Talk:Small signal model
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Should this article be renamed and cover both small and large signal models? — Omegatron 19:41, 5 November 2006 (UTC)
- No. I've never even heard of a latter type of model but there are plenty small signal models. If anything this article should be expanded on the different types of models. I know there is a bunch for BJTs and at least one for mosfets. It's a pretty big subject. Adam Y. 13:57, 15 November 2006 (UTC)
- Large signal models are what you use to model the more complete behavior of devices. For well characterized devices like BJTs and MOSFETs, there are good large signal models. For some newer devices (like those based on heterojunction technology; HBTs, HEMTs, etc), there do not yet exist very good large signal models. In general, the models used by circuit simulators are derived from large signal models, since the small signal models are mostly useful for quick circuit parameter estimation by designers. Edit: I agree that this page should probably be titled "circuit element modeling" or the like. That would broaden its scope and possibly allow for more content, though I cannot personally contribute heavily at the moment. -- mattb
@ 2006-11-15T16:54Z
- Large signal models are what you use to model the more complete behavior of devices. For well characterized devices like BJTs and MOSFETs, there are good large signal models. For some newer devices (like those based on heterojunction technology; HBTs, HEMTs, etc), there do not yet exist very good large signal models. In general, the models used by circuit simulators are derived from large signal models, since the small signal models are mostly useful for quick circuit parameter estimation by designers. Edit: I agree that this page should probably be titled "circuit element modeling" or the like. That would broaden its scope and possibly allow for more content, though I cannot personally contribute heavily at the moment. -- mattb
