EEET2255 Electtronics Page 6 of6 QUESTION 5 [25 marks Assume that the transistor in Figure 5...
Q2) Please show all working Thank you :) Question 2 (25 Marks) (a) (6 Marks) Bias the CE amplifier in Figure 2 to have IE = 1mA. Assume B-100, VBE(On) = 0.7 V, Vcc = 15V, VEE= -15V and RB = 100kQ. List all node voltages, currents and resistor values. (b) (10 Marks) Draw the small-signal model for the CE amplifier in Figure 2 Determine the input resistance, output resistance and gain of the amplifier. Assume VA = 100V, RL...
EEET255 Electronics Page 4 of6 QUESTION 3: [25 marks] Figure 3 shows a feedback amplifier circuit R, is the source resistor, R is the feedback resistor and R, is the load resistor. The op-amp has an internal input resistance of R, an intemal output resistance R, and an internal gain of A Apply the "Systematic Analysis" method in this question. Figure 3 3.a State the feedback topology used in the amplifier circuit and which type of feedback amplifier is shown...
The transistor in Figure 4 is biased so that Ic 10mA and VcE 6V. The transistor parameters are: B -150 and VA 120V. Vcc 12V Rc 596 vout Rf 79.5k 01 C2 Rs 1Meg 1uA in Figure 4 BJT feedback amplifier (a) Sketch the feedback circuit and identify the type of feedback. (b) What type of amplifier is this? (c) Calculate the feedback factor (d) Sketch the open loop small signal equivalent circuit. (e) Calculate the open loop gain (f)...
Please make sure you know how to answer this question before you proceed. QUESTION (5) CHt As 64 01u In the following tuned amplifier cireuit, the transistor parameters are given as K- 1 mAV vrh,-IV, cer = 10 pF, Cgd= 1 pF, and λ = 0. +VDD For: Li-1 HH Ci- 200 pF, C2 OUT Rs a) What is the center frequency, Do of this amplifier? what is the gain vowPs at ω-00? What is the 3dB bandwidth of this...
QUESTION 1 (25 MARKS) a. A block diagram of a small private radio station is shown in Figure Q1(a). Operating at a frequency of 550 kHz, the station receives a full AM signal with 260 mW of power. The minimum and maximum bandwidths required by the system are 100 kHz and 200 kHz. If the surrounding temperature of the system is 18 °C, calculate the following: i. Noise Figure, NF for the system. (CO2: PO2 - 2.5 marks) ii. Noise...
3. In Figure 3 on page 5, the DC operating point for the PNP transistor Qi is Ic = 0.33 mA and Vec = 2.4 V, and the DC operating point for the NMOS transistor Mi is ID = 2.81 mA and Vos = 2.92 V. Qı has B = 100, VA = 85 V at room temperature and Mi has Kn= 1 mA/V2, Vin= 1 V and 2 = 0.02 V-1. Assume that the capacitors have infinite values, and...
For the amplifier configuration in Figure 4.1, the transistor parameters are; loss 10 mA, Vp 5 V and 0.01 V. The circuit parameters are; VDo 12 V, Rs 1.2 kn, Ri-265 k, R2 165 k, and RL-0.5 k [Bagi tatarajah penguat dalam Rajah 4.1, parameter transistor adalah; Inss 10 m, V- sV dan à-0.01 Parameter litar adalah; V 12 V, Rs 1.2 k R 265 R-165 k, dan R-0.5 ko VDD Rin R Ro Cc Cc2 RL R2 Rs +...
Laboratory 2: Transistor circuit characteristics A. Objectives: 1. To study the basic characteristics of a transistor circuit. 2. To study the bias circuit of a transistor circuit. B. Apparatus: 1. DC Power supply 2. Experimental boards and corresponding components 3. Electronic calculator (prepared by students) 4. Digital camera (prepared by students for photo taking of the experimental results) 5. Laptop computer with the software PicoScope 6 and Microsoft Word installed. 6. PicoScope PC Oscilloscope and its accessories. 7. Digital multi-meter....
Question 4 (25 Marks) (5) 1. Derive the Dynamic Emitter Resistance, re that is used in the re-model small-signal analysis of BJT. 2. The circuit in Figure 7 shows the multistage cascade of two single transistors with B=100. Given the value of Vpp=12 V, R1=120 kN, R2=40 kN, R3=100 ks, Ra=30 kn, RE1=3.9 kN, Rez=4.5 kN, Rc1=6.5 kN, Rc2=8 ks, (2) (4) (a) Identify the transistor configuration for all stages. (b) Determine the d.c collector current (Ici and I cz)...
QUESTION 2: (20 MARKS) +5 V X2 71 QA X2 ×10 5 V Figure Q2.1 The circuit shown in Figure Q2.1, is a multistage amplifier with a differential input stage It uses a folded cascode involving transistor Q3. Note that transistor Q5 operates in class B mode and is off at the quiescent point, while Q4 is ON at the quiescent point with QD sinking its bias current. All transistors have Vad-0.7V, VA-200 V, and β-100 a) Perform a dc...