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From: "Mihaly Koltai (axelero)" <mkoltai@axelero.hu>
To: =?iso-8859-1?Q?Tibor_Horv=E1th?= <horvatht@mail.datanet.hu>
Subject: Fw: Technical support [03110886D6] PWL hiba ?
Date: Mon, 10 Nov 2003 12:02:22 +0100
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Szia Tibi,

Olvasd el az al=E1bbit, =E1llit=F3lag fejel lefel=E9 van. Ha a Spice =
interpreter birja a nagy t=E1bl=E1zatokat akkor ma megk=E9rhetj=FCk =
Raimundot hogy az Export gy=E1rtson PWLmakr=F3kat is.

=DCdv

Misi



----- Original Message -----=20
From: John Robson=20
To: Dr.Michael Koltai=20
Sent: Monday, November 10, 2003 5:01 AM
Subject: Re: Technical support [03110886D6]


Michael Koltai,

I have now looked at the PWL.TSC example and all is now clear.  In my =
ignorance I did not know that SPICE had a PWL function!

You might like to note that the waveform illustrated in the PWL =
schematic is inverted (upside down). I found this a bit disconcerting =
when trying to understand the macro text.  But it all worked OK when I =
connected it to a voltmeter and looked at the output.  I wondered a bit =
about the transition at=20
1 ms but then noticed that you have the time as 0.955m rather than =
0.995m (no doubt just to keep the user on his/her toes!).  You might =
like to correct PWL Maco to PWL Macro as well.

If you wonder what I am using TINA for, it is to simulate photoreceptor =
and retinal cell function.

Thanks again,  John Robson


At 12:07 AM 11/10/2003 +0000, you wrote:

  Question or Problem=20
  Program TINA=20
  Category Usage=20
  Title Previous result as an input signal=20
  Question/Problem Is it possible to use a previous result as an input =
signal?=20
  Answer/Solution Unfortunately this is not too easy. One possibility to =
do it with a=20
  PWL Spice mactro, see PWL.TSC in the Examples folder of TINA.=20
  You can export results as a text file and use those values - after =
some editing -=20
  in the macro.=20



  If you need further assistance please feel free to contact me.

  Best regards,
  Dr. Michael Koltai=20
  DesignSoft
*********************
John G. Robson PhD  FRS
Senior Research Professor in Vision Science
College of Optometry, 505 J. Davis Armistead Bdg., University of =
Houston, HOUSTON  TX 77204-2020
Office tel: 713 743 1807
Lab tel: 713 743 0747

Cambridge:   Gonville and Caius College,   Trinity St,    Cambridge CB2 =
1TA

Home:  Herring's House, Wilbraham Rd, Fulbourn, Cambridge CB1 5EU, UK =
(Tel: +44 1223 880277)

e-mail (always the best way to contact me as I am often somewhere =
else!):  JGR11@cam.ac.uk



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charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.2733.1800" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Szia Tibi,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Olvasd el az al=E1bbit, =E1llit=F3lag =
fejel lefel=E9 van.=20
Ha a Spice interpreter birja a nagy t=E1bl=E1zatokat akkor ma =
megk=E9rhetj=FCk Raimundot=20
hogy az Export gy=E1rtson PWLmakr=F3kat is.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>=DCdv</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Misi</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV style=3D"FONT: 10pt arial">----- Original Message -----=20
<DIV style=3D"BACKGROUND: #e4e4e4; font-color: black"><B>From:</B> <A=20
title=3Djgr11@cam.ac.uk href=3D"mailto:jgr11@cam.ac.uk">John Robson</A> =
</DIV>
<DIV><B>To:</B> <A title=3Dm.koltai@mail.datanet.hu=20
href=3D"mailto:m.koltai@mail.datanet.hu">Dr.Michael Koltai</A> </DIV>
<DIV><B>Sent:</B> Monday, November 10, 2003 5:01 AM</DIV>
<DIV><B>Subject:</B> Re: Technical support [03110886D6]</DIV></DIV>
<DIV><BR></DIV>Michael Koltai,<BR><BR>I have now looked at the PWL.TSC =
example=20
and all is now clear.&nbsp; In my ignorance I did not know that SPICE =
had a PWL=20
function!<BR><BR>You might like to note that the waveform illustrated in =
the PWL=20
schematic is inverted (upside down). I found this a bit disconcerting =
when=20
trying to understand the macro text.&nbsp; But it all worked OK when I =
connected=20
it to a voltmeter and looked at the output.&nbsp; I wondered a bit about =
the=20
transition at <BR>1 ms but then noticed that you have the time as 0.955m =
rather=20
than 0.995m (no doubt just to keep the user on his/her toes!).&nbsp; You =
might=20
like to correct PWL Maco to PWL Macro as well.<BR><BR>If you wonder what =
I am=20
using TINA for, it is to simulate photoreceptor and retinal cell=20
function.<BR><BR>Thanks again,&nbsp; John Robson<BR><BR><BR>At 12:07 AM=20
11/10/2003 +0000, you wrote:<BR>
<BLOCKQUOTE class=3Dcite cite=3D"" type=3D"cite">
  <DIV align=3Dcenter>Question or Problem <BR><I>Program</I> TINA=20
  <BR><I>Category</I> Usage <BR><I>Title</I> Previous result as an input =
signal=20
  <BR><I>Question/Problem</I> Is it possible to use a previous result as =
an=20
  input signal? <BR><I>Answer/Solution</I> Unfortunately this is not too =
easy.=20
  One possibility to do it with a <BR>PWL Spice mactro, see PWL.TSC in =
the=20
  Examples folder of TINA. <BR>You can export results as a text file and =
use=20
  those values - after some editing - <BR>in the macro. =
<BR></DIV><BR><BR>If you=20
  need further assistance please feel free to contact me.<BR><BR>Best=20
  regards,<BR>Dr. Michael Koltai <BR>DesignSoft</BLOCKQUOTE><X-SIGSEP>
<P></X-SIGSEP><FONT=20
face=3D"Times New Roman Baltic, Times">*********************<BR>John G. =
Robson=20
PhD&nbsp; FRS<BR>Senior Research Professor in Vision Science<BR>College =
of=20
Optometry, 505 J. Davis Armistead Bdg., University of Houston, =
HOUSTON&nbsp; TX=20
77204-2020<BR>Office tel: 713 743 1807<BR>Lab tel: 713 743=20
0747<BR><BR>Cambridge:&nbsp;&nbsp; Gonville and Caius =
College,&nbsp;&nbsp;=20
Trinity St,&nbsp;&nbsp;&nbsp; Cambridge CB2 1TA<BR><BR>Home:&nbsp; =
Herring's=20
House, Wilbraham Rd, Fulbourn, Cambridge CB1 5EU, UK (Tel: +44 1223=20
880277)<BR><BR>e-mail (always the best way to contact me as I am often =
somewhere=20
else!):&nbsp; JGR11@cam.ac.uk<BR></FONT></P></BODY></HTML>

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