A shunt motor has a supply voltage of 200 V and armature resistance of 3.6 Ω. At certain torque the motor run at speed = 1200 R.P.M and take a current of 10 Amp from the supply and its field current is 0.5 Amp. Find starting torque, no-load speed, and the load torque when the current supplied by the supply is 5 Amp.

Speed control of motors (ac motors as well as dc motors) can be accomplished by
using solid-state switching circuitry In one such method, a solid-state relay is activated
using a switching signal generated by a microcomputer so as to turn on and off at high
speed, the power into the motor drive circuit. Speed of the motor can be measured using a
sensor such as tachometer or optical encoder. This signal is read by the microcomputer
and is used to modify the switching signal so as to correct the motor speed. Using a
schematic diagram, describe the hardware needed to implement this control scheme.
Explain the operation of the control system.

The following problems are related to PIC18F46K22 data memory:

(a) What is the data memory space and actual implemented size?

(b) What does direct addressing mean?

(c) What does indirect addressing mean?

(d) What is the Access Bank used for?

(e) What is the address range for Bank 6?

(f) What is the purpose of the registers FSR0, FSR1, FSR2 for?

Which of the following combinations of gates can be used to make a clocked SR flip-flop? Assume NOT gates have one input each, all other gates have two inputs each. (One or more is true. Your answer is considered correct only if all and only the true options are selected.)

A. 4 NAND gates,2 NOR gates

B. 2 AND gates,1 OR gates,1 NAND gates,1 NOR gates

C. 1 NAND gates,4 NOR gates

D. 1 OR gates,4 NAND gates,7 NOR gates

E. None of the above

Design an 8-bit adder. Show the truth table, logic circuit, and Verilog code.

Give an example on industrial application to the BJT with some explanation and draw the circuit diagram for the application which you chose  

Design a bandstop filter with a cutoff frequency of -3dB at W1 = 100 rad/s and W2 = 10,000rad/s. Confirm by plotting the magnitude and phase of the transfer function in matlab.

Design a state Variable Filter that has a corner frequency of 100 KHz and a quality factor (Q) of 20. Assume both the frequency-determining resistors and capacitors are equal.

in full bridge inverter system, distinguish which harmonic that need to be eliminate

Design, simulate, build, and test a passive first-order bandstop filter to remove a 440Hz noise component from an audio signal. Elements available for your design are

1) Resistors (ranging in value from 1Ohm to 1MOhm)

2) Inductors (5mH, 20mH, 100mH, 200mH, 500mH)*

3) Capacitors (ranging in value from 1nF to 10uF)

*Parasitic Resistances RL (0.9 Ohm, 1.9 Ohm, 13 Ohm, 23 Ohm, 73 Ohm

A matlab program to enter N numbers and count the positive, negative and zero numbers. Then print the results