(a) What is the FeedBack Topology for this feedback amplifier and identify the sampled signal at the output and Feedback Signal at the input?
(b) Identify the feedback network by drawing schematic to present it as a 2-port network.
(c) Construct the equivalent circuit and calculate the 2-port network parameters to be used for the feedback analysis.
Please show all your working for me.. please please
Homework Answers
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(a) What is the FeedBack Topology for this feedback amplifier and identify the sampled signal at ...
+12V 0. RI 34 kn a) Determine the feedback topology of the feedback amplifier shown above...
+12V 0. RI 34 kn a) Determine the feedback topology of the feedback amplifier shown above if the o t is taken from the collector node of Qs You must justifylexplain your answer below for full credit. [3 pts.) b) Determine the feedback topology of the feedback amplifier shown above if the output is taken from the emitter node of You must justify/explain your answer below for full credit. [3 pts.] CT For the circuit described in part (b), draw...
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...
Please solve all parts pf the questions. Please show clear and neat work. Thank you! FEEDBACK AMPLIFIER ANALYSIS β,s/ Sa) Identify the feedback topology being used. Draw the B-network and You must j...
Please solve all parts pf the questions. Please show clear and
neat work. Thank you!
FEEDBACK AMPLIFIER ANALYSIS β,s/ Sa) Identify the feedback topology being used. Draw the B-network and You must justify or explain find the numerical value for B- your answer for full credit (20 pts) 2 Assume matching transistors with DC bias voltage (or an ac ground) Sb) Draw and fully label the A-circuit (includes loading effects, R & R but NO feedback) p) Sc) Calculate the...
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...
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...
QUESTION5 The small-signal ac equivalent cireuit of a transistor amplifier with collector feedback is shown in...
QUESTION5 The small-signal ac equivalent cireuit of a transistor amplifier with collector feedback is shown in the figure below. Assume the following circuit values: B- 200, re" i i o. RF-180 kn. Rc" 2.7 ?, RO-3.3 ?, ??-?2 = 10 ?? If the input voltage Vi-5 co (90 t) mv. determine the magnitude of the steady-state ac output voltage Vo (in mV), across the output load resistor Ro. Hint: Use node analysis to find the output node voltage, and note...
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...
1. Consider the CMOS source follower (or common drain) amplifier shown below. The NMOS transistor...
1. Consider the CMOS source follower (or common drain) amplifier shown below. The NMOS transistor operates in the saturation region. C, C2 are coupling capacitors. 「en C2 Rs 2ok The small-signal model for NMOS transistor is given below gnUgs The parameters are given below: (1) Please derive the complete small-signal circuit for the amplifier (10pts). (2) Apply Miller Effect to the small-signal circuit from step (1) to estimate the 3dB bandwidth of the amplifier. (Note: applying Miller Effect introduces a...
6. Negative feedback calculation Assumption: You may assume that A is 0 (a) (1 point) Identify...
6. Negative feedback calculation Assumption: You may assume that A is 0 (a) (1 point) Identify the feedback circuit by drawing a box around it. (b) (1 point) Identify the feedforward amplifier. (c) (1 point) What variable is being sensed at the input of the feedback circuit? (d) (1 point) What variable is being returned at the output of the feedback circuit? (e) (2 points) Compute Rimopens the input resistance of the feedfoward amplifier. (2 points) Compute Rout open, the...
Find the induction process of A, β, Ro, Ri. EXAMPLE 10.10 Figure 10.27 shows a feedback current amplifier formed by cas...
Find the induction process of A, β, Ro, Ri.
EXAMPLE 10.10 Figure 10.27 shows a feedback current amplifier formed by cascading an inverting voltage amplifier u witha MOSFET Q. The output current I, is the drain current of Q. The feedback network, consisting of resistors R, and R, senses an exactly equal current, namely, the source current of Q, and provides feedback current signal that is mixed with I, at the input node. Note that the bias arrangement is not...
+12V 0. RI 34 kn a) Determine the feedback topology of the feedback amplifier shown above if the o t is taken from the collector node of Qs You must justifylexplain your answer below for full credit. [3 pts.) b) Determine the feedback topology of the feedback amplifier shown above if the output is taken from the emitter node of You must justify/explain your answer below for full credit. [3 pts.] CT For the circuit described in part (b), draw...
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...
Please solve all parts pf the questions. Please show clear and
neat work. Thank you!
FEEDBACK AMPLIFIER ANALYSIS β,s/ Sa) Identify the feedback topology being used. Draw the B-network and You must justify or explain find the numerical value for B- your answer for full credit (20 pts) 2 Assume matching transistors with DC bias voltage (or an ac ground) Sb) Draw and fully label the A-circuit (includes loading effects, R & R but NO feedback) p) Sc) Calculate the...
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...
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...
QUESTION5 The small-signal ac equivalent cireuit of a transistor amplifier with collector feedback is shown in the figure below. Assume the following circuit values: B- 200, re" i i o. RF-180 kn. Rc" 2.7 ?, RO-3.3 ?, ??-?2 = 10 ?? If the input voltage Vi-5 co (90 t) mv. determine the magnitude of the steady-state ac output voltage Vo (in mV), across the output load resistor Ro. Hint: Use node analysis to find the output node voltage, and note...
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...
1. Consider the CMOS source follower (or common drain) amplifier shown below. The NMOS transistor operates in the saturation region. C, C2 are coupling capacitors. 「en C2 Rs 2ok The small-signal model for NMOS transistor is given below gnUgs The parameters are given below: (1) Please derive the complete small-signal circuit for the amplifier (10pts). (2) Apply Miller Effect to the small-signal circuit from step (1) to estimate the 3dB bandwidth of the amplifier. (Note: applying Miller Effect introduces a...
6. Negative feedback calculation Assumption: You may assume that A is 0 (a) (1 point) Identify the feedback circuit by drawing a box around it. (b) (1 point) Identify the feedforward amplifier. (c) (1 point) What variable is being sensed at the input of the feedback circuit? (d) (1 point) What variable is being returned at the output of the feedback circuit? (e) (2 points) Compute Rimopens the input resistance of the feedfoward amplifier. (2 points) Compute Rout open, the...
Find the induction process of A, β, Ro, Ri.
EXAMPLE 10.10 Figure 10.27 shows a feedback current amplifier formed by cascading an inverting voltage amplifier u witha MOSFET Q. The output current I, is the drain current of Q. The feedback network, consisting of resistors R, and R, senses an exactly equal current, namely, the source current of Q, and provides feedback current signal that is mixed with I, at the input node. Note that the bias arrangement is not...
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