On Wed, May 25, 2011 at 6:36 PM, Gerhard Fiedler wrote: > I is only V/R for a linear R, or within a linear region of a non-linear > R. The C-E path of a bipolar transistor that is used as a switch and is > "on" is not usually in a linear region, differently from a FET. >From what I understand (I could be wrong), I =3D V/R for any point, as in, when a voltage V is applied across a resistance R, then the current flowing through R is equal to I =3D V/R. Are you saying the internals of a BJT viol= ate ohm's "law"? I mean, the violations of the law have been discussed on this list before, if I can remember correctly. I'm just not understanding the part about the linear region. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .