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Question 2) For the circuit that given in figure 2 ; r01 and ro2 without neglected...
2. Obtain A (open loop gain), B (arbitrary rate), and Af (closed loop gain) of the...
2. Obtain A (open loop gain), B (arbitrary rate), and Af (closed loop gain) of the transmission feedback amplifier below. (gm1 = gm2 = 5 MAN, RD = 10KOhm, ro2 = 20KOhm, RF = 1000hm, RL=1KOhm), and Ignore ro1 and consider ro2 only when calculating output resistance. Calculate using each transistor's small signal model... SRO (Q2 that SRL Vs RF
EEET255 Electronics Page 4 of6 QUESTION 3: [25 marks] Figure 3 shows a feedback amplifier circuit...
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...
Question 4: Figure 4 In the series-shunt feedback amplifier shown in Figure 4, the transistors are...
Question 4: Figure 4 In the series-shunt feedback amplifier shown in Figure 4, the transistors are biased with ideal current-sources 1, 0.1mA, 12 1mA, the devices operate with VE0.7V and t = 100. The input signal V, has a zero DC component. Resistances are (a) If the open loop gain is large, what do you expect the closed-loop gain A, -V/V, to be? Give both an expression and its approximate value (b) Find the DC emitter current in each of...
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 P...
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...
15 Vcc RC 5k C2 R1 4.7k Vout 4H C1 Q1 2210 RL in 2k 50...
15 Vcc RC 5k C2 R1 4.7k Vout 4H C1 Q1 2210 RL in 2k 50 71? RE 2.2k CE R2 2.5k SINEO AC 0.02 15? ·model 2210 NPN (Bf=100) Figure 1 A simple common emitter amplifier circuit. Note the ac source has a magnitude of 20 mV. NOTE: Only the 'full' schematics are requested below, not the ac small signal models. You may use the equations derived in lecture (or from the text); there is no requirement to rederive...
Question 1 (10 marks) Figure 10 Rc2 shunt-shunt28R feedback amplifier circuit The resistors values and the transistors parameters are also indicated in Figure 1 1,-0.3mA 285m Hint: in DC analysis...
Question 1 (10 marks) Figure 10 Rc2 shunt-shunt28R feedback amplifier circuit The resistors values and the transistors parameters are also indicated in Figure 1 1,-0.3mA 285m Hint: in DC analysis; 1) For R,-104, determine the small-signal closed-loop current-gain'. 2) Determine the small-signal open-loop current-gain 3) From the results of 2) and 3), determine the loop-gain T: Hint: If you did not solve 2), assume If you did not solve 3), assume600
Question 1 (10 marks) Figure 10 Rc2 shunt-shunt28R feedback...
1.(TCO 2) For the circuit in the following figure (Chapter 3, Figure 3-29, on page 135),...
1.(TCO 2) For the circuit in the following figure (Chapter 3,
Figure 3-29, on page 135), VCC=18
V, R1=10 K?, R2=2.2
K?, RC=1
k?, RE1=220
?,RE2=220 ?, RL=10
K?, Rs=1 K?VCC=18 V,
R1=10 K?, R2=2.2 K?, RC=1 k?, RE1=220
?,RE2=220 ?, RL=10 K?, Rs=1 K? . Determine
the AC voltage gain.
2.(TCO 2) For the circuit in the following figure (Chapter 3,
Figure 3-29, on page 135), VCC=18
V, R1=10 K?, R2=2.2
K?, RC=3
k?, RE1=220
?,RE2=220 ?, RL=5
K?, Rs=1 K?VCC=18 V,
R1=10 K?, R2=2.2 K?, RC=3 k?, RE1=220
?,RE2=220 ?, RL=5 K?, Rs=1 K?...
Question 7/10 R {R2 In the circuit in the figure erf of the battery E=25 V....
Question 7/10 R {R2 In the circuit in the figure erf of the battery E=25 V. All the inductors are of the LI same inductance, L=0.061 H and of negligible resistances. 8 S Resistances of the resistors 6N, R 422, R 892, R3 = 82, R = 152, Rs = 91, Rs =8n. The switch S is closed at the time t = 0. Find the current flowing in Ro immediately after the switch S is closed. are Ro Oston...
