Sunday, 21 April 2019

transistors - BJT gain.Width of base region vs collector current


We know that in active region Ic=beta(Ib),so it means that as Ib decreases the Ic should decrease proportionally,but the early effect states that as we increase Vce the width of the base region decreases hence less recombination ( less base current as less electrons travel into base ,for PNP) therefore the Ic increases.. Aren't these two concepts contradicting or am i missing something ?Explain for common emitter bias. Please help me clear my doubts.Thanks in advance.




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