1- What is the value of Ve required? 2- The value of R, requied is: се 3- Assume VBE=0, the value of Rg is needed to be:

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1- What is the value of Vee required?
2- The value of R, requied is:
3- Assume VBE=0, the value of RB is needed to be:
4- What is the approximate value of A.C. o/p power for a 20mA (p-p) A.C. input
base current.
5- What is the D.C input power?
6- What is the efficiency for the given input?
fig(1) series fed class-A power amplifier for maximum o/p power
4Ic (mA)
40
1000
Vcc
900
800 -
30
700-
load line
Rg
RC
600
20
500 -
B-25
400
Operating point
300
10
200
100
Ig =0 mA
10
15
20
25
VCE (V)
VCE = Vcc
(a)
(b)
Transcribed Image Text:1- What is the value of Vee required? 2- The value of R, requied is: 3- Assume VBE=0, the value of RB is needed to be: 4- What is the approximate value of A.C. o/p power for a 20mA (p-p) A.C. input base current. 5- What is the D.C input power? 6- What is the efficiency for the given input? fig(1) series fed class-A power amplifier for maximum o/p power 4Ic (mA) 40 1000 Vcc 900 800 - 30 700- load line Rg RC 600 20 500 - B-25 400 Operating point 300 10 200 100 Ig =0 mA 10 15 20 25 VCE (V) VCE = Vcc (a) (b)
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