physically what is diode bulk resistance?

For three-phase, Full-wave, Semi-controlled rectifier, sketch the waveforms for following at firing angle Alpha = 90 and over-lap angle Gama = 10

a- The positive and negative voltage relative to neutral.

b- The input current for phase (a)

A 10-pole 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.

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 x-axis 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.

explain the dynamic modeling of three dof robotic arm with details and examples.

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.

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.

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

Create matlab simulink model for dc-dc buck converter with screenshot.
Note: provide matlab code for the output of dc-dc buck converter if possible.

Explain in detail, the procedure to identify the anode and cathode of an unmarked diode using an ohmmeter.

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%.