是不是我讲的不太详细呢?, U2 U$ P$ K t, J; q
when the minority carriers density inject into base region approaches the majority cairriers density thereby increaseing the majority carrier charge in the base ,thus reduce the emitter efficiency and beta " C3 W" I i0 U# n3 V" D+ e, x% oi can't understand it ,would you please help me ,thank you !