Using the Alter Command in ngspice
by Ashwith Rego
Hi
>From the documentation I understand that in interactive mode, using
the alter command one can change the device parameters. Does this also
mean I can change the values of a resistance or voltage source in the
netlist? If so how? I used the following circuit:
Bridge Rectifier
.options TEMP=25
V2 2 1 SIN(0 vmax 60)
R2 0 3 resistance
D8 1 3 1N4007
D6 2 3 1N4007
D4 0 2 1N4007
D2 0 1 1N4007
.param resistance = 10k
.param vmax = 5
.end
I've tried
alter r2 = 10
alter r2 resistance = 10
But it won't work. How do I alter vmax or resistance?
Thanks
--
Ashwith J. Rego
-----------------
My Webpage: http://ashwith.wordpress.com/
Find me on LinkedIn at: http://www.linkedin.com/in/ashwith
Follow Me on Twitter at: http://twitter.com/Louisda16th
13 years, 6 months
[Free Electronic Lab] #106: Package : rappture -- gui for archimedes
by fedora-badges
#106: Package : rappture -- gui for archimedes
----------------------+-----------------------------------------------------
Reporter: chitlesh | Owner: chitlesh
Type: task | Status: new
Priority: major | Milestone: EPEL-6
Component: TCAD | Version: devel
Keywords: |
----------------------+-----------------------------------------------------
= phenomenon =
Package rappture for gain a GUI interface for archimedes
= background analysis =
Rappture is a toolkit supporting Rapid application infrastructure, making
it quick and easy to develop powerful scientific applications. At its
core, Rappture is a C++ toolkit, but it has additional language bindings
that let it be used in C, Fortran, MATLAB, Octave, Perl, Python, and Tcl
applications. It combines numerical building blocks, such as Poisson
equation solvers and iterative matrix solvers, along with a powerful
infrastructure for handling user interfaces. Once you describe the
input/output for your simulator, Rappture handles the rest, generating a
graphical interface automatically based on your description. The resulting
application is easy to deploy on the nanoHUB, so a large community of
users can access it through their web browser
https://nanohub.org/infrastructure/rappture/
= implementation recommendation =
Don#t forget to rebuild archimedes with rappture support once rappture is
under the FEL umbrella.
--
Ticket URL: <https://fedorahosted.org/fedora-electronic-lab/ticket/106>
Free Electronic Lab <https://fedorahosted.org/fedora-electronic-lab>
Design, Simulate and Program electronics.
13 years, 7 months
questions about other options
by Howard Howell
Hi, everyone,
I am working on some projects, and have come up with the need for
packaging. Normally you can just package something with some prefab box
or tray, but I would like these to be a bit better. In that vein, I
found the Cupcake CNC, which extrudes ABS to create 3d objects. It
utilizes some software that is apparently free/opensource. Blender is
one package, but one that interests me (being graphically challenged as
it were) is Openscad. Then I thought what if we could get Openscad into
this FEL package. It seems like the combination of FEL with Openscad to
create packaging on the Cupcake CNC (under $1000 3D printer sold as a
kit) should be a good fit.
So that is my question, more or less, would it be a good fit and what
would it take to get Openscad bundled?
Regards,
Les H
13 years, 7 months
