4.20 The transistor in the common-source amplifier in Figure P4.20 has parame-ters VTN = 0.8 V, k, = 100 µA/V², w/L = 50, and A = 0.02 V-1. Thecircuit parameters are V+ = 5 V, V-= -5 V, lo =0.5 mA, andRp = 6 k2. (a) Determine VgsQ and VpsQ. (b) Find the small-signal volt-age gain for R1 =∞. (c) Repeat part (b) for R1 = 20KS2. (d) Repeat part(b) for RL = 6 kS.+5 VRpRDCcCc2R =40 k2RLRGRg=200 k2Cs-5 VV-Figure P4.21Figure P4.20wwwwo

Answered: Image /qna-images/answer/cd65fee4-84c8-4069-acc7-5a63db91fa7f.jpg

1.20 The transistor in the common-source amplifier in Figure P4.20 has parame- ters VTN =0.8 V, k, = 100 µA/V², w/L = 50, and A= 0.02 V-1. The circuit parameters are V+ = 5 V, V-=-5 V, lo =0.5 mA, and Rp = 6 k2. (a) Determine VgsQ and VDSQ. (b) Find the small-signal volt- age gain for R1 = ∞. (c) Repeat part (b) for R1 = 20KS2. (d) Repeat part (b) for RL = 6 k2. +5 V Rp Rp Cc R = 40 k2 RL RG RG= 200 kΩ Cs -5 V Figure P4.21 Figure P4.20 w

1.20 The transistor in the common-source amplifier in Figure P4.20 has parame- ters VTN =0.8 V, k, = 100 µA/V², w/L = 50, and A= 0.02 V-1. The circuit parameters are V+ = 5 V, V-=-5 V, lo =0.5 mA, and Rp = 6 k2. (a) Determine VgsQ and VDSQ. (b) Find the small-signal volt- age gain for R1 = ∞. (c) Repeat part (b) for R1 = 20KS2. (d) Repeat part (b) for RL = 6 k2. +5 V Rp Rp Cc R = 40 k2 RL RG RG= 200 kΩ Cs -5 V Figure P4.21 Figure P4.20 w

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...

See similar textbooks

Similar questions

RI R3 Ve Figure Q4.b c) The amplifier in Figure Q4.b has an offset voltage Vos = ±3 mV, input bias current Ig = 13 µA and input offset current los = 6 µA. Calculate the maximum absolute output voltage that could occur due to the bias currents and offset voltage alone (i.e. with the signal source remaining in the circuit but turned down to zero volts), given that R1 = 1 kN, R2 = 100 kN and R3 =
QUESTION 4 In this voltage divider bias circuit, the input is at the base. Output is at the emitter with a high input resistance and low output resistance. The maximum voltage gain is 1 and the coupling capacitors must have a negligible reactance at the frequency of operation. (use to answer a and b) a. Derive the expression for the voltage gain, current gain, and power gain in terms of power delivered to the load, RL. b. Sketch both the DC and AC equivalent circuits. c. Derive the expression for ripple factor of Half Wave Rectification with a capacitor filter.
Q4: Design a buck-boost converter to provide an output voltage 12V from a source that varies 'between 10V-16V. Given the load resistor is 10 2, assuming the frequency is 50 KHz and the output voltage ripple is 1.5% Specify: a. The duty ratio. b. The value of inductor. c. The value of capacitor. Note: Determine the values of inductor and capacitor with DI only.
1. For the following circuit assume re = 30.6 1 a. Draw the small signal equivalent circuit. b. Find the input impedance. c. Find output impedance. d. Find the voltage gain. e. Find the current gain. 4.72 10F
Q4: A: Given the common-base configuration in the following figure, sketch the ac equivalent circuit in: Rs C1 C2 1- re- model. 2- Hybrid model. RE Re Vs Vo VEE Vcc
Q4. a) In an ac transistor amplifier, the circuit includes capacitors as well as resistors. What is the circuit role provided by these capacitors?
Consider the circuit in Figure A4. (a) Explain its operation with the aid of diagrams. (b) Assume that R₁ = 21 kQ, Vref = 1.2 V, Vs = +12 V and -Vs = -12 V. Determine a value for R₂ to obtain a maximum threshold voltage of Vth = 5.25 V. (c) Sketch the output voltage signal in time for a sinusoidal input signal of peak voltage 3.5 V and frequency 2 kHz. R1 R2 Vout Vref Vin +Vs -Vs Figure A4
Av=50 of the voltage gain according to the circuit in Figure what should be the value of resistance R4 to be. . [?3 = 0.5 ??]
4.15 For the NMOS common-source amplifier in Figure P4.15, the transistor parameters are: VIN = 0.8 V, K, =I mA/V², and à = 0. The circuit para- meters are VpD = 5 V, Rs = 1 k2, Rp = 4 k2, R = 225 k2. and R2 = 175 k2. (a) Calculate the quiescent values Ipo and Vpso. (b) Deter- mine the small-signal voltage gain for Ri = 00. (c) Determine the value of RL that will reduce the small-signal voltage gain to 75 percent of the value found in part (b). VpD Figure P4.15 ww ww
2- The condition for modulator to work as 4Q balanced is : a. V, or Vz VT. d. Vi or V2> VT.
b) Consider the amplifier circuit shown in Figure Q4.b with a non-ideal operational amplifier and an ideal input voltage source, show that the DC output voltage with the signal voltage turned down to zero will be: R1 + R2Y V, = ( 2)[+Vos + lapR3] – lenR2 R, R2 RI R3 Vo Figure Q4.b
A cascode circuit is shown in Figure 4 below: v+ Rp R1 CG M2 R2 Cc M1 R3 Rs Cs V- Figure 4 The transistor parameters are Kn1 = Kn2 = 0.8 mA/V² and VTNI = VTN2= 1.2 V. The cascode circuit operates at Ip = 0.4 mA in each transistor. (a) Draw the AC equivalent circuit for the cascode circuit shown in Figure 4 above. (b) Draw the small-signal equivalent circuit for the cascode circuit shown in Figure 4 above. (c) Design the cascode circuit with a voltage gain (Av) of -5.0. wwo s