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The motor driven by a switch-mode dc-dc converter, which has a bus voltage of 200V. The switching frequency fs = 25 kHz. Calculate and plot the waveforms for va(t), ea(t), ia(t), and id(t) under the following conditions:
a) Motoring in forward direction at a speed of 1500 rpm generating 3Nm of torque.
b) Regenerative breaking from conditions in (a) with a current of 10A.
Write a testbench stimulus for the below 8-bit Shift-Left Register with Positive-Edge Clock, Serial In and Serial Out. Start with all ones after the 8th=bit shifted to the left all zeros.
S = {c(k + jl) | k = 3, 1, 1, 3 and l = 3, 1, 1, 3 and j = square root of -1, where c is a constant. Determine the value of c to ensure a unit energy constellation. Sketch this constellation. Find d^2 min and label the constellation points with bi..
What is the fundamental frequency of the spectrum of the square wave? What is the magnitude of the fundamental frequency component of the spectrum of the square wave?
You want to download a 5 Mbit file over a 10-Mbps Rayleigh fading channel in the 1800 MHz frequency band. You are traveling at 6 km/h and use 1000-bit packets.
Capacity, Data and Transfer Rates, Access Time of Disk Drive, A hard disk drive has 10 disks and 18 surfaces available for recording. Each surface is composed of 200 concentric tracks and the disks rotate at 7200 r.p.m.
a) Find the code word transmitted when the data word is 101100011011. b) Draw the LFSR circuit to generate the CRC. Generate the CRC by applying the data pattern to the LFSR and verify the answer in part a.
A certain 11 V dry-cell battery, completely discharged, requires a current of 100 mA for 1.2 hr to completely recharge. What is the energy storage capacity of the battery, assuming the voltage does not depend on its charge status?
First you must give all different possible connection types for them and then, for each case, you should develop some tests that can define the connection type and calculate the current passing through the capacitors.
At what temperature are the two carrier densities equal?
Consider an 8-user CDMA system. The data vector of all users is given by [1,1,1,1,-1,-1,-1,1]. Find the total transmit signal.
a resistor is required for an application that requires its value to be no less than 7.1k ohms and not more than 7.9k ohms. determine the nominal value and the maximum tolerance of the resistor you could use. explain.
This solution shows how to work from a given circuit implementation (a J-K flip flop circuit design) to derive the Boolean Logic and in so doing so simplify such logic using Boolean Algebra rules
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