EXAMPLE 12.1 Calculate the input power, output power, and efficiency of the amplifier circuit in Fig. 12.5 for an input voltage that results in a base current of 10 mA peak. Vec = 20 V Ve 20V Re 1000 202 900- 800- Rg I kQ Re= 20 2 700- de load line 500 B = 25 400- Operating point 300 10 200 100 10 15 20 25 V (V) Va-Vec Figure 4.7 Example for Series-fed Class A Amplifier circuit Figure 4.8 Plotting of the DC load line
EXAMPLE 12.1 Calculate the input power, output power, and efficiency of the amplifier circuit in Fig. 12.5 for an input voltage that results in a base current of 10 mA peak. Vec = 20 V Ve 20V Re 1000 202 900- 800- Rg I kQ Re= 20 2 700- de load line 500 B = 25 400- Operating point 300 10 200 100 10 15 20 25 V (V) Va-Vec Figure 4.7 Example for Series-fed Class A Amplifier circuit Figure 4.8 Plotting of the DC load line
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![4.12 Example on Series-Fed Class A Amplifier
EXAMPLE 12.1 Calculate the input power, output power, and efficiency of the amplifier
circuit in Fig. 12.5 for an input voltage that results in a base current of 10 mA peak.
Vcc = 20 V
Ale (mA)
Vee
le-
Re
20 V
40
- 10000
20 12
900
800
30
Rc = 20 2
RB
I k2
C;
de lead line
600
20
B = 25
400
Operating point
300
10
200)
100
=0 mA
10
15
20
25
VE (V)
Vete
Ver- Vee
Figure 4.7 Example for Series-fed Class A Figure 4.8 Plotting of the DC load line
Amplifier circuit](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb715d94d-b566-4b1c-af18-2d94caa0ee15%2F2d50f5a9-8037-4a48-84a7-6f873868b3fb%2Fqf8id7k_processed.jpeg&w=3840&q=75)
Transcribed Image Text:4.12 Example on Series-Fed Class A Amplifier
EXAMPLE 12.1 Calculate the input power, output power, and efficiency of the amplifier
circuit in Fig. 12.5 for an input voltage that results in a base current of 10 mA peak.
Vcc = 20 V
Ale (mA)
Vee
le-
Re
20 V
40
- 10000
20 12
900
800
30
Rc = 20 2
RB
I k2
C;
de lead line
600
20
B = 25
400
Operating point
300
10
200)
100
=0 mA
10
15
20
25
VE (V)
Vete
Ver- Vee
Figure 4.7 Example for Series-fed Class A Figure 4.8 Plotting of the DC load line
Amplifier circuit
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