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(a) Add a count-down timer mode to the wristwatch module of Figures 11-2 and 11-3. The timer should count seconds, minutes, and hours. When in the timer state, B2 should change states to allow setting the hours, minutes, and seconds with B3. When setting is complete and the wristwatch is back in the main timer state, B3 should start the count-down. If B3 is pressed again, it should stop the count-down; otherwise, the count-down stops when it reaches 00:00:00, in which case the timer beeps for one second.
(b) Modify the test bench and test your timer.
Derive the LPE model for the limiter given and plot A versus f(A). Note that the Fourier integral will have to be evaluated using numerical integration procedures.
Suggest an additional resource constraint that will prevent the deadlock in Problem 6.6 but still permit the boundary between input and output buffers to vary in accordance with the present needs of the processes.
When a 0.900kg mass oscillates on an ideal spring, the frequency is 1.49Hz . A)What will the frequency be if 0.300kg are added to the original mass. Try to solve this problem without finding the force constant of the spring.
Three identical impedances of (12+j15)ohms are connected in wye to a 550V balanced three phase source. Determine, (a)the magnitude of the line currents. (b) the total power dissipated for the three phases. (c)the total reactive power. (d)the power..
Give examples of numerical problems in network analysis with solutions and justification where Superposition theorem may be more useful than mesh/nodal analysis - The use of Thevenin's/Norton's equivalent circuit may be more useful than mesh/nodal an..
A transmitter is using a 2B1Q and operating at 3 Mbps. What is the minimum bandwidth necessary on the transmission line for successful communication
Consider the inductor of Problem. Write a simple design program in the form of a MATLAB script to calculate the number of turns and air-gap length as a function of the desired inductance.
In a 50 KVA, Y connected, 440 V, 3 phase, 50 Hz alternator, the effective armature resistance is 0.25 ohms per phase. Synchronous reactance is 3.2 ohms per phase. Determine at rated load and unity power factor,
A charged parallel-plate capacitor is disconnected from a battery, and the plates are pulled a small distance further apart. For the following quantities, indicate where they increase, decrease, or stay the same.
Suppose that we are designing a cardiac pacemaker circuit. The circuit is required to deliver pulses of 1-ms durstion to the heartthat can be modeled as a 500-Ω resistance. The peak amplitudeof the pulses is required to be 5 V.
For a narrow-band amplitude modulated signal having the carrier frequency 5000 MHz propagating in an air dielectric parallel-plate waveguide of dimension a = 5cm, find the velocity with which the modulation envelope travels
The voltage across a 1-µF capacitor is given. - What is the sinusoidal expression for the current?
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