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From: "Helmut Sennewald"
Subject: Re: LT SwitcherCAD Transient Analysis
Date: Fri, 13 Sep 2002 00:45:01 +0200
X-Newsreader: Microsoft Outlook Express 6.00.2800.1106
"Helmut Sennewald" schrieb im Newsbeitrag
> "David Huhn" schrieb im Newsbeitrag
> > Does anyone know if LT SwitcherCAD experiences a drastic slowdown on the
> > transient analysis as the circuit complexity increases. I simulated a
> > few simple circuit just to become familiar with the interface and they
> > came up in no time at all, however, with my h-bridge circuit, I am only
> > getting about 1 ns of sim time/second.
> > I have played around with varying resolutions and simulation times,
> > however, that has not made any significant difference. Is this a
> > problem that other people have experienced?
> Hello David,
> I have done many simulation with SwitcherCAD and so I am
> curious to see your circuit.
> Can you provide me your SwitcherCAD .asc file ?
> Here you have my NDA (non disclosure agreement) if necessary.
thanks for the circuit. Your circuit itself had some design
mistakes and also you included the IRF3710 Mosfet as a simple
MOSFET model. It is not a good idea in this case because
IRF's model is a subcircuit consisting of many parts.
By the way, your MOSFET behaved like having 1000 times the
specified gate charge.
I will send you the new schematic, the symbol and the .lib file.
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