Design a series-series feedback BJT amplifier given that the voltage with feedback is -6.3 and I. 20 µA and V = 15 mV and RB 470 N and C = 1 µF. %3D %3D %3D What is the feedback factor and the gain without feedback?
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- Find the loop gain, ideal transresistance, actual transresistance, input resistance, and output resistance for the feedback amplifier shown with RI =100kΩ, RL =15kΩ, and RF =10kΩ.If a signal voltage of 30mV is applied to inverting amplifier, find output voltage and phase relationship with input voltage if it has input resistance of 25 ohm and feedback resistance of 50 ohm. NOTE : KINDLY ELABORATE BRIEFLYA voltage follower’s closed-loop voltage gain Av is described by Eq. as shown. (a) What is the minimum value of loop gain T required if the gain error is to be less than 0.02 percent for a voltage follower?(b) What value of open-loop gain A is required in the amplifier?
- The feedback amplifier shown has R1 = 1kΩ, R2 = 100 kΩ, RI = 0, and RL = 10 kΩ. (a) What is β? (b) If A =92 dB, what are the loop gain T and the closed loop gain Av? (c) What are the values of GE and FGE?The circuit as shown is a shunt-shunt feedback amplifier. Use feedback analysis to find the midband input resistance, output resistance, and transresistance of the amplifier if RI = 500 Ω, RE = 2 kΩ, β0 = 100, VA = 50 V, RL = 5.6 kΩ, and RF = 47 kΩ, when vi and RI are replaced by a Norton equivalent circuit. What is the voltage gain for the circuit as drawn?Assume for a moment that perfectly accurate resistors were available for feedback networks; that is resistor tolerance is 0%. Then any deviation from the value set by the feedback resistor ratio is caused by insufficient raw op-amp gain. What minimum raw gain would be needed to get within 1% if an intended overall gain of 10? What if the intended gain is 100 instead?
- Slove Foperational amplifiers of your choice both FET and BJT based technologyA) From the datasheet, find the number of pins of the Op-amp IC, the open-loop gain,bandwidth, CMRR, slew rate, Voltage offset, current offset, input and output impedance,recommended supply voltages. Tabulate your outcomes with evidence from the data sheets.For both types of Op-Amps. Discus advantages and disadvantages of both.B) Mention available amplifiers that this op-amp is used for and discuss in brief itsapplications.C) Build a simple differentiator circuit, having C=1µF and R = 1kΩ for the op-amp chosen in(A), virtual using Multisim. Evaluate the voltage saturation, compare your findings with bothtypes of op-amps (FET and BJT) and analyze briefly how you concluded your result.D) Build a simple non-inverting amplifier with a gain of 10V/V circuit, using the op-ampchosen in (A) either BJT or FET, virtual using Multisim. Evaluate the slew rate, and theamplifier specification in terms of conduction angle…A amplifier’s closed-loop voltage gain Av is described by Eq. as shown. What is the minimum value of loop gain T required if the gain error is to be less than 0.2 percent for an ideal gain of 50 dB?Find the loop gain, ideal current gain, actual current gain, input resistance, and output resistance for the feedback amplifier shown with RI = 150 kΩ, RL = 5k Ω, R1 = 10 kΩ and R 2 =1kΩ.
- (a) Calculate the poles at the base of Q2, the base of Q5, the collector of Q5, and the emitter of Q6 for the amplifier of (a) with CC = 0. Use fT = 300 MHz and Cμ = 1 pF in addition to the bias parameters (b) Calculate the gain of the amplifier with VA = 50 V and βo = 100. (c) Assuming a unity-gain feedback connection, calculate the phase margin of the amplifier. (d) What value of CC is necessary to set the phase margin at 75◦?Design an operational-amplifier circuit (using two inverting configurations) with compensating resistor (??) for each amplifier, to produce the output of: ??= −5?1+2?2−0.1?3+5?4. Choose a suitable feedback resistor ?? for each amplifier.Given in the figure is a two-stage amplifier design that employs negative feedback. Answer the following questions. Use the notation (R1 + R2 + ... + Rn) for series resistors and (R1 || R2 || ... || Rn) for parallel resistors for clarity and ease. Assume that the transistors are already biased properly in the saturation region and ro1 = ro2 → ∞. Also assume that the capacitors have infinite capacitance. 1.) Find the expression for the open loop gain Av 2.) Derive the resistance Rin which is the resistance that can be seen at the input port of the amplifier