Questions
Explain qualitatively the concept of superdiode. Draw a circuit that implements it and make a quantitative description

 
Explain qualitatively the concept of superdiode. Draw a circuit that implements it and make a quantitative description

In: Electrical Engineering

This is a atmega128 source to make a clock using the timer interrupt. I want to...

This is a atmega128 source to make a clock using the timer interrupt. I want to add source if i press switch (PIND==0x0FE&&PIND==0x0FD) then below program would be running .

#include<io.h>
int position=0,BJT[4]={0xFE,0xFD,0xFB,0xF7};
int number=0,segment[10]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90};
int msec=0, sec=0, min=0;
void main()
{
DDRA=0xFF;
PORTA=0XFF;
DDRB=0xFF;
PORTB=0xFF;
TCCR0=0x04;
TIMSK=0x01;
SREG=0x80;
while(1){}
}
interrupt[TIM0_OVF]void timer0_ovf_isr()
{
TCNT0=0x06;
PORTA=BJT[position];
if(position==0)number=sec%10;
if(position==1)number=sec/10;
if(position==2)number=min%10;
if(postion==3)number=min/10;
PORTB=segment[number];
position++;
if(position>3)position=0;
msec++;
if(msec==1000)
{
msec=0;
sec++;
}
if(sec==60)
{
sec=0;
min++;
}
if(min==60)min=0;
}


In: Electrical Engineering

Design and analyse of a circuit which turns a DC motor at a speed which is...

Design and analyse of a circuit which turns a DC motor at a speed which is proportional to how much a temperature is away from a set temperature, and turns:

Clockwise when temperature is greater than (say) 25 degrees C.

Anticlockwise when the temperature is less than (say) 20 degrees C.

Such a circuit might be used to regulate the temperature of a room by turning a ceiling fan to move warm air in/out of that room (using the roof cavity).

Report with following details

1. A full Block Diagram showing all from Input to Output.

2. Design calculation for each block

3.Full parts list

4. Circuit diagram

In: Electrical Engineering

My projects is to write or find Matlab code for 4FSK(frequency shift keying) with simulation pictures...

My projects is to write or find Matlab code for 4FSK(frequency shift keying) with simulation pictures and create the signal after that add noise to it and finally demodulate it ..

Please help me to do this project.

In: Electrical Engineering

Simplify Q2*= L’(F4+F5+F6+F7) + L +(F’1 F’2 F’3 F’5 F’6 F’7)+L’(F5+F6+F7)+ L’(F4+F3+F2+F1)+L+(F’1 F’2 F’3 F’4 F’6...

Simplify

Q2*= L’(F4+F5+F6+F7) + L +(F1 F2 F3 F5 F6 F7)+L’(F5+F6+F7)+ L’(F4+F3+F2+F1)+L+(F1 F2 F3 F4 F6 F7)+L’(F6+F7)+ L’(F5+F4+F3+F2+F1)+ L+(F1 F2 F3 F4 F5 F7)+L’(F7)+L’(F6+F5+F4+F3+F2+F1)+L+(F1 F2 F3 F4 F5 F6)

           

In: Electrical Engineering

Consider two Images of same dimensions where one image is an original image and other should...

Consider two Images of same dimensions where one image is an original image and other should be a degraded image.   

Write a matlab program to measure picture quality using objective assessment validation criteria for the degraded image and original image. Calculate MSE, PSNR, Normalized absolute error, Maximum Difference, Structural content, Average difference, Normalized cross correlation for the images.

  

Explain the importance of Objective assessment in Image processing

In: Electrical Engineering

Describe how quick changes are adapted and prevented in each method for source statistics? Explain in...

Describe how quick changes are adapted and prevented in each method for source statistics? Explain in elaborate?

In: Electrical Engineering

A lossless transmission line of length l=0.4? is terminated with a complex load impedance Z_L=60+j50 ?...

A lossless transmission line of length l=0.4? is terminated with a complex load impedance Z_L=60+j50 ? and characteristic impedance (Z_0=50 ?). Use Smith Chart to find: The VSWR on the line; The reflection coefficient at the load and its phase angle; The load admittance of the line Y_L in S; The input impedance of the line in ?; The distance to the first voltage minimum from the load in ?; and The distance to the first voltage maximum from the load in ?. By calculation only, verify the following parameters in Q3 part(a): The input impedance of the line in ?. The distance to the first voltage minimum from the load in ?. The distance to the first voltage maximum from the load in ?.

In: Electrical Engineering

There are multiple methods that can be used to design counters using VHDL, including equations, Boolean...

There are multiple methods that can be used to design counters using VHDL, including equations, Boolean operators, and state diagrams. What are some of the strengths and weaknesses of each method? Which method do you prefer?

In: Electrical Engineering

As a designer what will be your strategies to design a sustainable complex circuit?   VLSI technique

As a designer what will be your strategies to design a sustainable complex circuit?  

VLSI technique

In: Electrical Engineering

Questions regarding an open circuit transofrmer test: 1-What causes the primary current to be non zero...

Questions regarding an open circuit transofrmer test:

1-What causes the primary current to be non zero when the secondary winding is open circuied?

2-What is the main type of power loss being measured in an open circuit test?

3-The back-EMF equation tells us that the peak flux density is proportional to the AC supply voltage. Now knowing that the current which flows in the transformer under open-circuit conditions is the current (or mmf) which produces the magnetic flux density, explain why the peak open-circuit current increases nonlinearly whereas the applied voltage increases linearly.

4-Calculate the rated primary current of the following transformer ratings and express it as a percentage of the rated primary current.

A single-phase transformer (240/120V, 1kVA). Note: this transformer actually has two identical secondary windings, each rated at 1kVA resulting in a total transformer rating of 2kVA. However we are only considering one winding in the experiment and so the effective transformer is only 1kVA.

•AC mains supply (240V, 50Hz)

•An autotransformer (240V, 8A, 50Hz)•A 50? (5A) resistor with an unknown inductance (available on dc switchboard)

•A voltmeter (1000V) and an ammeter (5A), both available on the ac switchboard•Voltage and current transducers (available on the dc side of the main switchboard, but can be used to measure the instantaneous values)

In: Electrical Engineering

what is the used of The HFCT and its located cable of the transformer 132 KV...

what is the used of The HFCT and its located cable of the transformer 132 KV Cables (PD) ? and how its work

In: Electrical Engineering

Explain how you could do a level control loop, by making use of the FEED FORWARD...

Explain how you could do a level control loop, by making use of the FEED FORWARD philosophy

In: Electrical Engineering

Explain the relationship between the potential of the working, counter, and reference electrode in an amperometric...

Explain the relationship between the potential of the working, counter, and reference electrode in an amperometric gas sensor. Explain how this relationship changes as the sensor is exposed to the target gas.

In: Electrical Engineering

Explain what factors you would have to consider if you were doing amplifier matching on transmit...

Explain what factors you would have to consider if you were doing amplifier matching

on transmit modules for a radar system with an active electronically scanned array (AESA).

In: Electrical Engineering