Homework Answers
Add Answer to:
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...
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),...
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...
DC Coupled Wideband Feedback Amplifier Voltage-Shunt Feedback Amplifier Current-Shunt Feedback Amplifier Voltage-Series Feedback Amplifier Using the...
DC Coupled Wideband Feedback Amplifier Voltage-Shunt Feedback Amplifier Current-Shunt Feedback Amplifier Voltage-Series Feedback Amplifier Using the four amplifiers above, analyze the answers to the questions below. 1) Which amplifier has the largest gain-bandwidth product referring to your table of gain bandwidth products? Answer: 2) On the basis of experimental results, state the effects of negative feedback on gain, and input resistance. Answer: 3) State the difference between current and voltage feedback. Answer:
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...
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...
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...
explain the process Lab Preparation 1. Using DC analysis, and assuming that the transistors (QREF and...
explain the process
Lab Preparation 1. Using DC analysis, and assuming that the transistors (QREF and Q are in the active mode, determine the value of RREF required for generating a copy current of 0.755 mA. Take the value of Vcc to be 8 V, and the value of V in the active mode to be equal to 0.7V Qi REF RREF Vout In Figure 3 Single-stage amplifier biased by a simple current mirror device 2. The circuit shown in...
QUESTION4 Total 24 Marks] For the amplifier circuit shown in Figure 4, assume the input signal...
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...
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...
Lab Preparation . Using DC analysis, and assuming that the transistors (QuEr and Q) are in...
Lab Preparation . Using DC analysis, and assuming that the transistors (QuEr and Q) are in the active mode, determine the value of RREF required for generating a copy current of 0.755 mA. Take the value of Vcc to be 8 V, and the value of VE in the active mode to be equal to 0.7V. Vee H Qur о RaI Figure 3 Single-stage amplifier biased by a simple current miror device 2. The circuit shown in Figure 3, is...
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),...
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...
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...
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...
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...
explain the process
Lab Preparation 1. Using DC analysis, and assuming that the transistors (QREF and Q are in the active mode, determine the value of RREF required for generating a copy current of 0.755 mA. Take the value of Vcc to be 8 V, and the value of V in the active mode to be equal to 0.7V Qi REF RREF Vout In Figure 3 Single-stage amplifier biased by a simple current mirror device 2. The circuit shown in...
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...
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...
Lab Preparation . Using DC analysis, and assuming that the transistors (QuEr and Q) are in the active mode, determine the value of RREF required for generating a copy current of 0.755 mA. Take the value of Vcc to be 8 V, and the value of VE in the active mode to be equal to 0.7V. Vee H Qur о RaI Figure 3 Single-stage amplifier biased by a simple current miror device 2. The circuit shown in Figure 3, is...
Most questions answered within 3 hours.
-
A sock stuck to the side of a clothes-dryer barrel has a
centripetal acceleration of 24...
asked 6 seconds from now -
A perfect gas undergoes an isentropic process such that its
volume doubles. If the ratio of...
asked 19 minutes ago -
list the elements in groups 3A to 6A in the same order as in the
periodic...
asked 28 minutes ago -
Estimating effect size. Peng and Chen (2014)
evaluated effect size estimates for various tests. In their...
asked 38 minutes ago -
Write a script in MySQL that creates and calls a stored
procedure name test. This procedure...
asked 39 minutes ago -
If we test the following: H0: μ = 17
vs. H1: μ ≠ 17 and the...
asked 49 minutes ago -
in the past year TVG had revenues of 3 million, cost
of goods sold of $25...
asked 55 minutes ago -
4) In a polypeptide, which bond cannot rotate because of its
partial double bond character?
The...
asked 1 hour ago -
Assume that in the short run L = 1,000 and K = 100. 1. What is...
asked 1 hour ago -
At a given temperature, 2.06 atm of H2 and 3.7 atm of Br2 are
mixed and...
asked 1 hour ago -
Sodium reacts with Hydrochloric acid to form sodium chloride and
hydrogen gas. 2Na(s)+ 2 HCl(aq)-> 2...
asked 1 hour ago -
The following circuits (1 & 2) are combined to form a
series-parallel circuit and resulting circuit...
asked 1 hour ago