The AC equivalent of a feedback amplifier circuit is given in the figure on the right. (Hfe100, Va = ∞, Ic1 = 15 mA, Ic2 = 5mA and Ic3 = 5 mA) a) State the type of feedback used in the circuit, explaining the reason. b) Draw the small signal equivalent of the amplifier circuit. c) Calculate the value of β for the feedback by drawing the β circuit.
The AC equivalent of a feedback amplifier circuit is given in the figure on the right. (Hfe100, Va = ∞, Ic1 = 15 mA, Ic2 = 5mA and Ic3 = 5 mA) a) State the type of feedback used in the circuit, explaining the reason. b) Draw the small signal equivalent of the amplifier circuit. c) Calculate the value of β for the feedback by drawing the β circuit.
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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2-) The AC equivalent of a feedback amplifier circuit is given in the figure on the right. (Hfe100, Va = ∞, Ic1 = 15 mA, Ic2 = 5mA and Ic3 = 5 mA)
a) State the type of feedback used in the circuit, explaining the reason.
b) Draw the small signal equivalent of the amplifier circuit.
c) Calculate the value of β for the feedback by drawing the β circuit.
d) Find the Avf = Vo / Vs closed loop gain of this circuit.
e) Find the Rif and Rof values.
Transcribed Image Text:2) Yandaki şekilde geribeslemeli bir kuvvetlendirici
devrenin ac eşdeğeri verilmektedir.
(heE=100, VA=00, Ic=15 mA, I-5 mA ve le=5 mA)
a) Devrede kullanılan geribeslemenin tipini nedenini
açıklayarak belirtiniz.
b) Kuvvetlendirici devrenin küçük işaret eşdeğerini çiziniz.
c) B devresini çizerek geribeslemeye ait B degerini
hesaplayınız.
d) Bu devreye ait Apr
bulunuz.
c) Ry ve Rof değerlerini bulunuz.
Ha
800 n
Rea
4000
Ru
to
Ret
vo
kapalı çevrim kazancını
Ry
R=1.2 K
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