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From given Example, sketch the scaling factor for the output transistor width as α varies from near zero to π/2.
Example:-Determine the amplitude of the first harmonic of the transistor drain current in Figure for a conduction angle of θ.
The output SNR of a 13-bit PCM was found to be insufficient at 30 dB. To achieve the desired SNR of 42 dB, it was decided to increase the number of quantization levels L. Find the fractional increase in the transmission bandwidth required for this..
A black box contains an impedance coil across the two available terminals of the box. The box 20 ampere from a 12-V battery and when it is connected to a 220-v 60 cycle source, it takes 900W.
Design an open-circuited, shunt stub matching network to match a 125 + j20 ohm load to a 700 MHz, 50 ohm generator. Show the lengths of your transmission lines in fractions of a wavelength. Show steps to solution please.
Find H[k], the 10 point DFT of h[n] and compute the output response of the system y[n], 0 ≤ n ≤ 4, using the convolution sum.
Explain and show how ultrasonic range-finding works and is used. Include visual information wherever possible to most effectively convey the information. This section must be organized using headings and subheadings - consider the most effective l..
In Chapter 3, we showed how to perform multiplication of unsigned integers by addition of partial products. Construct a multiplier for two 16-bit operands containing just one adder that adds successive partial products over successive clock cycles..
The contects of a six-bit register are initially 100101. The register is shifted four times to the right, with the serial input being 1101. What are the contents of the register after each shift
Consider a passive single-pole RC low pass filter. Describe the various hierarchical representations of the filter in terms of "layers" as discussed earlier in the chapter.
Calculate ?Ho for the combustion of butane gas (C4H10), to produce gaseous carbon dioxide and liquid water: 2C4H10 (g) + 13O2(g)->8CO2(g) + 10H2O (l) a. Calculate the standard enthalpy change, ?Ho for the reaction.
A cell phone transmits voice signals on a carrier. the transmissions lie inbetween 900MHz to 900.03MHz. What minimum sampling rate should be choosen so that the transmisions will be recoverable from the digital samles
Write the closed-loop transfer function.- What is the expression for β?- what is the required β and R2/R1?- what is the percent change in Av f ?
In a 120V compound generator, the resistances of the armature shunt and series windings are 0.06 ohm, 25 Ohm, and 0.04 Ohm respectively. The load current is 100A at 120V, find the induced EMF and the armature current of the generator.
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