On Sun, Jun 19, 2011 at 7:35 AM, Spehro Pefhany wrote: > The transistor saturates and Vce become more-or-less constant, decreasing > slowly with decreasing collector current, given the constant base current= .. > That's what's happening. > Thanks. Now I understand the Vce saturation. I didn't realize it was there before. > I don't think that viewing it as an "impedance" (ratio of v/i) is > particularly helpful to gaining understanding in this kind of situation. > --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .