[sdiy] LTSpice macromodell help

[Harry Bissell]

It does handle behavioral expressions. Thanks Phil, that will do it !

H^) harry


----- Original Message -----
From: Phil Macphail <phil.macphail at liivatera.com>
To: Harry Bissell <harrybissell at wowway.com>
Cc: synthdiy <synth-diy at dropmix.xs4all.nl>
Sent: Wed, 13 Apr 2011 12:02:14 -0400 (EDT)
Subject: Re: [sdiy] LTSpice macromodell help

If LTspice can handle behavioral expressions, then tanh will give you the limiting function you require. I don't know this flavour of Spice, but it is my preferred method of building ideal components that converge well and don't wander to silly node voltages,

Phil

On 13 Apr 2011, at 16:47, Harry Bissell <harrybissell at wowway.com> wrote:

> Hi all... yes its synth-related
> 
> I'm trying to come up with a macromodel of a voltage limiter circuit. Electronic Workbench includes
> such a device, LTspice does not.
> 
> The object would be to limit input voltages to a range between Vpos and Vneg that I would set. Using
> a series resistor, two diodes, and two voltage sources is a crude way to do it. I'm looking for something
> much more elegant.
> 
> Any takers ???
> 
> H^) harry
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-- 
Harry Bissell & Nora Abdullah 4eva