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Figure shows an SCR used in a circuit to provide variable electrical power to a resistive load from a high-power square-wave generator. The SCR trigger voltage is 2.5 V.
a. What is the range of R to provide 5% to 95% on time of the SCR?
b. Plot the voltages across the capacitor, load, and SCR for a 50% on time.
c. What is the average power delivery to the load at 50%?
Two loads are in parallel with a 1.2kV sinusoidal source. Load 1absorbs 60 kVAR at 0.6 leading power factor. Load 2 draws 90 kW at0.707 lagging power factor. A) How would i find the complex power in polar form
A 2.67-F and a 4.20-F capacitor are connected in series across a 25.0-V battery. A 8.24-F capacitor is then connected in parallel across the 2.67-F capacitor. Determine the voltage across the 8.24-F capacitor.
A sequential circuit hast two inputs (w1 and w2) and one output (z). Its function is to compare the input sequences on the two inputs. If w1 = w2 during any four consecutive clock cycles, the circuit produces a z=1; otherwise, z=0.
In an ideal diode, once it is conducting in the forward direction, the voltage across the diode remains constant no matterhow the current throught it changes. a) What is the effective resistance of an ideal diode when itis conducting in the forward..
The switch in the circuit(b) shown below has been in position A for a long time. It is moved to position B at time t=0. Find Vout(t) for t>0.
Consider a continuos time LTI system with step response given by ys(t) = tu(t) - (t - 2)u(t-2). Determine the output y(t) if the input to the system is given by x(t) = u(t) - u(t - 2) using complex domain (not time domain) analysis techniques.
If a direct expansion coil delivered from the factory has lost its nitrogen pressure charge, what should be done?
Give examples of numerical problems in network analysis with solutions and justification where Superposition theorem may be more useful than mesh/nodal analysis - The use of Thevenin's/Norton's equivalent circuit may be more useful than mesh/nodal an..
3-bit Serial in, Parallel out Shift Register with asynchronous active low reset Requirement:-use rising edge D-ff(D flip flop) with asynchronous active low reset
In a certain system, an electrical heating element was found to increase the temperature of a piece of metal 7o for each amp of current. The metal expands 0.004 in./deg and pushes on a load sensor that outputs 1 V/0.003 in.
Using time lines, show the arrival time, the processing duration, and the departure time for each packet. Also show the contents of the high-priority queue (Q1) and the low-priority queue (Q2) at each millisecond.
if we have an amplifier whose spec. is 2nV/rtHz and the bandwidth of the amplifier extends from 100Hz to 10kHz, and the gain of the amplifier is 5, how much noise should we expect at the output of the amplifier
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