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| BJT output I-V characteristic |
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| amir.razzaqi:
--- Quote from: T3sl4co1l on October 02, 2023, 03:13:46 pm ---I don't see in your screenshots where Ib increased from increased Vcc. Tim --- End quote --- Sorry, it was a typo. I mean "decrease" |
| Sredni:
To add confusion, let me say that in certain conditions you can actually see base current change with VCE. If you do not pull the base toward a fixed voltage, VBE can be seen changing appreciably with VCE. You need a very big resistance in base, so some might argue that VBE actually changes when IB=0, but if I can measure VBE with an ordinary voltmeter https://www.eevblog.com/forum/testgear/what-is-the-internal-resistance-of-the-uni-t-ut139c-%28on-the-mv-range%29/ (see page 2. the last pictures) ...then we must conclude that a base current proportional to the base-emitter voltage is actually flowing due to the applied VCE. |
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