Modeling the SG linear decay

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Marco Denicolai by way of Terry Fritz <twftesla-at-uswest-dot-net>" <marco.denicolai-at-tellabs-dot-com>

Hello all,

I would like to include a SIMPLE model of the SG in my model of Thor in
order to linearize the decay profile. That way, I would get a quite
similar waveshape from the model and from my measurements.

Playing with Mathcad I understood I need a negative resistance (for the
SG); I simulated that with Microsim using a voltage-controlled resistor,
an equation block and a current-to-voltage block. I got the waveshape
quite much better and linearized but...

I would like to know if some of you is aware of the equation(s)
regulating the SG V-I profile, or some approximation of them. That would
be easier than to start digging in the library :)

Regards


-- 
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 Marco Denicolai           Senior Design Engineer 
 Tellabs Oy                tel: +358 9 4131 2769
 DSL Products              mobile: +358 50 353 9468
 Sinikalliontie 7          fax: +358 9 4131 2410
 02630 Espoo  FINLAND      email: marco.denicolai-at-tellabs-dot-com
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