or if you have access to a Windows
based machine, 5Spice interfaced with WinSpice, and build on that experience.

If you need any clarification, please feel free to ask.


Search strategy:

Google search on: electronic circuit design software OR simulator
://www.google.com/search?q=electronic+circuit+design+software+OR+simulator

Google search on: SPICE software
://www.google.com/search?q=SPICE+software

Google search on: SPICE "OS X"
://www.google.com/search?q=SPICE+%22OS+X%22

Looking Forward, denco-ga - Google Answers Researcher
macman_84-ga rated this answer:4 out of 5 stars
Answer covered the information that i needed.

Comments  
Subject: Re: Circuitry Design Software
From: blackburn-ga on 27 Sep 2006 02:18 PDT
 
i have two software one is circuit designer and the other is matlab
.Both are nice circuit designing software.Both are full version.

Important Disclaimer: Answers and comments provided on Google Answers are general information, and are not intended to substitute for informed professional medical, psychiatric, psychological, tax, legal, investment, accounting, or other professional advice. Google does not endorse, and expressly disclaims liability for any product, manufacturer, distributor, service or service provider mentioned or any opinion expressed in answers or comments. Please read carefully the Google Answers Terms of Service.

If you feel that you have found inappropriate content, please let us know by emailing us at answers-support@google.com with the question ID listed above. Thank you.
Search Google Answers for
Google Answers  


Google Home - Answers FAQ - Terms of Service - Privacy Policy