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Oue sion op in of an amplifier is given by The open...
Solve Question 2 The open loop gain of an amplifier is given by 105 Av = 10 105 If the closed loop gain is 100: 1. Show that this amplifier will be stable 2. Calculate the phase margin Questi...
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Question 2 The open loop gain of an amplifier is given by 105 Av = 10 105 If the closed loop gain is 100: 1. Show that this amplifier will be stable 2. Calculate the phase margin
Question 2 The open loop gain of an amplifier is given by 105 Av = 10 105 If the closed loop gain is 100: 1. Show that this amplifier will be stable 2. Calculate the phase margin
A non-inverting amplifier using OP-amp is given in Figure Q4c. (8) Vout Vin 99 kN RL...
A non-inverting amplifier using OP-amp is given in Figure Q4c. (8) Vout Vin 99 kN RL 1 kQ AoL = 10s Figure Q4c Amplifier has the following properties. Open loop gain is 105 Open loop output impedance is 40 N Open loop bandwidth is 10 Hz Then, calculate The closed loop voltage gain. The closed loop output impedance. The closed loop bandwidth. i) ii) iii)
Sketch the Bode plots for a stable three-pole amplifier with dc gain 10^5 whose poles have magnit...
Sketch the Bode plots for a stable three-pole amplifier with dc
gain 10^5 whose poles have magnitudes 0.1 MHz, 1 MHz and 10 MHz.
Find the gain margin and phase margin of the amplifier if it is
connected in a feedback loop with (a) unity feedback factor; (b)
feedback factor 5.623 x 10^-5; (c) closed-loop dc gain 50 dB. In
each case indicate whether the closed-loop amplifier is stable or
unstable. What is the minimum stable closed-loop dc gain of...
Question 2 (10 marks) Consider the following three-pole feedback amplifier with a loop gain function: 5432xB Tlir)- 2x101+ 4 x 105 If -38.66x10" determine the phase margin and the gain margin...
Question 2 (10 marks) Consider the following three-pole feedback amplifier with a loop gain function: 5432xB Tlir)- 2x101+ 4 x 105 If -38.66x10" determine the phase margin and the gain margin of this system (if it is stable).
Question 2 (10 marks) Consider the following three-pole feedback amplifier with a loop gain function: 5432xB Tlir)- 2x101+ 4 x 105 If -38.66x10" determine the phase margin and the gain margin of this system (if it is stable).
Fowop and elosed loop trequency responses of the anip Figure O3 given that the Op-Amp has...
Fowop and elosed loop trequency responses of the anip Figure O3 given that the Op-Amp has a gain bandwid y eirent shown in preoctorIAHr and an open-oop gain corner trequenoy of 10 Ha. Wh is the approximate phase margin ofthis amplifier marg 199 k 1 kn Figure 93 itier has an open-loop gain given by Zo4
Question 2 (10 marks) Consider the following three-pole feedback amplifier feedack amplifier with a loop gain func with a loop gain function 5432 T(ir)- 3x10 4x10 If -38.66x10 determine the phase...
Question 2 (10 marks) Consider the following three-pole feedback amplifier feedack amplifier with a loop gain func with a loop gain function 5432 T(ir)- 3x10 4x10 If -38.66x10 determine the phase margin and the gairn margin of this system (if it is stable)
Question 2 (10 marks) Consider the following three-pole feedback amplifier feedack amplifier with a loop gain func with a loop gain function 5432 T(ir)- 3x10 4x10 If -38.66x10 determine the phase margin and the gairn margin of...
A unity gain negative feedback system has an open-loop transfer function given by 4. s) =...
A unity gain negative feedback system has an open-loop transfer function given by 4. s) = s(1 + 10s)(1 + 10s)? Draw a Bode diagram for this system and determine the loop gain K required for a phase margin of 20 deg. What is the gain margin? 5. We are given the closed-loop transfer function 10(s + 1) T(s) = 82+98+10 for a "unity feedback" system and asked to find the open-loop transfer function, generate a log-magnitude-phase plot for both...
An op-amp is to be selected for an inverting amplifier to be used at dc and...
An op-amp is to be selected for an inverting amplifier to be
used at dc and very low frequencies. A closed-loop nominal gain 0f
-100 is desired. Specifications indicate the minimum value of dc
open-loop gain cannot exceed 0.1dB. Assume in the design of problem
with the following additional specifications given:
dc output due to input offset voltage
100mV
dc output due to input offset voltage
5mV
Determine the maximum value of input offset voltage allowed for
the op-amp. If...
Question1 Figure 1 represents a shunt-shunt feedback amplifier circuit. The resistors' values and the transistors parameters are also indicated in Figure 1 Voo 8100 Rci 28 KS2 Rci D10 | R.-S...
Question1 Figure 1 represents a shunt-shunt feedback amplifier circuit. The resistors' values and the transistors parameters are also indicated in Figure 1 Voo 8100 Rci 28 KS2 Rci D10 | R.-S㏀ Hint: in DC analysis; gl -11.538mA/V and 0 R0.2k2 822.85mA/V IE 0.3mA Figure- 1) For R, -10 k2, determine the small-signal closed-loop current-gain A, 2) Determine the small-signal open-loop current-gain.4,- 3) From the results of 2) and 3), determine the loop-gain T Kint: If you did not solve a),...