In the circuit in the figure R. RS emf of the battery E = 27 V....
In the circuit in the figure R. RS emf of the battery E = 27 V. All the inductors are of the ZR L same inductance, L=0.12 H L3 R1 and of negligible resistances. Is.. Resistances of the resistors are Ro = 31, R: = 41, R2 = 109, Rg = 1522, R = 122, Rs = 102, R=1012. The switch S is closed at the time t = 0 Find the current flowing in Ro immediately after the switch...
Figure 2 shows a feedback amplifier circuit. Rs is the source resistor and R, is the...
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...
2. Obtain A (open loop gain), B (arbitrary rate), and Af (closed loop gain) of the transmission feedback amplifier below. (gm1 = gm2 = 5 MAN, RD = 10KOhm, ro2 = 20KOhm, RF = 1000hm, RL=1KOhm), and Ignore ro1 and consider ro2 only when calculating output resistance. Calculate using each transistor's small signal model... SRO (Q2 that SRL Vs RF
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...
Question 4: Figure 4 In the series-shunt feedback amplifier shown in Figure 4, the transistors are biased with ideal current-sources 1, 0.1mA, 12 1mA, the devices operate with VE0.7V and t = 100. The input signal V, has a zero DC component. Resistances are (a) If the open loop gain is large, what do you expect the closed-loop gain A, -V/V, to be? Give both an expression and its approximate value (b) Find the DC emitter current in each of...
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...
15 Vcc RC 5k C2 R1 4.7k Vout 4H C1 Q1 2210 RL in 2k 50 71? RE 2.2k CE R2 2.5k SINEO AC 0.02 15? ·model 2210 NPN (Bf=100) Figure 1 A simple common emitter amplifier circuit. Note the ac source has a magnitude of 20 mV. NOTE: Only the 'full' schematics are requested below, not the ac small signal models. You may use the equations derived in lecture (or from the text); there is no requirement to rederive...
Question 1 (10 marks) Figure 10 Rc2 shunt-shunt28R feedback amplifier circuit The resistors values and the transistors parameters are also indicated in Figure 1 1,-0.3mA 285m Hint: in DC analysis; 1) For R,-104, determine the small-signal closed-loop current-gain'. 2) Determine the small-signal open-loop current-gain 3) From the results of 2) and 3), determine the loop-gain T: Hint: If you did not solve 2), assume If you did not solve 3), assume600
Question 1 (10 marks) Figure 10 Rc2 shunt-shunt28R feedback...
1.(TCO 2) For the circuit in the following figure (Chapter 3,
Figure 3-29, on page 135), VCC=18
V, R1=10 K?, R2=2.2
K?, RC=1
k?, RE1=220
?,RE2=220 ?, RL=10
K?, Rs=1 K?VCC=18 V,
R1=10 K?, R2=2.2 K?, RC=1 k?, RE1=220
?,RE2=220 ?, RL=10 K?, Rs=1 K? . Determine
the AC voltage gain.
2.(TCO 2) For the circuit in the following figure (Chapter 3,
Figure 3-29, on page 135), VCC=18
V, R1=10 K?, R2=2.2
K?, RC=3
k?, RE1=220
?,RE2=220 ?, RL=5
K?, Rs=1 K?VCC=18 V,
R1=10 K?, R2=2.2 K?, RC=3 k?, RE1=220
?,RE2=220 ?, RL=5 K?, Rs=1 K?...
Question 7/10 R {R2 In the circuit in the figure erf of the battery E=25 V. All the inductors are of the LI same inductance, L=0.061 H and of negligible resistances. 8 S Resistances of the resistors 6N, R 422, R 892, R3 = 82, R = 152, Rs = 91, Rs =8n. The switch S is closed at the time t = 0. Find the current flowing in Ro immediately after the switch S is closed. are Ro Oston...
In the circuit in the figure R. RS emf of the battery E = 27 V. All the inductors are of the ZR L same inductance, L=0.12 H L3 R1 and of negligible resistances. Is.. Resistances of the resistors are Ro = 31, R: = 41, R2 = 109, Rg = 1522, R = 122, Rs = 102, R=1012. The switch S is closed at the time t = 0 Find the current flowing in Ro immediately after the switch...
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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