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It is required to design a peak rectifier dc power supply(i.e. one that uses a filter capactor) that provides an average dcoutput voltage of 15V on which a maximum of ±1V ripple isallowed. The rectifier feeds a load of 150Ω. The rectifier is fed from the line voltage(120Vrms,60hz)through a transformer. If a bridge rectifier circuit is used,determine the following: (Assume the diode drop is0.7V)(A)The rms voltage that must be available across the secondary transformer(B)The size of the filter capacitor, C=?(C)The PIV of the diodes, PIV=?
mutual shifted by 90 degree currents through each of both windings of the single phase A motor are (5.5+1.7) A but RMS voltage of the supply is 220 V. How big will be torque on shaft of the motor is efficiency factor (\eta\) is 0.7
A well-behaved analog signal with a frequency of 20 kHz is being sampled. What is the sampling frequency of frequency aliasing occurs
Fix the value KP > 0 selected in (b), and obtaina root locus plot with respect to Kω using Matlab. Can you find a valueKω > 0 for which the closed loop system is stable Discuss how you might modify your design based on your conclusions.
Design a PD Controller G_c(s) = K_p + K_d*s using the root-locus method such that the closed-loop system has a damping ratio, zeta = 0.7 and a natural frequency, omega_n = 0.5 rad/sec.
Three screws are drawn at random from a lot of 100 screws, 10 of which are defective. Find the probability that the screws drawn will be nondefective in drawing (a) with replacement, (b) without replacement.
Let x(n) be the input signal to a discrete-time filter with impulse response hi(n) and let yi(n) be the corresponding output. These sequences are written such that the first value islocated at instant n=0. (a) Plot x(n) and y1(n).
Assume X is normally distributed with a mean of 5 and a standard deviation of 4. Determine the value for x that solves each of the following: (a) P(X > x) = 0.5 (b) P(X
There are contacts at the two ends, x=0,W. The contact at x=0 is transparent. Light falls on the contact at x=0 creating electron-hole pairs at a rate GL(x)=GL,0 exp(-x/λ), λ =/= L0. Calculate the steady-state excess electron concentration.
A 50-cm-long copper wire with a cross-sectional area 1.2286x10^-10 m^2 is used to connect a voltage source and a device. What is the maximum voltage if the current is required to be not bigger than 5A
An additional variable power factor load is to be added to the factory. The new load will add 320 kW to the factory. The power factor of the variable power factor load is to be adjusted so that the overall power factor of the factory is 0.96 laggi..
A circular polarized wave in air is incident on glass surface. The angle of incidence equals the Brewster angle. Refractive index of glass, n(glass) is 1.35. Find the following quantities 1) The Brewster angle. 2) The angle of refraction
Three-phase transformers are grouped according to the phase shift between their primary and secondary phase voltages. Discuss the transformer classification adopted by the standards and elucidate the terminology used for describing various transfo..
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