al davis wrote: > I assume you are aware that those model parameters need to be > taken with a bit of suspicion. For example, the NPN gives > a "Bf" value (forward beta) of 416.4. For real transistors > this parameter varies widely. Any number from 200 to 500 would > be believable, and they do vary this much in production. Other > parameters vary like this too. I just picked this one because > the beta of a transistor is well understood. > Beta also varies with collector current, do the simulators (and these models) account for this behavior? In fact, the curves for different transistors (beta vs. IC) are so incredibly different - some flat, some very peaky before rolling off.
Just curious. gene _______________________________________________ geda-user mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
