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a. The precision full-wave rectifier in Fig. (a) has R1 = R2 = RF = R = 10 kΩ , R3 = 40 kΩ , and R4 =40 kΩ . The input voltage is vS = 2 sin (377 Πt). Plot the transfer characteristic and draw the waveform of the output voltage vO.
b. Use PSpice/SPICE to plot the transfer characteristic and the output voltage.
What are the Methods for Power Factor Improvement ? (with expalanation of every Method) and What is their Advantages and Disavantages ?
Energy stored in a spherical capacitor. A spherical capacitor is formed by two concentric, conducting shells (Figure 4.77). What is the change in stored energy if the dielectric is removed? Assume a known charge +Q on the inner shell and -Q on the..
What is mutual coupling in a magnetic circuit? and What is coefficient of magnetic coupling ? Need the ansswer for this Question with full explanation .
A system has a powe gain of 52. Directivity is measured as 90 and the dissipated power in an antenna with a gain of 700 is 1.9 watts. what is the EIRP in watts and dBm
What should be the capacitance of a capacitor, in series with a 250-ohm resistor, that will limit the current to 1.2 A when the circuit is connected to a 600 V 60-cycle source
Various radio stations in a given geographical region are assigned different carrier frequencies so that the frequency ranges of the signals do not overlap. Suppose that a certain AM radio transmitter has a carrier frequency of 980 kHz.
(a) the conductivity in a p type silicon semiconductor at T=300 K is sigma=0.25 (ohm-cm)^-1. Determine the thermal equilibrium values of electron and hole concentrations. (b) Repeat part (a) for n type GaAs semiconductor if the resistivity is rho=..
y[n + 2]- y[n +1]+ 0.5y[n] = 4x[n +1]+x[n] a. Find the system's transfer function b. Find the system's impulse response c. Find its unit step response when the ICs are y[-2] = 2 and y[-1] = 1.
you are to design a serial sequence detector. your design will take in a clock reset and a one-bit data signal. your
the hd cable signal send out is usually ranging between (1-25mv), with the frequency range from 1000Hz- 20Khz. An amplifier will gain 46 db will boost the signal before sending it through the cable connection.
Simulating shadow fading. Simulate a sample path of a shadow fading process for equispaced samples on a straight line. Assume a correlation distance Dc = 500 m and a standard deviation of σz = 7.5 dB (these values are from Gudmundson's paper).
A 50 kVA, 6360V/230V transformer is tested on open and short-circuit to obtain its efficiency. The results of the tests are as follows. Open circuit: primary voltage, 6360V; primary current, 1A; power input, 2 kW. Short circuit: voltage across pri..
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