_____________JML Electronics Study Lab3: Ex1 ______________ This is a transistor amplifier with bias. The output Ic current is the amplification factor, beta times the input current Ib. Input your curcuit values.

Rb1 = ohms.    Rb2 = ohms.    Re = ohms.    Rc = ohms. beta = .     Ib=(Vcc-Vbe/(Rb+B*Re)=microamps.     Ic =B*Ib=ma.     Vce=Vcc-IcRc-IeRe = v.     

Ex:1     Try Rb=400k     Rc=1k     Re=1k     beta=100 Ex:2     Try Rb=400k     Rc=1k     Re=1k     beta=80 Ex:3     Try Rb=100k     Rc=1k     Re=1k     beta=100 Did you notice no change in Ex:2 and Ex:3? Why? Ex:4     Try Rb=400k     Rc=50k     Re=1k     beta=100    __________________________________________________________________________________________   (c)2005 Joe Evans copywrite NO PART OF THIS WEBPAGE CAN BE USE OR COPIED WITHOUT THE OWNERS CONCENT.  ALL VIOLATORS WILL BE TRACKED DOWN AND WILL FACE SEVERE PUNISHMENT.