I'm a student starting in this fantastic world of electronics.

I've been ask to write a report about practical applications of the z parameters in electrical/electronic engineering (two port networks)

I have found applications of abcd/transmision parameters, s parameters and h parameters but I cannot find applications of z parameters.

Taking into account the endless applications of electronics, I would be very grateful if somebody can give me practical examples of...

z parameters applications]]>

A- What is the blocking rate (B) in a cell, assuming this is a blocking system?

110/2760= 25.09 Erlang/reuse group

13*3=39 lines

Using the...

Cellular reuse groups]]>

i am given a controller T*s/(k*s+k) and a motor k/(T*s^2+s). the controller controls the ac motor. i am required to modify the Simulink block diagram by breaking the controller transfer function into its components and then sending the output to the motor in order to control the motor. i am also given the expected output, bode diagram and signal characteristics of the system. now when i start modifying the controller transfer...

Signals Filtering]]>

A(> | <)B

|...

Finding Distance for Boundary btw cell towers.]]>

I am curious about the equation 2.7(a), and trying to prove it. So, I did my own calculation, and got a different result from the textbook. Did I make a right calculation? Also, I want to know where is the time t = tr? (Since fig 2.2 begins at time t = t(k-1), not t=0)

Thank You

PS. The pdf file is cut from the book Advanced Electrical Drives Analysis, Modeling, Control.]]>

Two spherical point charges each carrying a charge of 40 mC are attached to the two ends of a spring of length 20 cm. If its spring constant is 120 Nm-1, what is the length of the spring when the charges are in equilibrium?

k = constant of proportionality

F = k ×(q1q2/r^2)

9x10^9 N

F = 360N

k...

Spring constant versus electric repulsion]]>

I am taking a class so no spoilers please!

Question:

A proton moving to the right at 6.2 × 10^5 ms-1 enters a region where there is an electric field of 62k NC-1 directed to the left. Describe qualitatively the motion of the proton in this filed. What is the time taken by the proton to come back to the point where it entered the field?

So far I have surmised that the proton should come to a stop shortly after entering the field. It should then accelerate towards the left,...

Particles in a Field]]>

Thanks in advance.]]>

I understand the basic principle behind filters; block unwanted frequencies and allow others through.

I don't think our professor expects much of us, probably satisfied with following the textbook examples, but I really want to understand what I am doing.

This is what I have...

Active Filter Design]]>

I tried googling, but apart from a few textbook exercises (which are at least based one realistic values, I assume), I couldn't find...

Dimensions of a pIаtter cарacitor]]>

So, I need to "form a synchronus sequential circuit that implements the fonite state machine from picture".]]>

The simulation software I am using is Multisim.

The circuits are fairly simple, and they all call for the same op-amp- a LM741J.

I have completed the first 3 parts of the...

Op-Amp Help]]>

Θ=arctan(Y/X)

The input signal is sin(wt+Θsig),

The reference oscillators r X (t)=sin(2?f ref t+ θ ref ) ; r Y (t)=cos(wt+ θ ref )

How are the values of the resistor and the reactance Xc calculated respectively from the above result?]]>

i have samsung's old model

it not have usb port.

so i want to make a device which connect pendrive to tv..

so how can i make.

So, I choose the supply to 5V and the output that i want to obtain to 20mA. From my calculations, I got R = 250ohms, and i choose it 270ohms (standard).

Class problem help (Converter U-I)]]>

Our VLSI teacher asked us for designing a CMOS inverter with TSMC 0.18um library, he gave us that library, but it has ".l" extension, and he originally wants us to do the project with hspice, but I don't have hspice installed on my machine, I told him and he agreed with ltspice.

Now, I have these questions :

1. Is it possible to use that library in ltspice?

2. Is it possible to calculate delay using ltspice?

Regards.]]>

what i know about the problem: that the diodes have 0.7 voltage each as Vd

diodes 3 and 4 only will conduct if the input voltage Va is positive. in this case there will be an output voltage at both C and B ( C is that output before the 1k ohm R )

for a negative voltage diodes 1 and 2 only will conduct and for this case there will be output voltage at B only how much???

this is what i am...

Voltage Regulation Using Diodes Problem]]>

We need to find IC and are given a 5Vrms source at 100Hz in a circuit with one Capacitor rated at 0.47uF

Now am confused on where to find the dv and dt. Can anyone help me on this..

Thank you]]>

i have tried to solve the first stage but i am not sure of my solutions + couldn't solve the second stage

the problem and my attempt to solve it in the attachments]]>

1.determine the parameters in tha configuration.

2 for the op amp with galvanic isolation find R1,R2,R3,R4.

3.DETERMINE what transducer this is and explain its functionality.

4.we want to measure the compresiion force in the 0-100N domain with a rezolution of 0.5N/div...make the block diagram, the number of bits and the logic of conversion

5.write and explain the sampling theorem in the area of...

Project for exam please help...]]>

I am working on project BLDC motor application. Here,I have to measure the temperature behaviours on MOSFET's in bridge driver in BLDC motor control for trapezoidal commutation. I have temperature sensors to measure the MOSFET's and have a software to see the temperature values for all MOSFET's. Can you please tell me How will be the characteristic curve between?

Thanks in advance]]>

"A coil having 1500 turns of a conductor with a combined cross-sectional area of 300mm(squared) and a mean length per turn of 400mm, has an inductance of 3H"

Calculate:

"The resistance of the winding if the resistivity (specific resistance) of the conductor is 4micro-OHM.m"

Some help would be hugely appreciated. I cannot find the correct formula...

Calculating resistance of winding in coil conductor?]]>

B. 4 A

C. 500 mA

D. 2 A

This is from a practice test my teacher made up. The 'correct' answer is B)4 A, but I think it should be A)250 mA. Thoughts? Thank you!]]>

View attachment 33891

View attachment 33889]]>

Thank You

BlackMelon]]>

half wave rectifier + voltage increase]]>

Simple voltage divider formula. B is the ratio. Now how can I solve for R2 if B = 0.462 and R1 = 1000?

I have gotten as far as R = 0.462/1 * R +1000/1 and I am stuck. I know I have to continue simplifying the equation, but it doesn't make sense. This is not actual homework, but I asked it here so I could be coaxed to remember the correct procedure.]]>

I need all workings out!

Data set 10 please

I've attached photos!]]>

I was given a project to do by my professor to measure the magnitude and phase of an RC circuit (1 resistor, 1 capacitor) through the Arduino Uno IDE. I am just new to Arduino and I hoping someone could point me in the right direction.

Thanks,

Coilin]]>

I'm trying to give a voltage Vb1 and Vb2 in the figure. What circuit topology do I have to use for this?

Thank You,

BlackMelon]]>

I have a question in my HND about R/2R ladders, I have been given the diagram below and asked the following question:

The voltages "as shown below" are:

1) When A= 1, B...

R/2R resistor ladder]]>