Mail Archives: geda-help/2013/05/14/14:32:51
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On May 14, 2013, at 11:03 AM, Julio Ariel Romero P=E9rez wrote:
> Hi!
> I'm attempting to simulate an oscillator circuit
Often a subtle business.
> and I need specified some initial conditions for simulation. =
Concretely I want to specifie an initial voltage in a capacitor. I use =
the SPICE-directive block in gschem
Which netlist back end?
Which version of SPICE?
Can you show us your SPICE netlist?
> and for simulation I check the option "Use ICs" in GspiceUI,
Can you tell what GspiceUI is actually telling SPICE? I don't use =
GspiceUI: to me it's just added complexity for no added functionality.
> however in the simulation results the capacitor voltage does not begin =
in the specified voltage value (4.5V). I have spent a lot of time =
solving this problem with not result.
>=20
> regards
> Julio A. Romero
John Doty Noqsi Aerospace, Ltd.
http://www.noqsi.com/
jpd AT noqsi DOT com
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<html><head></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space; =
"><br><div><div>On May 14, 2013, at 11:03 AM, Julio Ariel Romero P=E9rez =
wrote:</div><br class=3D"Apple-interchange-newline"><blockquote =
type=3D"cite"><div dir=3D"ltr">Hi!<br><div class=3D"gmail_quote"><div =
dir=3D"ltr"><div =
style=3D"font-family:arial,sans-serif;font-size:12.727272033691406px">I'm =
attempting to simulate an oscillator =
circuit</div></div></div></div></blockquote><div><br></div>Often a =
subtle business.</div><div><br><blockquote type=3D"cite"><div =
dir=3D"ltr"><div class=3D"gmail_quote"><div dir=3D"ltr"><div =
style=3D"font-family:arial,sans-serif;font-size:12.727272033691406px"> =
and I need specified some initial conditions for =
simulation. Concretely I want to specifie an initial voltage in a =
capacitor. I use the SPICE-directive block in =
gschem</div></div></div></div></blockquote><div><br></div>Which netlist =
back end?</div><div>Which version of SPICE?</div><div>Can you show us =
your SPICE netlist?</div><div><br><blockquote type=3D"cite"><div =
dir=3D"ltr"><div class=3D"gmail_quote"><div dir=3D"ltr"><div =
style=3D"font-family:arial,sans-serif;font-size:12.727272033691406px"> =
and for simulation I check the option "Use ICs" in =
GspiceUI,</div></div></div></div></blockquote><div><br></div><div>Can =
you tell what GspiceUI is actually telling SPICE? I don't use =
GspiceUI: to me it's just added complexity for no added =
functionality.</div><br><blockquote type=3D"cite"><div dir=3D"ltr"><div =
class=3D"gmail_quote"><div dir=3D"ltr"><div =
style=3D"font-family:arial,sans-serif;font-size:12.727272033691406px"> =
however in the simulation results the capacitor voltage does not begin =
in the specified voltage value (4.5V). I have spent a lot of time =
solving this problem with not result.</div>
<div><br></div><div style=3D"">regards</div><div style=3D"">Julio A. =
Romero</div></div></div>
</div>
</blockquote></div><br><div>
<span class=3D"Apple-style-span" style=3D"border-collapse: separate; =
border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-align: auto; =
-khtml-text-decorations-in-effect: none; text-indent: 0px; =
-apple-text-size-adjust: auto; text-transform: none; orphans: 2; =
white-space: normal; widows: 2; word-spacing: 0px; "><span =
class=3D"Apple-style-span" style=3D"border-collapse: separate; =
border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-align: auto; =
-khtml-text-decorations-in-effect: none; text-indent: 0px; =
-apple-text-size-adjust: auto; text-transform: none; orphans: 2; =
white-space: normal; widows: 2; word-spacing: 0px; "><p style=3D"margin: =
0.0px 0.0px 0.0px 0.0px"><font face=3D"Helvetica" size=3D"3" =
style=3D"font: 12.0px Helvetica">John Doty<span =
class=3D"Apple-converted-space"> <span =
class=3D"Apple-converted-space"> </span><span =
class=3D"Apple-converted-tab"> <span =
class=3D"Apple-converted-space"> </span></span></span>Noqsi =
Aerospace, Ltd.</font></p><p style=3D"margin: 0.0px 0.0px 0.0px =
0.0px"><a href=3D"http://www.noqsi.com/">http://www.noqsi.com/</a></p><p =
style=3D"margin: 0.0px 0.0px 0.0px 0.0px"><font face=3D"Helvetica" =
size=3D"3" style=3D"font: 12.0px Helvetica"><a =
href=3D"mailto:jpd AT noqsi DOT com">jpd AT noqsi DOT com</a></font></p><br =
class=3D"Apple-interchange-newline"></span></span>
</div>
<br></body></html>=
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