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EE330 Final F12
1) For the figures shown above, determine the voltages V1 V8
!iven" # $ %0 V&E $ 0 ' V ( $ 0 8 V*E+ - $ 0 3 V Keep
voltage calculations accurate to 10 mV !!!!
.ote" ( is ./- $ 1, and the base urrent & is not
negligible
R1 thru R6 put Q1 and Q2 into saturation !!! fix
1 $ 104 2 $ 104 3 $ 1 4 5 6 $ %00 5
% $ 3%4 7 $ 3 4 5
' $ 604 8 $ %00 5 1 $ 1 % m
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
Q1
R1
R2
R3
R4
V1
V2
V3
+15V
Q2
R6
R5
V4
V5
+15V
Q3
R8
R7
I1
+15V
V6
V7
V8
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2) For the ir uit shown below, determine the following small
signal 9aramet
a) in b) out ) gm d) !v e) vo
!iven" # $ 100, ( $ 1, :V&E: $ 0 ' V, r o $ ;, o $ ;, V- $
2% mV
assume the urrent sour e has infinite out9ut im9edan e
5kohm
1mAVsig
5kohm
+10 V
-10 V
Rsig
25ohm
Vout
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
3) n .10 V, and a urr2% ? in@e ted into the base
a) *al ulate the range of olle tor and emitter urrents that an
result
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b) *al ulate the maAimum 9ower dissi9ated b= the transistor
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
6) For the figure shown below, determine the following small
signal 9aramet
a) in b) v bBvsig ) voutBv b d) voutBvsig e) v
!iven" # $ 100, ( $ 1, :V&E: $ 0 ' V, r o $ ; , o $ ;, V- $
2% mV
assume the urrent sour e has infinite out9ut im9edan e
1mA
Vsig1
5kohm
+10 V
Vout
- 10 V
1kohm
20kohm
5kohm
RE
25ohm
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$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
%) e9eat C6) above with the E resistor shown in the figure above
re9la ed wto ground or a Dero ohm resistor
