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Give a circuit, complete with component values, for a weighted sum- mer that shifts the dc level of a sine-wave signal of 3 sin (ωt) V from zero to -3 V. Assume that in addition to the sine-wave signal you have a dc reference voltage of 1.5 V available. Sketch the output signal waveform.
A one quarter wavelength piece of 75 ohm microstrip line has a capacity load of Xc = 22 ohms. What impedance does a driving generator see
Two statistically dependent random variables x1 and x2 are applied at the inputs to a threshold detector , the output from which is equal to the number of inputs that exceed the threshold T. Thus, y = 0, 1 or 2.
Compute the complex power S (in polar form) drawn by a certain load if it is known that (a) it draws 100 Waverage power at a lagging PF of 0.75; (b) it draws a current I = 9 + j5 A rms when connected to the voltage 120/32 V rms
The signal x(t) consists of sum of two components, x1(t) and x2(t). The signal x(t) is bandlimited to 40 kHz, and it is sampled at a rate of 100 Khz to yield the sequence x(n). It is desired to suppress the signal x2(t) by passing the sequence x(n) t..
he input tothe receiver is a modulated wave of 0.3W average power and Gaussian noise of one-sided power spectral density of 10-8W/Hz. 1.if the detector is an envelope detector and the modulatedwave is A(1+0.8cos1000t)cos(6.28x1000000t),
A 1 kHz sine wave signal with a power level -10 dBm is applied to the input of the amplifier. What is the power at the amplifier output in dBW?
Assume that we have an image represents a sinusoidal variation orthogonal to the x-axis with amplitude of 10 and period of 1 cm, that repeats infinitely in all directions within the plane. Further assume an average intensity of 10.
A 4 pole DC generator has an armature winding containing a total of 648 conductors connected in 2 electrical parallel paths. If the flux per pole is 0.321 x 10^6 Maxwells and the speed of rotation is 1800 rpm.
Control Systems- PID Controller, Which one of the following statements regarding the operation of a PID controller is definately false?
There are 5280 feet per mile. There are 3 feet in a yard. Use appropriate parameter passing and return mechanisms. Use appropriate datatypes. For example, with inputs of 1760 yards and 1320 ft, the result would be 1.25 miles.
3. Which of the following is not an advantage of FETs over BJTs in RF amplifier usage. A) Their input impedance does not load down the Q of the circuit preceding the FET stage. B) The availability of dual gate FETs provides an isolated injection poin..
Actel Corporation manufactures an FPGA family called Act 1, which has the multiplexer based logic block. Show how the function f=w2w3'+w1w3+w2'w3 can be implemented using only one Act 1 logic block.
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