Given: Si transistors with hfe = 80 and hie = 2 kN;internal capacitance between base and collector=5 pFinternal capacitance between base and emitter=15 pFstray capacitance at the input and also at the output=12 pFDetermine the lower and upper cutoff frequencies for each of the followingamplifiers:b)20 V4.3 kNC, 5.6 µF51 kn50 ΩR15 k.C3 =15 kNg2.2 kNg1.2 µF10 µFSA

The circuit is as shown below, We need to find the lower and upper cutoff frequencies.

Answered: Given: Si transistors with hfe = 80 and…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Solve for Vout /Vin and hence deduce the small signal gain of the amplifier RL Vo G ips www
Subject: ELECTRONICS 2
A-Design a two-stage BJT amplifier as shown in the figure with coupling capacitors such that the 3 dB low frequencies associated with each stage are equal to 20 Hz. The transistor parameters are: ß = 200 and r = 5.21KQ. Vcc=5V RC = Rez 3.1.5 ΚΩ R₁ = 55 km2 < R₁ = 55 kQ2 R₂ = R₂ = 31 KS2 31 KS2 R2= ΕΓΚΩ Ca www REL= ΠΩ Cc₂
A-Design a two-stage BJT amplifier as shown in the figure with coupling capacitors such that the 3 dB low frequencies associated with each stage are equal to 20 Hz. The transistor parameters are: ß = 200 and 1=5.21KQ. Vcc=5V Rc1= 3.5 kQ2 SR₁ = 3.55 ΚΩ R₁ = 55 k Ri R₂ = 31 kQ2 CCI REL= C1kQ2 HH Cc₂ www Ri R₂ = 31kQ2 RE2= ΣΙΚΩ
Pls answer the following. Thank you
Consider the integrating amplifier circuit in Figure 2. Using nodal analysis, derive an expression for vout for the integrating amplifier. In the circuit in Figure 2, exchange the positions of the 0.1uF capacitor and the 5k resistor. a. Use nodal analysis to generate an expression for vout. b. Using this expression, explain what function this circuit performs on an input signal.
Question 7) Design a JFET amplifier network with ldss-8 mA, Ve=-4 V, R1=110 MN, R2=10 MQ. When an input AC signal V=10 mV is applied to the network, an output signal Vo=2V AC is obtained. (suppose that ra2 10R0) a) Draw the JFET amplifier network you prefer to design, and explain why you choose this network b) Explain the aims and reasons in using of all the peripheral components handled on your network c) Draw AC equivalent re model of the network (5p.) d) Draw transfer characteristic curve and derive lda and Vasa values from the characteristic curve e) Calculate Av, gm, VoD, Ro, Rs, Z; and Zn. Note: Please, do not forget using resistors and capacitors as peripheral elements whatever required for your complete design in the question (i.e. input, output terminals etc.)
Q.3 Figure Q.3 shows an AC equivalent circuit at high frequency for a common-emitter BJT amplifier circuit. The voltage gain, Ay is -40. 1502 4 pF + Em V, RL Vo 3pF 2kΩ 100pF IpF 4pF Figure Q.3: AC equivalent circuit at high frequency operation (а) Determine the high cut-off frequency due to the input side of the equivalent circuit, fHi- (b) Consider that the high cut-off frequency due to the output side of the equivalent circuit, fHo, is 80 MHz. State the dominant high cut-off frequency.
For a common-collector amplifier, RE = 100N, r. = 10N, and 30ac = 150. If a 10 mV signal is applied to the base , the output signal is approximately 10 mV 150 mV 1.5 V 100 mV
Quiq plz
10-when the emitter resistance RE doubles the ac emitter resistance a-Increases. b-decreases. c-Remains the same. d-Cannot be determined. 11-To reduce the distortion in a CE amplifier, reduce the a-DC emitter current. b-Base-emitter voltage. c-Collector current. d-AC base voltage. 12-The output voltage of a CE amplifier is a-Amplified. b-Inverted. c-180° out of phase with the input. d-All of the above.
Q.2/ For the amplifier's circuits shown below: a. Determine the Q-point for each amplifier circuit. b. What is the maximum peak value of collector current that can be realized in each circuit? c. What is the maximum peak value of output voltage in each circuit? +12 V +12 V RC C3 RC C3 R1 6802 R 12 k 100 N Vout 470 2 Vut 10 μ 10 μF V RL 1002 10 μF 10 µF REi 4.7 N REI 22 Ω2 R2 510 n RE2 75 0 C2 10 uF R2 4.7 kN RE2 120 N C2 RL 10 uF 470 N (a) Be = Bpc = 125 (b) Bac = BDc = 120

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