(25 credits) For circuit shown in the figure below do the following: Rs Ro Rs с,...
6. Find Vi in the following circuit if VR2 3 V, I -2 A, RI 100 , and R2 50 . Ry VR R.y 7. What is the output voltage (Vo) of the summing op-amp below? 1000 kn 200 k2 50 k2 +5 V 100 k2 -5 V V. out 8. For the operational amplifier circuit depicted below: a. Determine Vout in terms of the resistors: Ri, R2, R3, R4 and I R1 qut R- (current source) for the operational...
Figure 2 shows a feedback amplifier circuit. Rs is the source resistor and R, is the load resistor RS Vs VI RL OPAMP R2 R1 RM R3 R4 Step 1: open-loop and closed-loop circuits identification 1.1 Identify the source, the load, and the closed-loop amplifier 1.2 Identify the open-loop amplifier (**A" eireuit) and the feedback network (B" eircuit) in the closed-loop amplifier 1.3 Identify the connection type between the "A" circuit and the "B" circuit at both the input and...
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Problem 2 On the circuit on Figure P2, transi stor Q1 has a threshold voltage of Vt = 2 V and a transconductance parameter of k = 100 mA/V2. Note that Vcc = -Vee = 4.5 V. Moreover, capacitors C1, C2, and C3 can be assumed to be very large VDD 4.5.0 R3 25kQ R1 300kn C2 Vout C1 Rsig Q1 1k0 R2 200kn Vsig (R4 2kQ C3 -4.5V VSS...
Problem 2 Consider the feedback amplifier circuit on Figure P2. The DC current gain of transistor Q3 is -100 1. What type of feedback (or what feedback topology) do we have on the circuit in Figure P2? 2. Draw the A-circuit. Express and compute the open-loop voltage gain A at mid-band frequency 3, Draw the γ-circuit. Express and compute the feedback factor γ 4. Express and compute the overall gain of the feedback amplifier Ap Express and compute the input...
Voc Ri Rc C2 + RS G Q2N3904 RL Vout 2 R2 RE CE Rin Rout Cu B 1x B C o + V be : Cr 8m'be E VCC R R2 Rc RE RS RL С. Cz CE 12 V 8.2 kg 3.9 ko 6.3 k2 3.3 kΩ 3 ko 3.9 ko 10 uF 1uF 100 u Assume the 2N3904 has a 8 =100, Veron} = 0.7V, VA= 100V, C=100, C=13.9pF and Ce=8pF. Use the emission coefficient as n...
QUESTION4 Total 24 Marks] For the amplifier circuit shown in Figure 4, assume the input signal V has zero DC component. Assume both transistors have p-100. (a) State the type of feedback topology used in the amplifier circuit and which type of 12 marks] amplifier is shown in the figure. (b Determine the DC voltages at all nodes of transistors Q1 and Q2. and the DC currents 18 marks] at the emitters of transistors Q1 and Q2 (c) Use the...
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...
Electronics 2, a)
The circuit below (Figure 1) shows a phase-shift Oscillator. 1. Delimit the basic oscillator circuit. 2. What are the extra components used for? Why are they needed? 3. Calculate the frequency of oscillation of this circuit? 4. What is the condition that needs to be satisfied to sustain oscillations? 5. What is the optimal number of RC networks needed for a proper operation of such oscillator? Briefly explain your answer. 50 ΚΩ 100 k12 PI V +...
3-F) b. Vout = 0.99 Vin
3-E) For the following circuit, with Ri 18 k2, R2 15 k(2, R6 = 40 kQ, V,-10 V, and V,-7 V, find: 22 k2, R 30 k2, R4 20 kQ, Rs- a) the current through Ri, R3, & R6 b) the voltage across R2, R4, & Rs Rs V, 3-F) For the following circuit, what is Vout in terms of Vin for each case? a) R1-100 ?, R2-1 k(2, and R3 = 1.0 M(2...
IX With reference to the transistor amplifier shown in Figure QB4 below d For the bipolar transistor circuit of Figure QB4 the following DC bias conditions were measured: VB made. 1.6 V and VBE =0.6 V. Detemine the value for RA, stating any assumptions e) Using these same conditions, calculate the current in Re and deduce the current in Rc, stating any assumptions made. Hence find the voltage across Rc and explain whether this voltage is suitable for this amplifier...