The transistor in the circuit below has 3 = 100 and VBE = 0.7 V in forward bias. Ignore the Early effect and use VT = 25 mV. 6 V O + 6 V 10 k Vsig o Vout a) Is this amplifier a common-emitter, common-base, or common-collector configuration? Determine the collector current and show that the transistor is biased in the active mode. b) Calculate the amplifier's small-signal gain A, the input resistance Rin, and the output resistance Rout- Don't include the 10 k resistance of the signal source or the 1 k load resistor. But do include the effect of the 180 k biasing resistor. c) Calculate the system gain; G = vout/Vsig- 180 k 1k
The transistor in the circuit below has 3 = 100 and VBE = 0.7 V in forward bias. Ignore the Early effect and use VT = 25 mV. 6 V O + 6 V 10 k Vsig o Vout a) Is this amplifier a common-emitter, common-base, or common-collector configuration? Determine the collector current and show that the transistor is biased in the active mode. b) Calculate the amplifier's small-signal gain A, the input resistance Rin, and the output resistance Rout- Don't include the 10 k resistance of the signal source or the 1 k load resistor. But do include the effect of the 180 k biasing resistor. c) Calculate the system gain; G = vout/Vsig- 180 k 1k
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Transcribed Image Text:The transistor in the circuit below has 3 = 100 and VBE = 0.7 V in forward bias. Ignore the
Early effect and use VT = 25 mV.
6 V O
+ 6 V
10 k
Vsig
o Vout
a) Is this amplifier a common-emitter, common-base, or common-collector configuration?
Determine the collector current and show that the transistor is biased in the active mode.
b) Calculate the amplifier's small-signal gain A, the input resistance Rin, and the output
resistance Rout- Don't include the 10 k resistance of the signal source or the 1 k load
resistor. But do include the effect of the 180 k biasing resistor.
c) Calculate the system gain; G = vout/Vsig-
180 k
1k
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