Decide whether theses sentences are True or False then correct the False one 1) The dc operating point between active and cutoff regions is called the Q point 2) Non linear region of a transistor is the region of operation within saturation and cutoff 3) The overall voltage gain A of cascaded amplifiers, is the sum of the individual gains 4)in nverting amplifier, sinwave signal is applied at (-) point of the amplifier

Decide whether theses sentences are True or False then correct the False one 1) The dc operating point between active and cutoff regions is called the Q point 2) Non linear region of a transistor is the region of operation within saturation and cutoff 3) The overall voltage gain A of cascaded amplifiers, is the sum of the individual gains 4)in nverting amplifier, sinwave signal is applied at (-) point of the amplifier

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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Amplifier circuit is show below has a single ac input and one ac output. Assuming 2N2222 transistor: Construct the T-model of the transistor with all parameters labelled and evaluated. Assume room temperature. Draw a complete small signal circuit model, then find the voltage gain. Explain two characteristics of this amplifier. Calculate the current gain, the input resistance, and the output resistance.
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.
Activity 2: The amplifier circuit below has a single ac input and two ac outputs. Assuming transistor parameters of B= 130 and VBE=0.7 V: 15 V 15 V W 350 ΚΩ 300 ΚΩ H11 13 ΚΩ 10 ΚΩ
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).
Open with v Consider class-A emitter follower circuit shown in the figure below. The circuit parameters are V+ = 24 V, V- = -24 V, and RL = 2000. The transistor parameters are B = 50, VBElon) = 0.7 V, and VCElsat) = 0.2 V. The output voltage is to vary between +20 V and -20 V. The minimum current in Q1 is to be ie1 = 20 mA. For vo = 0, find the power dissipated in the first transistor Q1- V+
The n-channel JFET and the D-MOSFET have very similar I-V output characteristics. Which of these two structures can be operated in enhancement mode and why is that possible.
1. N-channel enhancement MOSFET control voltage is applied at the controlling the current that is the drain terminal Select one: a. source, entering b. gate, entering C. drain, entering d. source, leaving e. gate, leaving f. drain, leaving 2. In a common source amplifier, the input is fed to the while the output is taken from the Select one: a. source, gate b. source, drain C. gate, source d. gate, drain e. drain, source f. drain, gate 3. In the saturation region of a MOSFET, choose all of the equations that apply (Hint: there are 3) Select one or more: a. VGS >= VTH b. VGS = VGS- VTH g. VDSVGS- VTH ID-k[(2(VGS-VTH)VDS-VDS²]
Hand Calculation: Since you now have the values of R1 and R2 resistors, obtain numeric value of voltage gain Av=Vo/Vi, and numerical values of input and output resistances Ri and Ro. Note that you need to DC analysis first. Do a hand calculation and calculate the DC collector current or IC. This is needed in order to calculate the small signal parameters gm and rπ and in turn to obtain the Av , Ri and Ro Hence, first perform a DC analysis (use the circuit in Figure 1 and take all capacitors open) and assume your transistor has a β=140.
Consider Figure 1 and determine as follows. i. Draw the dc and ac equivalent circuits for the common-source amplifier. ii. Determine Ip, VGs, and VDs for a centred Q-point. Idss=15 mA, and VGS(OFF)= -4 V. iii. Determine the voltage gain, Ay. iv. What happen to the voltage gain, A, if RL is increased to 6.6 kN. VDD +15 V Rp 820 N C3 Vout 1 µF Vin RL 3.3 kN 0.1 μF RG 10 MQ Rs 220 N C2 1 μF
6. This problem involves designing a differential amplifier of the following figure. You may assume that the body and source terminal is shorted and you can neglect channel length modulation. Use the following MOSFET parameters: Parameter N-channel P-channel Units +1.10 -1.20 V 5. 2E-5 A/v 1.5E-5 a) Choose IBIAS for an output DC bias level Vo1(Dc) = Voz(DC)=3.00 V. b) Determine the voltage gain of the differential amplifier. c) Determine the magnitude of the small signal common mode gain. VDD = +5V RD1 5kQ RD2 5kO Voi0 o Vo2 M1 M2 W/L=80/2 w/L=80/2 ) IBIAS Vss = -5V
Given a D-MOSFET circuit used as an amplifier with the following parameter: IDSS=12mA and a transconductance of gm=3.2 mS. Determine the DC drain to source voltage VDS and the AC output voltage if Vin=500 mV.
Fill in the table VB VC VE Ic LE I8 fre IT gm 5V Consider the circuit given at the right. 600k 1.5k =0.7, Vauo, B=165) 100uF Vo 1k 100uF a) Perform DC analysis and calculate all VB =? VC:? branch currents, node voltages, and small signal parameters 3K VE=? Rout b) Draw a small-signal equivalent model n Vin Rin 400K c) Calculate Ri, Rout, and Ay=Vou/Vin -5V