Q1) For the RC coupled amplifier below, where re-6.93 a. Determine the value of voltage gain for each stage and overall voltage gain for cct. b. Determine fs, fc, and fe for each stage. N c. Determine the low cutoff frequency for the overall cct. e. Sketch approximately the low frequency response for the amplifier overall

Q1) For the RC coupled amplifier below, where re-6.93 a. Determine the value of voltage gain for each stage and overall voltage gain for cct. b. Determine fs, fc, and fe for each stage. N c. Determine the low cutoff frequency for the overall cct. e. Sketch approximately the low frequency response for the amplifier overall

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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34
Elecronics Engineering
Figure 2 shows a typical BJT amplifier, with its parasitic capacitances displayed. The current gain of the transistor is B=150 and the voltage gain of the amplifier is Am =-125. The small signal resistances of the transistor are re =16 ohm and r0 = infinity, respectively. The values of resistors and capacitors in the figure are: R1 =80 kohm, R2 =20 Kohm, Rc = 2 Kohm, RE = 2 Kohm, Rs =50 W, RI=5 kohm, Cs=2 uF, Cc=2 uF, Ce =10 uF, Cbc =4 pF, Cbe = 10 pF, Cce =1 pF, Cwi = 4 pF, CWO = 9 pF, and Vcc = 20 V. a) Sketch a simplified circuit diagram of Figure 2 for high frequency analysis. b) Using the concept of "Miller effect capacitance", calculate the input and Output Miller effect capacitances of Figure 2, respectively. C) Determine the upper cut-off frequency of Figure 2 that is imposed by its input network only. d) Explain briefly the possible ways to increase the upper cut-off frequencv of this amplifier.
Draw the circuit symbol for a NPN BJT. Label the terminals and currents. Chose the reference directions that agree with the true current directions for operation in the amplifier region.
A transistor amplifier circuit is biased so that the quiescent point is to the far left of the load line midpoint. What do you expect to occur when the input voltage begins to vary? O The output voltage will be distorted on the bottom because it will hit the lower limit for VCE before the input voltage arrives at its peak. The output voltage will be distorted on the top because it will hit the upper limit for VCE before the input voltage arrives at its peak. O The output voTransistor's output voltage will look like the input voltage amplified and inverted. The output voltage will be zero (flat).
Draw graph between transconductance and input voltage of MOSFET.
answer part b,c, and d
1. To use the Bipolar Junction Transistor (BJT) as a small signal amplifier it must be biased in this region: A. South Park region B. Spatial interface region C. Inverse Thevenin region D. Linear or active region
2. The parameters of the transistor as shown in the figure below are ß = 100 and VA = 100V. a. Find the dc voltages at the base and emitter terminals. b. Find Rc such that VCEQ = 3.5V. c. Assuming Cc and CE act as short circuits, determine the small-signal voltage gain Av = Vo/Vs. d. Repeat part (c) if a 5000 source resistor is in series with the vs signal source. V+ = +5 V Rs = 100 £2 www Us Cc RB = 10 ΚΩ I= Iausmi 0.35 mA www RC -000 V=-5 V CE
Common Gate MOSFET Amplifier has Select one: a. input is connected to the Gate and the output is taken from the Source b. input is connected to the Source and the output is taken from the Drain c. input is connected to the Gate and the output is taken from the Drain d. input is connected to the Source and the output is taken from the Gate 55 week 10 material Jump to... CE255/EE255 (01)- 16
Please answer question a and b
Which of the following models can be used for BJT AC SImall signal amplifier circuit analysis? i. hybrid model ii. re model iii. transconductance model iv. Eber's Moll model II, ili and iv i,i and iv O ii and iv O i and ii