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l . W hat i s t he s tabilityfictor( SF) f or t he circuit o f F igure6 2?

l. What is the stabilityfictor (SF) for thecircuit of Figure 62? (2) n.34 (24v) (t) 27.e3 ltr",*, =tt l I hpg 11rr1 = l5O I ln'o =2on I lvBE=0.6v I (3) r0.0s I t t t I I t t I t I I Rc (22 I Vnn r_o "'g +t- kn) + (2af) (2 ttf) Cz REr 15011) Rar (4.7 krl) Rez (22O n) Fig. 62 2. Calculate the Q-point conditions, (Vss, Ic, Is), for the circuit of Fie. 62. (l) IB = 31.6 p.A; lc = 4.74 mA; Vce = I1.8 V (2) In = 5.92 pA; Ic = 0.44 mA: Vce = 22.9 v (3) Ia = 33.2 pA;Ic = 4.98 mA: VcE = ll.2 V ,l rt I 1 J- CE TrrV,t I : l
calculate the input and output impedance of the amplifier of Fig. 62. 83 (l) Z = 3.6kO; L=2.2kO (2)Z=4.7kO;L=2.2kO (3)Z=3.6kO;Z=l.8kg calculate the current and voltage gain of the cE amplifier of Fig. 62. (l) Ar = 3.82; A" = - 10.61 (2) Ai = 3.82; A, = - 12.67 (3) Ai = 4.99; A" = - 10.59 Increasing Re , without bypassing any part of it to ground via Ce, will (l) increase SF, reduce Zi, increase Ai, and increase A". (2) reduce SF, increase Zi, increase Ai, and reduce A". (3) reduce SF, increase Zi, reduce Ai, and reduce A,. Which of the 5 AC perfonnance parameters-Zi, Zo, Ai, A", Ao-is most completely stabilized by.the emitte5feedback technique circuit of Fig. 62? (t) z (2) L (3) Ar (a) e" (5) Ao Figure 63 is the DC equivalent circuit for the amplifier of Figure 64. Determine the values of the resistors, Rs', RE', and Rc', as well as the sup- ply voltages Va'and Vc'. (l) Ra'= 9.86kO; Rp'= 2.l6k0; Rc'= l.45kO; Yc'= 24Y; Vs'= 0V (2) Ra'= 9.86kO; Re'= 660Oi Rc': l.45kO; Vc' = 22.9Y:yn,= 7.17y (3) Re' = 9.86kO; Rr' = 2. l-6!O; Rc' = l.45kO; Vc' = 22.9Y; Vs' = 7.liY 3. 4. 6. 7. -) Fig. 63 Equivolcnl DC-bior circuif for omplificr in Fig. 64.
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1. 2
2. 1
3. 1 (Revised)
4. 2 (Revised)
5. 3
6. 4 (Revised)
7. 2 (Revised)
8. 1
9. 1 (Revised)
10. True
11. 3
12. 4
13. 2
14. 1 (Revised)
15. 2
16. NO
17. 3...

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