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Forum index » Electronix » cad
UC384X Spice
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other6614
electronics forum beginner


Joined: 21 Oct 2009
Posts: 2

PostPosted: Wed Oct 21, 2009 8:21 pm    Post subject: UC384X Spice Reply with quote
Hi all, i came across this board while searching for a spice file of the popular SMPS PWM controller,
http://electro4um.com/about692-asc.html
However, copying and pasting that code and generating a part symbol for it in Orcad Pspice has generated a few errors, i assume its because i dont know what i'm doing when it comes to SPICE syntax. Anyone have this part or even a similar PWM controller spice model i can use to just close the loop on a simulation. Thanks.

The warnings and errors seem to be regarding XTOF1 and XTOF2?

Code:

WARNING -- <X_XU1.XTOF1.VH> not a subcircuit param

WARNING -- <X_XU1.XTOF1.VT> not a subcircuit param

WARNING -- <X_XU1.XTOF2.VH> not a subcircuit param

WARNING -- <X_XU1.XTOF2.VT> not a subcircuit param

ERROR -- Less than 2 connections at node X_XU1.XTOF1.5
ERROR -- Less than 2 connections at node X_XU1.XTOF1.VH
ERROR -- Less than 2 connections at node X_XU1.XTOF2.5
ERROR -- Less than 2 connections at node X_XU1.XTOF2.VH
ERROR -- Node X_XU1.XTOF1.5 is floating
ERROR -- Node X_XU1.XTOF1.VH is floating
ERROR -- Node X_XU1.XTOF2.5 is floating
ERROR -- Node X_XU1.XTOF2.VH is floating
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other6614
electronics forum beginner


Joined: 21 Oct 2009
Posts: 2

PostPosted: Thu Oct 22, 2009 10:20 pm    Post subject: Reply with quote
Well, wasnt able to come up with the SPICE text file, but found this model for ltspice, can't use with Pspice, but i'll give ltspice a try.

Code:
http://tech.groups.yahoo.com/group/LTspice/files/adventures%20with%20analog/my%20model%20files/


need to register for that group first
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anselgrey23
electronics forum beginner


Joined: 02 Aug 2010
Posts: 4

PostPosted: Mon Aug 02, 2010 8:55 am    Post subject: Reply with quote
My first suggestion for Itto try to find a model from TI, Because they usually provide PSpice models when they do provide we. I couldn't find one for the 3842, however. I am truly sure they have one, because AEI makes all their models and made one for IsSpice.
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