Problem 5 In the BJT circuit below, R=1002 and R=10002 which gives a voltage gain of about 10. The transistor has B=50. The source voltage is V cc=15.0V Rc Rs IB Vcc VCE VBB RE The base is biased with a voltage source V Bg to give base voltage: V=1.5 V. Assume that the base-emitter junction is forward biased, V Bg=0.7 V a) What is the emitter voltage V? b) What is the emitter current I? c) What is a good estimate of the collector current, Ic and collector voltage, V? d) What is Va? e) Is the transistor in cut-off, active or saturation mode?

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Problem 5
In the BJT circuit below, R=1002 and R=10002 which gives a voltage gain of
about 10.
The transistor has B=50.
The source voltage is V cc=15.0V
Rc
Rs IB
Vcc
VCE
VBB
RE
The base is biased with a voltage source V Bg to give base voltage: V=1.5V.
Assume that the base-emitter junction is forward biased, V B=0.7 V
a) What is the emitter voltage V?
b) What is the emitter current I?
c) What is a good estimate of the collector current, Ic and collector voltage, V.?
d) What is Va?
e) Is the transistor in cut-off, active or saturation mode?
f) What is an estimate of the base current?
Transcribed Image Text:Problem 5 In the BJT circuit below, R=1002 and R=10002 which gives a voltage gain of about 10. The transistor has B=50. The source voltage is V cc=15.0V Rc Rs IB Vcc VCE VBB RE The base is biased with a voltage source V Bg to give base voltage: V=1.5V. Assume that the base-emitter junction is forward biased, V B=0.7 V a) What is the emitter voltage V? b) What is the emitter current I? c) What is a good estimate of the collector current, Ic and collector voltage, V.? d) What is Va? e) Is the transistor in cut-off, active or saturation mode? f) What is an estimate of the base current?
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