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To conserve energy in an office, you have developed a sensor thatturns on the lights after determining that a person has entered theroom. However, if the person does not push a continue buttonon the device, the lights turn off in two minutes. 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 circuit elements and finally the results to support the analysis.
The Dinorwig pumped storage hydroelectric facility in Northern Wales utilizes an abandoned slate quarry named Marchlyn Mawr as the upper reservoir. 600 meters below the Llyn-Peris lower reservoir can be found. The plant contains six 288MW generato..
a. What is the expected amplification of a BJT transistor amplifier if the dc supply is set to zero volts. b. What will happen to the output ac signal if the dc level is insufficient.
An asynchronous cardiac pacemaker operates at a rate of 70 pulses/min. These pulses are of 2ms duration and have an amplitude of 5V when driving a 500ohm load. A) What is the total energy supplied to this load over a 10 year period
Write a program for the dragon 12 so you can manipulate all four 7-segment LEDs:You will be able to enter any number or any sequence and be able to display them on the LED's each for one digit, and when you enter a sequence of 4 specific numbers
A 300 kW, 6600 V, 8-pole, 50 Hz, three-phase, Y-connected, non-salient pole (i.e., cylindrical rotor) synchronous motor has the following parameters: Xs = 72 ohm /phase at 50 Hz, R =10 ohm/phase for operation near base speed, and Efo = 3200 V/phase..
Assume that we try to predict this sequence with a BHT using one-bit counters. The counters in the BHT are initialized to the N state. Which of the branches in this sequence would be mis-predicted?
Design a circuit for easy connection between a TTL gate and a TRIAC that uses a buffer transistor between the output port of the gate and the TRIAC. (a) In the 1st and 4th quadrants, (b) In the 2nd and 3rd quadrants.
If we want to correct the power factor to 0.9 lagging, what is the value of Q we need to inject.
Assume that there is about 1 toilet for every 3 persons, that existing toilets use an average of 15 liters per flush, that a toilet is flushed on average 14 times per day, and the cost to install each new toilet is $150.
What is the minimum of bits in its instruction codeword How would your answer change if you also knew that 30% of the possible permutations of instruction word bits are not used
Independent of circuit details, for a digital input code of (b1, b2, b3, .... bn), the output of an n-bit digital to analog conversion output is of the form output = K (b1 + (b2/2)+ (b3/4)...+(bn/ 2^n-1)) For a particular 5 bit DAC the output volta..
a.) The current in a 75 mH inductor changes uniformly by 200 mA in 0.1 ms. What is the voltage across it b.) Determine the inductance of an air core coil with length 20 cm, 200 turns and a diameter of 2 cm.
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