H.W.1- For the circuit shown, calculate Ave, Rif, and Rof & what is the feedback topology. ۷۶۵ Rs M Ik Vcc 4K = R₂ 1 ко Vo hfe=150 hie = 1KR Hinit.. Rp is the pop unby passed. Re
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- 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?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.Find the loop gain, ideal transconductance, actual transconductance, input resistance, and output resistance for the feedback amplifier as shown with RI =15 kΩ, RL =10 kΩ, and R1 =3kΩ.
- 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.Given r_e = 10 Ω, β = 200, A_v = -160, and A_i = 19 for the collector-feedback network shown below, determine a) R_C; b) R_F; and, c) V_CC .Find the desired values below in the feedback amplifier circuit in the figure. a) Find the no-load voltage gain in the amplifier circuit when the Rf resistor is open circuit. b) Voltage and current in amplifier circuit when Rf resistor is open circuit and RL resistor is present Find your earnings. c) When the Rf feedback resistor is connected, the Rf value that makes the feedback current gain Ai/3 find it. Indicate the assumptions you take in your transactions.
- A unity-feedback system has forward transfer function (see attached). a) Sketch the root locus for this system as K varies from 0 to ∞; b) Use the Routh-Hurwitz test to determine the range of K for the system to be stable; show this value of K on the root locus plot.The classic feedback amplifier as shown has β =0.125. What are the loop gain T, ideal closedloop gain AIdeal v , actual closed-loop gain Av, and the fractional gain error FGE if (a) A =∞? (b) A =84 dB? (c) A =20?The voltage gain of an amplifier is described by A(s) = 2π ×1010s /(s+2000π)(s+2π ×106) (a) What are the mid-band gain and upper- and lower-cutoff frequencies of this amplifier? (b) If this amplifier is used in a feedback amplifier with a closed-loop gain of 100, what are the upper-and lower-cutoff frequencies of the closed-loop amplifier? (c) Repeat for a closed-loop gain of 40.
- 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 transistor parameters for the circuit shown are VTN = 0.4 V, Kn =0.5 mA/V2, and λ = 0.(a) Discuss the feedback topology, show the input ant output connections (series orshunt)(b) Find the feedback factor β (find the transfer function without feedback first)For the feedback amplifier circuit shown below, assuming the internal resistor in each MOSFETs is infinite ( ro = ∞ ) and gm1 = gm2 = gm2 = 2.5mA/V. a) Draw the small AC equivalent circuit of the below amplifier. b) Determine the overall voltage gain.