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a blocked-rotor test was performed on a 5-hp 220-v four-pole 60 hz three-phase induction motor the following data were
an ac induction machine has six poles and is designed for 60-hz 240-v rms operation when the machine operates with 10
a six-pole induction motor for vehicle traction has a 50-kw rating and is 85 percent efficient if the supply is 220 v
a a three-phase 220-v 60-hz induction motor runs at 1140 revmin determine the number of poles for minimum slip the slip
a 60-hz four-pole y-connected induction motor is connected to a 200-v line to line three-phase 60 hz line the
the name plate of a squirrel-cage four-pole induction motor has the following information 25 hp 220 volts three-phase
the nameplate speed of a 25-hz induction motor is 720 revmin if the speed at no load is 745 revmin calculatea the slipb
a nameplate is given in example 172 find the rated torque rated volt amperes and maximum continuous output power for
a 3-phase induction motor at rated voltage and frequency has a starting torque of 140 percent and a maximum torque of
devise a pipeline architecture that can perform the computation described in exercise 91 using all the available
if a kernel of an algorithm is accelerated by a factor of 100 and the kernel accounts for 90 of execution time before
for a kernel that consumes 90 of execution time what speedup for the kernel would be required to achieve an overall
suppose there are two options for accelerating a kernel that consumes 80 of a systems execution timeoption 1
use the sobel convolution masks to compute the approximate derivative pixel at the center of each of the 3 times 3
consider a lower-performance version of the sobel accelerator dealing with video frames of 320 times 240 8-bit pixels
write a complete gumnut program that monitors the value of input controller register 10 when the value changes from 0
modify the design in figure 78 to provide separate instruction and data memories for the 8051 a 64k times 8-bit rom for
suppose a cache can satisfy a processor request in 5ns if it has a hit otherwise the memory access time of 20ns must be
suppose a cpu with 32-bit instructions has an instruction cache with 16-byte lines addresses refer to bytes in memory
design a keypad controller to connect a gumnut core to the keypad described in exercise 81 the controller should
show how the input controller described in example 813 on page 364 can be used for a volume control knob with an
develop a gumnut interrupt handler that responds to interrupts from the incremental encoder input of exercise 84 the
develop a gumnut subroutine to perform an analog-todigital conversion using successive approximation returning an 8-bit
some digital audio applications use an led bar display consisting of a row of led indicators to display the volume
write a gumnut subroutine that performs the function of the circuit described in exercise 88 the subroutine takes an