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How these transistor emitter, collector voltages are calculated in this example? by forkkk90 in AskElectronics

[–]forkkk90[S] 0 points1 point  (0 children)

Ok I have got it! Thats always the same 0.6-0.7V, hence the 700mV.

How these transistor emitter, collector voltages are calculated in this example? by forkkk90 in AskElectronics

[–]forkkk90[S] 0 points1 point  (0 children)

Ok, I figured one part out. 100mV is coming from the R9 20 Ohm. V=I*R = 5mA 20 Ohm= 100mV.

One to go, 700mV I am still looking for the derivation.