For threephase, Fullwave, Semicontrolled rectifier, sketch the waveforms for following at firing angle Alpha = 90 and overlap angle Gama = 10
a The positive and negative voltage relative to neutral.
b The input current for phase (a)
In: Electrical Engineering
A 10pole induction motor is fed with a 230 V, 50 Hz supply used to drive multiple loads with 0.85 power factor. Answer the following.
i. State 3 types of starting circuit.
ii. Calculate angular speed (Ns) in rpm and slip (S). Given rotor
speed 550 rpm.
iii. Calculate the efficiency of the motor. Given output power 1000
W, copper loss 10 W, core loss 5 W and rotational losses 80 W.
In: Electrical Engineering

In: Electrical Engineering
a) Calculate and plot the DTFT of ?[?] = sin( (?/ 4)?) / ?? * cos ( ?/2 ?) by hand.
b) By using a 2x1 subplot, plot ?[?] signal defined in Question 1 in the first row. Take ? between 100 s and 100 s and limit xaxis between 20 sand 20 s. Be careful about when ? = 0. What is the value of ?[0]? While plotting ?[?] please write an if statement for ? = 0. After that, write a MATLAB code that calculates and plots the DTFT of ?[?]. Then, plot the DTFT of ?[?] in the second row of the subplot. Take 1000 equally spaced frequency values between 2π and 2π by using linspace. Do not forget axis labels.
In: Electrical Engineering
explain the dynamic modeling of three dof robotic arm with details and examples.
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Design a counter using JK Flip Flops and Gates, that counts 3,1,4,2,9,2,2,4 using a Moore Machine. Show Moore machine state diagram, state table and cirucit.
In: Electrical Engineering
Design an embedded system using a MSP430 to create a slot machine. Include a complete description of a slot machine designed using logic circuits.
You must submit a complete design with all the
hardware and software needs, include a c program that utilizes the
msp430 for this.
In: Electrical Engineering
In: Electrical Engineering
Using Cascaded counter with use minimum number of blocks, design
the following
1 MOD336 counter
2 MOD250 counter
3 MOD180 counter
4 MOD 360 counter
In: Electrical Engineering
Create matlab simulink model for dcdc buck converter
with screenshot.
Note: provide matlab code for the output of dcdc buck converter if
possible.
In: Electrical Engineering
Explain in detail, the procedure to identify the anode and cathode of an unmarked diode using an ohmmeter.
In: Electrical Engineering
13. a) Explain the working of a pneumatic P+I controller. b) A PI controller is reverse acting with PB = 20% and repeats per minute = 12 and derivative time 0.2 minutes. Determine the time at which the controller output reaches zero percent if the input error ep to the controller varies ep = 0.9t%, t ≥ 0 the controller output at t = 0 was72%.
In: Electrical Engineering
In: Electrical Engineering
In: Electrical Engineering
write 500 words about electric circuits
In: Electrical Engineering