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1) Design a BJT differential pair amplifier (balanced in, unbalanced out) that provides 20 dB differential gain and 40 dB CMRR. Assume β= 100, ro = 50 Kohm. Use dual dc power supplies +Vcc and -Vee.
2) ??????????????????A BJT differential amplifier is biased to have 500uA dc current in each device, β = 100, RC1 = RC2 = 1Kohm, and RE = 3Kohm. Assume ro = ∞. When operating in balanced in, balanced out mode what is the maximum allowable resistor tolerance (e.g.±N%) in order to have CMRR greater than or equal to 40 dB?
Hint: RC1 and RC2 may vary in opposite directions.
A 30hp 3 phase 360v 60 Hz induction motor has total internal losses of 2,500 watts when operating at full load. What is the motor's full load efficiency
1. Express the Boolean function f(X,Y,Z) = XY + X(Y + Z) in sum of products form showing the sum all nonzero minterms. 2. Express the Boolean function f(A,B,C,D) = A(B + BC) + ACD in sum of products form showing the sum all nonzero minterms.
Consider an InGaAs APD with excess noise x=0.7, M=10 where M is the multiplication factor. The unmultiplied dark current is 10 nA and bandwidth is 700 MHz. What is the avalanche photodiode noise current per square root of bandwidth
Describe your understanding of the similarity and differences between MOSFET and BJT, in terms of 1) terminal behavior, 2) i-v characteristics, 3) amplifier configuration, 4) small-signal equivalent models and 5) biasing technique.
Air Enters a cooling section at 97Kpa, 35C and 30 percent relative humidity at a rate of 6m^3/min, where it is cooled until the moisture in the air starts condensing. Determine the temperature of the air at the exit and the rate of heat transfer i..
Two teams of workers assemble automobile engines at a manufacturing plant in Michigan. Quality control personnel inspect a random sample of the teams assemblies and judge each assembly to be acceptable or unacceptable.
Addition of two numbers in IEEE 754 format A) a=3f200000, b=be600000 B) a=3f200000, b=ff800000 C) a=01100000, b=80e00000
Two charged, parallel, flat conducting surfaces are spaced d = 2.10 cm apart and produce a potential difference ΔV = 500 V between them. An electron is projected from one surface directly toward the second.
Indicate the magnitude and direction of the shear streses on the bottom of the block and the plate. If the force is removed suddenly and the block begins to slow, sketch the resulting speed versus time curve for the block.
Calculate the minimum number of PN bits required for each frequency hop for an FHSS system that employs a total bandwidth of 800 MHz and an individual channel bandwidth of 200 Hz.
an electric motor operates at 220V rms ,60 Hz, draws 20A rms, and has a power factor of 0.75 lagging. a) what is average power absorbed by the motor b) what value capacitor should be connected in parallel with the motor to give a power factor of 1
In a typical AC circuit, the supply voltage is 10 VPK and frequency is 60 Hz. If the current through the system is 2 APK with a phase angle of 60o, then the power dissipated by the source is
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