1、N型锗正极引线负极引线外壳金属触丝负极引线正极引线N型硅P型硅铝合金小球底座SiO2正 极 引 线负 极 引 线N型 硅P型 硅iu0 iuIUrddd )1(eTSUuIiiu0Riu iuDU+-uiDUDUu DUu ui-+iu-+iuiu0mA1mA1010V0DDDDRUIUmA93.0mA107.010V7.0DDDDDRUUIUV88.0V)91.02.07.0(mA91.0mA2.0107.010DdonDdonDDDIrUUrRUUImA1.0mA101DDDRUImA03.0mA107.01DDDDRUUImA029.0mA2.0107.01donDDDrRUUI I E
2、=I EN+I EP。NNPBBVCCVRbRCebcIENEPIIEBINNPBBVCCVRbRCebcIENEPIIEBICNICICBOICBOCNCIII BCEIII BCII_基区复合的电流扩散到集电区的电流_BCII_BCEIIIBBBBCEIIIIII)1(_常数CEUBEBufi)(常数BiCECufi)(+i-uBE+-uBTCE+Ci0.40.2i(V)(uA)BE80400.80.6Bu=0VuCE 1VCEuiCCE(V)(mA)=60uAIBu=0BBII=20uABI=40uAB=80uAI=100uAIBBCII iCIBIB=0uCE(V)(mA)=20uAB
3、I=40uABI=60uABI=80uABI=100uA _BCII_ECII_BCiiECiiBICEui(V)IBC=100uAB=80uA=60uA(mA)IIB=0B=40uA=20uABII+-uo+u+-i放大电路u-R+SSRL信号源负载iiio+-uo+u+-i放大电路u-R+SSRL信号源负载iiio+i-oiii+-信号源S放大电路oS-LuR负载RuuRiRi+S+o负载LS+信号源-u-oiiiRR放大电路-+iuuRiRiouoRRo0,ooosL=uRiuR22 213212AAAADiouUUAuBE=UCCiBRBCCCRV+CTb1CCRbVL+uoR-u+-
4、ib2CcRCLL/RRR +R-uoTuRbRLic+L1RCCCRVioBECEuuuuuAceCECEcCCbBBbeBEBEuUuiIiiIiuUu +i-ube+-ubTce+ci+bucei+-+ibecu-二端口网络CEBBE11eUiuhce12eb11ebeUhIhUce22eb21ecUhhIICEBC21eUiihBCEBE12IeuuhBCEC22IeuihCECEBEBBBEBEBCEduuudiiuduIUCECECBBCCBCEduuidiiidiIU),(CEB1BEuifu),(CEB2Cuifi CECEBEBBBEBEBCEduuudiiuduIUCECE
5、CBBCCBCEduuidiiidiIUbeUbIcIceUCECEBBEBBE11eUUiuiuhBBCEBECEBE12IIeuuuuhCECEBCBC21eUUiiiihBBCECCEC22IIeuiuihce12eb11ebeUhIhUce22eb21ec UhhII+i-ube+-ubTce+ciebbbebbbbbbebe)(1)(1rriririiur+bceberbbrBICIIEber)mA(mV26)(1200EbeIrBBEQCCBQRUUIICQ IBQUCEQ=UCCICQRC uA)bebirIUcbccoRIRIUuAiUoUbecrRbeBiii/rRIUR0,
6、ooosL=uRIURcoRR CCB2B1B1BQRRRUUCCB2B1B1BQRRRUUCCB2B1B1BQRRRUUEbeLEbebLbiou)(1)(1RrRRriRiuuAebbebi)1(Ririu )/(LCboRRiu +ebbciRiRRb1berRuoC+-LRi-+ub2RRiicbiiiebebii)(1RriuR b2b1ii/RRRR b2b1ebe/)(1RRRr coRR +ebbciRiRRb1berRuoC+-LRi-+ub2RRiicbiiiCCB2B1B1BQRRRUUbebirIULbLcoRIRIUbeLiourRUUAcoRR beB2B1iii/
7、rRRIUReEQCCCEQRIVUUCCIBQRBUBEQIEQRE=0EBBEQCCBQ)1(RRUUIICQ=IBQIEQ bi IIeoII)1(beioiIIIIA所以所以EbbebEebebi)1(RIrIRIrIUEbEeo1RIRIU）（EbeEEbbebEbio)1()1()1()1(RrRRIrIRIUUAuEbebEebebiiiii)1(RrIRIrIIUIURRi=RB/rbe+(1+)RE ebbIIIIo令令Rs=Rs/RBEosbeosbeooRURrURrUI1/)()1()(111sbeEsbeEsbeEEsbeoooRrRRrRRrRRRrIUR2.6.2
8、自举式射极输出器自举式射极输出器Lbbebi)1(RIrIULbLeo)1(RIRIU1)1()1()1()1(LbeLLbbebLbiouRrRRIrIRIUUAbZbezIRrIbZbei)1(IRrIZbeLbebZbeLbbebiii1)1()1()1(RrRrIRrRIrIIUR电路的输出电流为电路的输出电流为ebboIIIILobeobeooRUrUrUIbeLLbeLbebeooo)1(1111rRRrRrrIURCCB2B1B1BQRRRUU输入电流输入电流 ei IILCCcoRRRIILCCLCCceioiRRRRRRIIIIA当当RCRL时时iAbebirIULbLooRIRIUbeLbbeLbiourRIrRIUUA1)1(bebbebiiirIrIIURRi=RE/Ri=RE/1berRo=RC
