Is there a 'pretty' way to make custom transistors in LTSpice? To date I've just made a custom circuit card and hand connected things, leaving a hole in my schematic with the text "here be a transistor".
But that's a little bit crude to be showing off to a customer...
--
Tim Wescott
Wescott Design Services
http://www.wescottdesign.com
Do you need to implement control loops in software?
"Applied Control Theory for Embedded Systems" was written for you.
See details at http://www.wescottdesign.com/actfes/actfes.html
In partial answer to my own question, I've found where LTSpice keeps its transistor models -- so, can I do a custom one without just appending it to their file?
--
Tim Wescott
Wescott Design Services
http://www.wescottdesign.com
Do you need to implement control loops in software?
"Applied Control Theory for Embedded Systems" was written for you.
See details at http://www.wescottdesign.com/actfes/actfes.html
.INC(LUDE) slows down netlist reading... the whole file is pulled into the netlist.
.LIB(rary) only pulls in the models used
Not in PSpice.
A transistor (with a subcircuit "behind" it) would have as a "template" (for example):
X_Q1 %c %b %e 2N3904
but on the schematic all you would see would be:
[transistor] Q1 [symbol] 2N3904 ...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
I tried that, and LTSpice wouldn't let me assign the transistor number to a package.
I may need to.
--
Tim Wescott
Wescott Design Services
http://www.wescottdesign.com
Do you need to implement control loops in software?
"Applied Control Theory for Embedded Systems" was written for you.
See details at http://www.wescottdesign.com/actfes/actfes.html
That's another difference I experienced between LTSpice and PSpice. LTSpice ... click the marathon runner symbol... slurrrrrp ... sim runs. PSpice ... click the green arrow ... One Mississippi ... Two Mississippi ... get coffee from kitchen ...
Real men use LTSpice :-)
[...]
--
Regards, Joerg
http://www.analogconsultants.com/
"gmail" domain blocked because of excessive spam.
Use another domain or send PM.
Not when you need professional looking presentations.
LTspice is faster for things like crystal oscillators, but not noticeably faster otherwise.
But you have been using Crapture, which keeps you in constant danger of losing everything.
(I often draw schematics in PSpice, then simply load the netlist into LTspice.) ...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
You keep saying that but I did create professional looking presentations with it. Often I just verbatim-copy the plot pane out of it. During a design review in a somewhat darkened room (to accommodate the projector) it actually looks rather cool. At an aerospace client the guys even remarked that they wished they could easily generate such output with their CAD.
Had to. The client wanted it that way and the client is king :-)
PSpice Schematics is incompatible with Capture 16.3, so no choice for me.
I still have to figure out how to do that in Eagle. Since that CAD is highly programmable I should be able to do that. But I am not a code writing specialist and I don't have a son who can do that for me :-)
--
Regards, Joerg
http://www.analogconsultants.com/
"gmail" domain blocked because of excessive spam.
Use another domain or send PM.
If we can get a few folks together and put in a few hundred bucks bounty each, we could probably find a FOSS programmer who'd do it. It'd pay for itself pretty fast.
Cheers
Phil Hobbs
--
Dr Philip C D Hobbs
Principal
ElectroOptical Innovations
55 Orchard Rd
Briarcliff Manor NY 10510
845-480-2058
email: hobbs (atsign) electrooptical (period) net
http://electrooptical.net
I don't know Eagle, but from PSpice, you simply merge the netlist into the .CIR file (text editor), then run the .CIR file with LTspice. ...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
Good idea. But let me check first, haven't done it in a while. If I can't find anything I'll post in one of the Eagle NGs.
Not sure what you mean with *.cir, LTSpice calls its files *.asc. But yeah, there should be a fairly easy way to do it. Eagle has tons of scripts, including for software that almost dates back to the Romans. I'll check again if someone has done it in the meantime. The Eagle community is very open in that respect and Cadsoft has provided a special area for sharing scripts and user language programs.
--
Regards, Joerg
http://www.analogconsultants.com/
"gmail" domain blocked because of excessive spam.
Use another domain or send PM.
In LTspice just do File/Open on the .CIR file of interest, then "Run".
Anyone conversant in Spice knows what a .CIR file is ;-)
I doubt you even need a script. ...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
I have no idea where Mike hides them, if he uses them at all. I do know that LTspice runs them just fine. And a search finds a bunch of them in the Yahoo zip files... and calls them as type "LTspice netlist file", so installation of LTspice must take that designation (I keep LTspice on a separate machine from PSpice just to avoid such "Open with" conflicts).
You mean Eagle doesn't follow Berkeley traditions ?:-) ...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
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