JU Oct 2017 5 Minute Test Your Understanding Quiz A compensated Op-Amp has an open-loop gain...
JU Oct 2017 5 Minute Test Your Understanding Quiz A compensated Op-Amp has an open-loop gain of 10' and a dominant pole of 8 Hz. The Op-Amp is used in a closed-loop single stage amplifier which has a low-frequency gain of 50. What is the -3 dB bandwidth of the closed-loop amplifier? Note: I know of at least two ways to solve this problem
Solve
Question 2 The open loop gain of an amplifier is given by 105 Av = 10 105 If the closed loop gain is 100: 1. Show that this amplifier will be stable 2. Calculate the phase margin
Question 2 The open loop gain of an amplifier is given by 105 Av = 10 105 If the closed loop gain is 100: 1. Show that this amplifier will be stable 2. Calculate the phase margin
A non-inverting amplifier using OP-amp is given in Figure Q4c. (8) Vout Vin 99 kN RL 1 kQ AoL = 10s Figure Q4c Amplifier has the following properties. Open loop gain is 105 Open loop output impedance is 40 N Open loop bandwidth is 10 Hz Then, calculate The closed loop voltage gain. The closed loop output impedance. The closed loop bandwidth. i) ii) iii)
Sketch the Bode plots for a stable three-pole amplifier with dc
gain 10^5 whose poles have magnitudes 0.1 MHz, 1 MHz and 10 MHz.
Find the gain margin and phase margin of the amplifier if it is
connected in a feedback loop with (a) unity feedback factor; (b)
feedback factor 5.623 x 10^-5; (c) closed-loop dc gain 50 dB. In
each case indicate whether the closed-loop amplifier is stable or
unstable. What is the minimum stable closed-loop dc gain of...
Question 2 (10 marks) Consider the following three-pole feedback amplifier with a loop gain function: 5432xB Tlir)- 2x101+ 4 x 105 If -38.66x10" determine the phase margin and the gain margin of this system (if it is stable).
Question 2 (10 marks) Consider the following three-pole feedback amplifier with a loop gain function: 5432xB Tlir)- 2x101+ 4 x 105 If -38.66x10" determine the phase margin and the gain margin of this system (if it is stable).
Fowop and elosed loop trequency responses of the anip Figure O3 given that the Op-Amp has a gain bandwid y eirent shown in preoctorIAHr and an open-oop gain corner trequenoy of 10 Ha. Wh is the approximate phase margin ofthis amplifier marg 199 k 1 kn Figure 93 itier has an open-loop gain given by Zo4
Question 2 (10 marks) Consider the following three-pole feedback amplifier feedack amplifier with a loop gain func with a loop gain function 5432 T(ir)- 3x10 4x10 If -38.66x10 determine the phase margin and the gairn margin of this system (if it is stable)
Question 2 (10 marks) Consider the following three-pole feedback amplifier feedack amplifier with a loop gain func with a loop gain function 5432 T(ir)- 3x10 4x10 If -38.66x10 determine the phase margin and the gairn margin of...
A unity gain negative feedback system has an open-loop transfer function given by 4. s) = s(1 + 10s)(1 + 10s)? Draw a Bode diagram for this system and determine the loop gain K required for a phase margin of 20 deg. What is the gain margin? 5. We are given the closed-loop transfer function 10(s + 1) T(s) = 82+98+10 for a "unity feedback" system and asked to find the open-loop transfer function, generate a log-magnitude-phase plot for both...
An op-amp is to be selected for an inverting amplifier to be
used at dc and very low frequencies. A closed-loop nominal gain 0f
-100 is desired. Specifications indicate the minimum value of dc
open-loop gain cannot exceed 0.1dB. Assume in the design of problem
with the following additional specifications given:
dc output due to input offset voltage
100mV
dc output due to input offset voltage
5mV
Determine the maximum value of input offset voltage allowed for
the op-amp. If...
Question1 Figure 1 represents a shunt-shunt feedback amplifier circuit. The resistors' values and the transistors parameters are also indicated in Figure 1 Voo 8100 Rci 28 KS2 Rci D10 | R.-S㏀ Hint: in DC analysis; gl -11.538mA/V and 0 R0.2k2 822.85mA/V IE 0.3mA Figure- 1) For R, -10 k2, determine the small-signal closed-loop current-gain A, 2) Determine the small-signal open-loop current-gain.4,- 3) From the results of 2) and 3), determine the loop-gain T Kint: If you did not solve a),...
JU Oct 2017 5 Minute Test Your Understanding Quiz A compensated Op-Amp has an open-loop gain of 10' and a dominant pole of 8 Hz. The Op-Amp is used in a closed-loop single stage amplifier which has a low-frequency gain of 50. What is the -3 dB bandwidth of the closed-loop amplifier? Note: I know of at least two ways to solve this problem
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