Ice BIB VCRo =Vcc -(Rc+RE)Ice 关于R。的折算关系: E-Ic R R 根据电路有: _V_IERE-(1+B)laRs=(I+B)Re RE IB CQ B I I CEQ CC C E CQ V = V − (R + R )I 关于RE 的折算关系: 根据电路有: E B B E B E E B E E R I I R I I R I V R (1 ) (1 ) = + + = = = RE IE IC IB E IB IC RE RE E E