State whether the following statements are TRUE or FALSE 1 A class A amplifier should be biased midway between saturation and cutoff. 2 The drain curves for a D-MOSFET are similar to those of a JFET when the MOS device is operating in the depletion mode. 3 The pinch-off voltage separates the ohmic and active regions for VGS =VGSoff Fill in the blanks 4 The voltage that turns on an E-MOSFET device is the..... ..voltage . 5 The transfer characteristic curve is a graph of versus gate-source voltage. ..... .. A certain class A power amplifier with an input signal power of 100 mW and power gain of 50 Then the power delivered to the load is 6

State whether the following statements are TRUE or FALSE 1 A class A amplifier should be biased midway between saturation and cutoff. 2 The drain curves for a D-MOSFET are similar to those of a JFET when the MOS device is operating in the depletion mode. 3 The pinch-off voltage separates the ohmic and active regions for VGS =VGSoff Fill in the blanks 4 The voltage that turns on an E-MOSFET device is the..... ..voltage . 5 The transfer characteristic curve is a graph of versus gate-source voltage. ..... .. A certain class A power amplifier with an input signal power of 100 mW and power gain of 50 Then the power delivered to the load is 6

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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Since the transistors used in the circuit are b=200 and r0= ∞(endless);A) By analyzing the DC for each amplifier floor separatelyre1, re2 find resistance values.B) Draw the AC equivalent circuit of the amplifier circuit.C) For each floor Zi=?, Z0 =?D) For each amplifier floor Av1, Av2 find the tension gains.E) Avl find Vl voltage value by finding voltage gain.
Using the characteristic curve (please refer to the uploaded characteristic curve) of the NPN transistor of the class A Series - Fed Amplifier, shown in Figure 1 below
(a)(i) State three differences between the Field Effect Transistor (FET) and the Bipolar JunctionTransistor (BJT). (ii) Draw the physical structure and device symbol for an n-channel JFET. (iii) What is meant by drain characteristics (b) Determine the drain current of an n-channel JFET having pinch-off voltage VP = - 4 and drain-source saturation current IDSS=12mA at the following gate-source voltages(i) VGS= 0V(ii) VGS= -2V (c) Calculate the transconductance, gm of a JFET having specified values of IDSS=12mA and VP= - 4V at bias points(i) VGS= 0V and(ii) VGS= -1.5V.
Amplifier circuit is show below has a single ac input and one ac output. Assuming 2N2222 transistor: 1- Determine the Q point, then illustrate it on the transistor I-V characteristic curves. 2- Is the transistor in the active region? Explain thoroughly. 3- Construct the T-model of the transistor with all parameters labelled and evaluated. Assume room temperature. 4- Draw a complete small signal circuit model, then find the voltage gain. Explain two characteristics of this amplifier. 5- Calculate the current gain, the input resistance, and the output resistance.
In the common-emitter amplifier circuit shown in the figure, Vcc=9V, R1=27kΩ, R2=15kΩ, RE=1.2kΩ and RC=2.2kΩ. The transistor has β=100.a-) If Rsig=10kΩ and RL=2kΩ, calculate the IE value of the amplifier.b-) For small signal analysis of the transistor, find the value of Rin by deriving the π-modelc-) Calculate vo/vsig and io/ii.
Consider the common-source amplifier shown in Figure P11.50. The NMOS transistor has KP=50 μA/V2, L=5 μm, W=500 μm, Vto=1 V and rd=∞.a. Determine the values of IDQ, VDSQ and gm. b. Compute the voltage gain, input resistance, and output resistance, assuming that the coupling capacitors are short circuits for the ac signal. Repeat Problem P11.50 for an NMOS transistor having KP=50 μA/V2, W=600 μm, L=20 μm, Vto=2 V and rd=∞. Compare the gain with that attained in Problem P11.50.
Consider a common-emitter BJT amplifier circuit in Figure 3. Assume that Bac = 100 remains constant during the operating conditions, ??′= 10Ω and RL = 500Ω. If RL is connected, evaluate the voltage gain of the amplifier before and after the bypass capacitor C2 is connected. How does the voltage gain change and verify your answer?
1. Use the figure below to solve following questions (a) Solve the following dc quantitiesi. VB(Q1)ii. VE(Q1)iii. IE(Q1)iv. VC(Q1)v. VB(Q2)vi. VE(Q2)vii. IE(Q2)viii. VC(Q2)(b) Suppose that the emitter follower is omitted and the output from thecollector of Q1 is capacitively coupled to the 250Ω load, RL. What isthe output voltage across the 250Ω load?
The figure below shows the small-signal, equivalent-circuit model of a bipolar junction transistor (BJT). With rx = 180 Ω, rπ = 2.9 kΩ, rμ = 14 MΩ, ro = 140 kΩ, and gm = 80 mA/V. Calculate the values of its g-parameters.
The given circuit is a 2N4403 PNP common collector amplifier. Let VCC=12V, VEE=-12V, R1=52.5kΩ, R2=33kΩ, and RE=2.5kΩ. Determine IB, IC, IE, VB, VC, and VE. Start by initially assuming |VBE| =0.7V or and assuming a value of beta (β). Where to look for the value of β? (Hint: It’s in the transistor model assigned). Determine the input voltage (may extend from the supply voltage range) where the BJT goes from “cut-off to active” and where it goes from “active to saturation”. Assume VCE=0.3V (edge of saturation), RL=500Ω, and C1, C2→∞.
Activity 2:The amplifier circuit below has a single ac input and two ac outputs. Assuming transistorparameters of ß = 200 and VBE = 0.7 V:(2-a) Determine the Q point.(2-b) Is the transistor in the active region? Explain thoroughly.(2-c) Construct the T-model of the transistor with all parameters labelled and evaluated.Assume room temperature.(2-d) Draw a complete small-signal circuit model, then find the voltage gain for both outputs.(2-e) Based on the analysis results, what is the function of this circuit? Suggest a properapplication.(2-f) Use Multisim to verify all of your results. Compare and comment.(2-g) Assuming that each output is feeding a 100-kΩ resistor, determine the total voltage gainand current gain for both outputs. Also, calculate the amplifier input resistance and theamplifier output resistances.
Consider the common-base BJT amplifier in Figure 7. Assume that the following valuesremain constant during the operating conditions, B AC= 110 and VBE = 0.5V, Draw the ac equivalent circuit for the BJT amplifier circuit, and calculate the following ac values for the amplifier:i. R outii. R in(emitter) iii. Av iv. Ai v. Ap