Question

+3V Question 6: (15 pts) 9.1 ks 3 5.1.2 For the BJT circuit as shown, it contains a pnp (01) and a npn (Q2) BJT transistors, please find approximated values for the labeled node voltages V1, V2,V3, V4, Vs having the gain parameter B = 100. (Note: Early effect is ignored here; Veel are assumed to be 0.7V for both pnp and npn devices.) 100 kn vor o, 9.1k0 F or 34.3k

Answer 1

B-100) Tin t3 Up +3VA M Solk BEL= 0.tv KVL 3-14,99.1k ) - 0-2- I B, (look) IG= 10 118 & IG= 3-0. ? = qolkt look TVC 0.2279mA Vi = Il Clook) = (look-> V = 0.22568 V V2=0-7+ Vi = 0.92568 U Nodal ailk veroo7+31 4.3k I = rat3 a vat 2.3 golk " 4 34:34 434,3 (vcrt3)+1:1(84+2+3) (de = 100 IE 1 0.22568mA = folk) (4 34.3k) = 0.22568mt/ 1 891-916 = q (443:4) + 1323.8] XVG = -0.974 a v35-0974 Vy - VG-0.= -106740 I€2= Vy-f3rd FC2 = 100 IE2 = 0.3053 mA = 3 vs Silk *15=1.4428 V 7 20-3083m A 4.3k