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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.
Using a 3-V power supply, design a version of the circuit of fig 6.62 from the book. to provide a dc emitter current of 0.5 mA and to allow a +-1-V signal swing at the collector. The BJT has a nominal B=100. Use standard 5 % resistor values
An electronic PI temperature controller has an output p of 12 mA when the set point equals the nominal process tmperature. The controller response to step change in the temperature set point of 3 mA
A two stage counter has two input, M and N. (a) Design a counter assuming the outputs come directly from J-K flipflops. (b) Design the counter assuming a two-stage binary counter is used with the J-K flipflops outputs decoded.
1- Find the voltage across the inductor for t > 0 2- Sketch the voltage and the current as a function of time 3- Find the power ( in microwatts) at the terminals of the inductor when t = 200 ms
A transmission line segment with Zo=50 Ohms and of length l is terminated at a load resistance of RL that can be varied. Sketch the input impedance Zin as a function of RL if (a) l=(wavelength/4) and (b) l=(wavelength/2).
The solution to Power Factor, Two single-phase loads are connected in parallel across a 415 V, 50 Hz supply. One load is rated 130 kW at a power factor of 0.75
It is required to use a peak rectifier to design a dc power supply that provides an average dc output voltage of 15 V on which a maximum of 1-V ripple is allowed. The rectifier feeds a load of 150 ohm.
Find the capacity of the cascade connection of n binary-symmetric channels with same crossover probability ε. what is the capacity when the number of channels n=2.
A sinusoidal message signal has a frequency of 10 Hz. The signal is the input to an FM modulator with an index of 8. Determine the bandwidth of the modulator output if a power ratio, Pr = 0.8 is required.
Two ways to implement a serial adder (A+B). it is necessary to modify the circuits to convert them to serial subtractors (A - B).Using the circuit to show the changes needed to perform A +2'scomplement of B.
An analog signal has a bandwidth of 37 kHz and must be digitized in an ADC. The peak voltage is 7V and you need to maintain a resolution of 0.078V. Find the number of bits per sample and then
Discuss the effects of signal attenuation on the noise figure. Why is it important to minimize losses in the input of the amplifier
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