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Why do we need filters in a power supply, under what condition we shall prefer a capacitor filter?
Running at 1200 rpm from a 280-V source, a series-connected dc motor draws an armature current of 25 A. The field resistance is 0.2Ω, and the armature resistance is 0.3 Ω. Assuming that the flux is proportional to the field current, determine the ..
Determine the period of a clock waveform whose frequency is: a. 2 MHz b. 500 kHz c. 4.27 MHz d. 17 MHz. Write the VHDL text file (Entity and Architecture) for a 2-input NAND gate. Write the VHDL text file for a 3-input NOR gate.
In a 2-pole, three-phase PMAC drive, the torque constant and the voltage constant are 0.5 in MKS units. A constant torque of 5 Nm is developed to bring the system from rest to 5000 rpm in 5 seconds.
How to Wire Solar Panel to 220V inverter, 12V battery ,12V,DC Load?
Looking at a sine wave, describe how the ROM in a DDS could use only one-fourth of the memory locations to store the sine wave look-up table. Discuss how narrowing the bandwidth of a circuit affects the noise level.
The HCS112 SPI is configured for 6 Mbaud. Assuming that it takes 1 microsecond to load each character, how much time is required to transmit 10 characters
Find the impulse response fpr the filter? How many nonzero terms does the impulse response contain?
A signal x(t) is sampled 4 times and the samples are {x[0], x[1], x[2], x[3]}. Its DFT harmonic function is {X[0], X[1], X[2], X[3]}. X[3] can be written as X[3] = a x[0] + b x[1] + c x[2] + d x[3]. What are the values of a,b,c and d
what is the impedance of a resistor r in parallel with a series combination of a capacitor c and an inductor l?
Give a different equation, in terms of the input and output, to describe the system. Is the system stable?
Suppose that two optical guides embedded in a substrate such as LiNbO3 are coupled as in the below figure and the transmission length Lo=10mm. If the coupling separation d is =10µm, n = 2.2, the operating wavelength is 1.3µm
1. How much noise can be tolerated in a digital system using a 5 V power supply 2.What functions does an H-bridge perform in controlling a small DC motor 3.Explain how to calculate the duty cycle of a pulse in terms of frequency and width.
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