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I need a model for a gas discharge tube similar to the Siemens A81-
C90X, if anyone can help I'd appreciate it. I have just started to
use LTSpice and would like to know if there is any information out
there that shows how to convert a manufactures model to something
that will keep LTSpice happy. I was hoping to use the DIAC that comes
with LTSpice but found out I have to supply my own model. Any hints
for a day-old user how to do this? So far it's a cool program.

--- In LTspice@..., "bunnyblues2001
<bunnyblues2001@y...>" <bunnyblues2001@y...> wrote:

I need a model for a gas discharge tube similar to the Siemens A81-
C90X, if anyone can help I'd appreciate it. I have just started to
use LTSpice and would like to know if there is any information out
there that shows how to convert a manufactures model to something
that will keep LTSpice happy. I was hoping to use the DIAC that

comes

with LTSpice but found out I have to supply my own model. Any hints
for a day-old user how to do this? So far it's a cool program.

Hello,
are you referencing this model?

It contains lines with non LTSpice syntax.
These lines have to be modified.

Do you have a datasheet or any SPICE parameter?

Best Regards
Helmut

--- In LTspice@..., "Helmut Sennewald
<helmutsennewald@y...>" <helmutsennewald@y...> wrote:

--- In LTspice@..., "bunnyblues2001
<bunnyblues2001@y...>" <bunnyblues2001@y...> wrote:

I need a model for a gas discharge tube similar to the Siemens A81-
C90X, if anyone can help I'd appreciate it. I have just started to
use LTSpice and would like to know if there is any information out
there that shows how to convert a manufactures model to something
that will keep LTSpice happy. I was hoping to use the DIAC that

comes

with LTSpice but found out I have to supply my own model. Any hints
for a day-old user how to do this? So far it's a cool program.

Hello,
are you referencing this model?

It contains lines with non LTSpice syntax.
These lines have to be modified.

Do you have a datasheet or any SPICE parameter?

Best Regards
Helmut

Thanks for the quick response. I have a few datasheets for different
devices. I don't now what parameters I'll need but not knowing has
never stopped me from giving it a shot.

I need a model for a gas discharge tube similar to the Siemens A81-
C90X, if anyone can help I'd appreciate it. I have just started to
use LTSpice and would like to know if there is any information out
there that shows how to convert a manufactures model to something
that will keep LTSpice happy. I was hoping to use the DIAC that comes
with LTSpice but found out I have to supply my own model. Any hints
for a day-old user how to do this? So far it's a cool program.


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Regards

Brian

--
Brian Howie | Tel: 0131 343 5590
BAE SYSTEMS | Fax: 0131 343 5050
Sensor Systems Division | Email brian.howie@...
Silverknowes | bhowie@...
Edinburgh EH4 4AD | Web site www.baesystems.com

On Thu, 13 Feb 2003 20:55:11 -0000, bunnyblues2001@... wrote:

I need a model for a gas discharge tube similar to the Siemens A81-
C90X, if anyone can help I'd appreciate it. I have just started to
use LTSpice and would like to know if there is any information out
there that shows how to convert a manufactures model to something
that will keep LTSpice happy. I was hoping to use the DIAC that comes
with LTSpice but found out I have to supply my own model. Any hints
for a day-old user how to do this? So far it's a cool program.

Spectrum Software (makers of MicroCap) has an application note
concerning gas tubes at


While the syntax might be different from LTSpice, the schematics
should get you started.
-----
Pat Lawler <pat.lawler@...>