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An Rl load as shown in figure below is controlled by a chopper. If load resistance R=0.25 ohms, inductance L=20 mH, supply voltage Vs=600V.
A two-port bridge connects on the end of a cable of length X m. to the end of a similar cable of length 3x/2 m.
Consider that the system starts always from state B. What happens if the system will start from another state - say A?
Use Shannon's expansion to derive an implementation using a 2-to-1 multiplexer and any other necessary gates.
Use algebraic manipulation to find the expression f(x1, x2, x3) = SUM m(1,2,3,4,5,6,7).
A full-wave bridge rectifier circuit with a 1-kohms load operates from a 120-V (rms) 60-Hz household supply through a 10-to-1 step-down
Is it valid for me to do a KVL around the C-E loop using ic=4.8ma and vce=6v (ie=ic (b+1/b)) to find RE? And then get Rth=.1(1+beta)*Re?
A dc motor has a transfer function , determine whether the system is controllable or observable.
The parameters of the transistor are Beta=100 and Va=100V. Find the DC voltages at the base and emittter terminals.
An audio signal s(t)generated by a loud speaker is reflected at two different walls with reflection coefficients r1 and r2. the signal x(t).
Select a feedback format so that the system is critically damped and the settling time (2% criterion) is 2 seconds. Solve for K1 and K2.
When a square wave with a fundamental frequency of 2khz and amplitude 5v and comprised of up to five odd harmonic.
A unit for a telecommunications system is to be designed so as to have a minimum availability of 0.9994.
Design a differential amplifier as shown in Figure 11.28 incorporating a basic two transistor current source to establish Iq.
A 200 km long cable operates at T1 rate. The propagation speed in the cable is 2/3 of speed of light (200,000 km/sec). How many bits can fit in the cable?
The sampling rate in the A/D and D/A is 100 samples/second, and the impulse response in the figure above is h (k) = (0.5) k u (k).
Sketch the root locus for the following closed loop system as a varies from -8 to +8. You should calculate all steps.
An AC-AC converter is used to obtain a variable AC output voltage Vo from a fixed AC source and a single-phase converter with a TRIAC.
Generate 200 samples of the sequence y(k) and process through the filter designed in part (a) to obtain the output z(K).
An analogue signal is to be sampled from a transducer with an output voltage range of 0 to 10 volts and operating on a 12-volt power supply.
A waveform v(t) has a Fourier transform which extends over the range -F to +F in the frequency domain.
Given a 16-to-1 Multiplexer, how many of the following are required:Convert the following numbers as indicated.
The tones are pure sinusoids with one at frequencies 8GHz and the other at frequency 8.03GHz,(delta f =0.03GHz).
A company needs to provide sufficient private trunks between two switches to accommodate 90% of call attempts among employees.
Compute a K of the form [ 1 k2] so that (A - BK, C) is unobservable. (I.e., the closed loop system is unobservable).