3.1.1 BJT3.1 BJT3.1.2 BJT3.1.3 BJT3.1.4 BJT

3.1.1 BJT(Je) (Jc) BbBase EeEmitterCcCollector

end

3.1.2 BJT1. NPN

()BJT (Bipolar Junction Transistor) 3.1.2 BJT

2. IC= InC+ ICBOIB= IB - ICBO IC >> ICBOIE=IB+ IC

IE=IB+ IC2.

3. CE

3. CB

3. CC;IE=IB1

3. CC;CBCE

4. vI = 20mVVEEVCCVEBIBIEICvI+vEB+iC+iE+iBiE = -1 mAiC = iE = -0.98 mAvO = -iC RL = 0.98 V = 0.98

VBBVCCVBEIBIEICvI+vBE+iC+iE+iBvI = 20mV iB = 20 uAvO = -iC RL = -0.98 V = 0.984.

123.1.2 BJT# PNPNPN

3.1.2 BJTNPNPNPend

iB=f(vBE) vCE=const(2) vCE1V vCB= vCE - vBE>0 vBE IB(1) vCE=0V1. 3.1.3 BJT

(3) 1. 3.1.3 BJT

iC=f(vCE) iB=const2. :3.1.3 BJTend

3.1.4 BJT1.

(2) =IC/IBvCE=const3.1.4 BJT1.

(4) =IC/IE VCB=const3.1.4 BJT1.

3.1.4 BJT1.

2. ICEO (1) ICBO 3.1.4 BJT

(1) ICM(2) PCM PCM= ICVCE 3. 3.1.4 BJT

(3) V(BR)CBO V(BR) EBO V(BR)CEO V(BR)CBOV(BR)CEOV(BR) EBO 3. 3.1.4 BJT

end