Calculate the DC point of M1 (Vas, Vps)- RSES=1000 Vth,NIV K =100UA/V2 (W/L);=(5um/1um) A=0.001 V1 Vo b) Calculate the small-signal gain VDD R3=10KO R4=1KO R=90KO R VDD (Vo/V), equivalent input resistance at the Vi node, and equivalent output resistance at the V, node. R V, RSES R2 1mA VDD=+10V C, VSS=-10V VSS VSS VSS Vop R R./R2- IMA R. M.IM R- Sooo00r Vss

6) Consider the following multistage amplifier. Draw the corresponding small signal model. Label, Vin, Vo1 and Vo. Do NOT make any approximations. Do NOT perform small signal analysis with this model. Just draw the small signal model. Show your work! Vin Vcc malli Q1 Re1 Vo1 Vcc ww1. Rc2 Q2 Re2 Vo

Q.5/ Refer to the class AB amplifier in figure below operating with a single power supply:a. Find the dc parameters VB(Q1), VB(Q2), VE, ICQ, VCEQ(Q1), VCEQ(Q2).b. Assuming the input voltage is 10Vpp, calculate the power delivered to the load resistor.c. What faults causing the following troubles:1. A positive half-wave output signal2. 0V on both bases and emitters3. No output: emitter voltage =15V4. Crossover distortion on the output.

Q1. (a) Consider the amplifier circuit in Figure Q1(a). Given the following: RI = 100 k2 R2 = 56 kN Rc =2 k2 Vcc = +8 V Assume the transistor has B = 100 and VBE(on) = 0.7 V. You may neglect Early effect and use VT = 26 mV. (i) Draw the DC equivalent circuit, then determine Iç and VCE. Draw the AC equivalent circuit using re model. Based on this, determine the parameters Av, Rin and Rout. (ii) Vcc Rc R1 R2 C3 Vout C2 Ci Vin Figure Q1(a)

Draw a n-p-n transistor connected in circuit common base (CB).Draw the input current-voltage characteristic, the output current-voltage characteristicsand the graph giving dependence of the output current as function of the input current.Define the amplification gain of this circuit.

5, a) Determine Vdsat when ID=.5 mA. b) Determine Kn when ID = 0.5 Amps. (Show your work!) c) Determine VTN. (Show your work!) d) Vgs Consider the circuit and corresponding graph, shown below. ID (mA) 0.60 0.50 0.40 0.30 0.20 0.10 0.00 0 0.5 Vds 1 1.5 2 2.5 Vds 3 3.5 4 4.5 5 -Vgs = 1V - Vgs = 1.1V - Vgs = 1.2V - Vgs = 1.3V

The figure below shows a direct coupled two-stage amplifier. Determine. (i) d.c. voltages for both stages (VB1, VB2, Vc1, Vc2, VE1 and VE2. voltage gain of each stage and overall voltage gain.

A transistor amplifier which uses a npn BJT and various passive components is shown in figure Q1. A table of components values is shown in Table Q1. For this amplifier: a) Calculate the following dc voltages and currents; VB, VE, le and le. b) Draw a r parameter ac small-signal model. The model should be correctly labelled with transistor voltages and all small-signal parameters. Detail assumptions and limitations. c) Calculate the small-signal input resistance Rin, output resistance Rout and output voltage Vout. Detail assumptions and limitations. d) Calculate the small-signal voltage and current gain Av and A. Also calculate the output voltage. Vcc R3 R. R: Figure Q1 R3 = 2 kQ Vin = 10 mV Table of Component values and Transistor Parameters R2 = 10 kQ VT = 24 mV R1 = 40 kQ R4 = 1 kQ VBE = 0.7 V B = 200 %3D Vcc = 10 V C=2mF

Consider the amplifier circuit shown in the figure. The MOSFET parameters are V-0.8V, kn = kn°(W/L) = 2 mA/V² and A=0. (a) Calculate the parameter values at the opeating point, Ip, VGs, and Vps (b) Draw the small-signal equivalent circuit (c) Determine Av=V/Vi (d) Determine the input resistance Rin and the output resistance Rout. +5V RD=7kQ R;=165k2 Vo Cc Answer: (ab In =, Rout Vi Vcs = R2=35k2 R3=0.5k2 Vps = Rin (c) Av = V/VI = (d) Rin = -5V Rout =

C. Draw a n-p-n transistor connected in circuit common emitter (CE). Draw the input current-voltage characteristic, the output current-voltage characteristics and the graph giving dependence of the output current as function of the input current. Define the amplification gain of this circuit.