0195136047.pdf

388 SEMICONDUCTOR DEVICES

Figure P7.3.9

Q 2

iE 2

iB 2

e

iE 1

b Q 1

c

iC 2

iCC

iC 1

iB 1

Figure P7.3.10

RB RC

−VCC

Figure P7.3.11

(a) FindICandVCEat the operating point.

(b) Determine the power supplied by theVCC

source.

7.3.12In the circuit of Figure P7.3.12 the transistor has

β=99 andVBE= 0 .6V.ForVCC=10 V,

RF=200 k, andRC= 2 .7k, determine the

operating point values ofVCEandIC.