Creating a Linear Model of a BJT (2N3906)

[TimNJ]

Hi all,

I'm working on a lab report that asks us to characterize a 2N3906. So far, I've gotten the collector current/collector-emitter voltage relationship and calculated the gain at Vce= 1V. The lab then asks to create a piece-wise linear model of the BJT (using gain ??). It asks to separate the data into a few segments.

What relationship should I use to characterize the 2N3906? Gain vs Ic? Am I off the mark here?

Thanks a lot. Really appreciate any help,
Tim

The part of the lab I'm having trouble with is attached.

[T3sl4co1l]

beta(Ic), so it would seem.

I'd have to see your data series to suggest some likely segments, but I'd just as well make it a constant 200 or so, for reasons that are well and truly beyond the scope of this early and overly simplified lab.

Tim

[TimNJ]

Thanks Tim. I did all the work for gain vs. Ic, and I think that's what the lab was looking for. Had to dig back into my algebra toolbox for linearization, but not too bad. Thanks for your input.