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The traffic light changes from green (logic 0) to red (logic 1) when thebeginning of the train is 1 mile from the junction. The light changes back to green when the end of the train is 1 mile away f
List the characteristics of an ideal op-amp. An amplifier has cutoff frequencies fc1 =1.2 kHz and fc2 = 16.4 kHz. Calculate the Bandwidth. List the names of the active filters by their voltagegain(dB)
A receive earth station has a line loss of 0.1 dB, followed byan amplifier with noise temperature 100 K and gain 50 dB, and areceiver with noise figure 30 dB. What is the equivalent noisetemperature
A compact disc (CD) records audio signals digitally by usingPCM. Assume that the audio signal bandwidth equals15kHz. a) If theNyquist samples are uniformly quantized into L = 65536 levels andthen bina
The propagation law follows the free space up to a distance ofdbreak = 50 meters, and for larger distances the receive power is similar to(d/dbreak)-4.2. Transmit antenna gain is -7dB; the receive
(i) an antenna connector and feedline with an attenuation of 1.5dB; a low-noise amplifier with a noise figure of 4 dB and a gain of 10 dB, and a unit gain mixer with a noise figure of 1 dB. What i
Generate an analogous diagram for a closed-loop controlsystem to maintain the water level in a tank that has a singleinlet valve (that can be controlled )and an unknown leak. Anexample of a closed -
The specificationof the desired low pass filter are A min=23 dB, A max=5dB, P=02and S=0.6. Design a Butterworth digital filter using bilinear transformation.
The synchronous motor is operating at 90% of its output rating. What must the power factor of the synchronous motor be adjusted toso that the overall power factor of the system is 0.97 lagging
A 3-phase synchronous generator rated at 75 MVA,13.8 kV (L-L) is connected to a power system that has a Theveninequivalent of j0.23 per unit at 1.0 per unit voltage. The synchronous reactance of the
a) The excitation voltage (Eaf), line-to-line when the generator is operating at rated voltage and current at apower factor of 0.9 lagging. b) The full load voltage regulation If the load is changed
Design both inverters with an on voltage of 0.7v., and a DC operating point of Vin = 0.8v., Vout =2.5v. Compare the inverters AC transfer curve and their rise and fall times. Use a load capaci
If the voltage across the current through the series combination ofa resistance and an unknown energy-storage element are v =200cos(10^(2)t + 60°) V and i = 5.547cos(10^(2)t + 93.69°)mA,
Design a Mealy state machinethat is a *majority vote* detector that indicates when the majorityof the last three samples received are ones. When at least 2out of the last 3 inputs received are ones,
What kind of EMC filter is needed to reduce emissions from aDC motor. The motor is connected in series with a battery. Anycomponents can be used to design the filter.
According to the tariff the owner agreedwith the utility company, the income generated is $0.16 per kWh atany time of the day. This figure is expected to rise annualy by20%. Ignore interst rates, an
A plane waveis obliquely incident on a perfectly conducting half-space. The magnetic field is perpendicular to the plane ofincidence. The incident Ehas anamplitude of 1V/m,and the incident angle is
You are repairing a guided transmission system made up oftransmitter module, coaxial link and a receiver. The receiver'serror rate has jumped dramatically recently after an electrical storm when sev
Design a system using a counter that produces a 1 output when theinput has been 1 for eight or more consecutive clock times. Use acounter with a clocked active low clear and no enable input.
The available powersupply voltages are VCC = 15 V andVEE=-15 V. Maximize |Avs| in a manner consistent with the otherspecifications. Use SPICE to find the midband gain and the upperhalf-power frequen
The Emf generated in each conductor of a 6 pole simplex wave winding is 0.48V. If the Armature has 42 slots and 125 commutator segments and there are 4 turns/coil. Calculate the terminal voltage of
A 'gate delay' can be described as the time needed for the outputof a gate to settle to its correct level after one of its inputshas been changed. The full-adder circuit we have designed wouldtheref
Given that a nonzero AC voltage source is applied, what can you say about whether the power, reactive and complex power are positive,negative, or zero for: A) a pure capacitor in series with a pure
Design a circuit to hold the lightsfor the indicated time. To help in the solution draw a blockdiagram of the problem, then a circuit diagram, then the requiredcalculations and values for all the ci