Engineering Project Ideas: views : 1456

Testing Of Life Cycle Of Electrical Load Using Down Counter (in LCD Display)

It is very important to know approximate life cycle of any electrical loads. Sometime we have to put our electrical devices at remote place where it is not possible to take care of it regularly with ease. Also there are many requirement where failure of electrical appliance is very dangerous. Hence, life cycle of electrical appliances is very important parameter. This is a system design of for measuring the life cycle of electrical appliance.
Testing Of Life Cycle Of Electrical Load Using Down Counter (in LCD Display)
Testing of life cycle of electrical load


System Working

In The Testing Of Life Cycle Of Electrical Load Using Down Counter.  Following headings will be discuss here:

  1. Block diagram
  2. Circuit diagram
  3. Working of system
  4. Hardware requirements
  5. Software requirements
  6. Advantages
  7. Further improvements

System working

This system consists of following working parts

  1. Power supply for system
  2. User input
  3. Central Processing Unit (CPU)
  4. LCD Display
  5. Switches
  6. Electrical load

Power supply of this system is done using a step down transformer (12-0-12, 500mA rated). This transformer converts 220Vac to 12Vac. Then 12Vac is converted to 12Vdc by using bridge rectifier. This 12Vdc is again step down and fixed to 5V dc by using voltage regulator ic (LM7805). This 5Vdc is feed to microcontroller (ATmega8). Working of microcontroller here is that it read user instruction from user inputs and it processes it according to program that burned into it and outputs its activities to LCD display. Switches is used to start and stop electrical load according to the instructions and number of switching cycle is recorded.

System Working
Block diagram
System Working
Circuit diagram


Components Details

SN

Components

Ratings

Price/pcs

Quantity

Total Price

1

ATmega8 Microcontroller

8bit processor

175

1

175

2

DIP28 base

28pin base

20

1

20

3

Crystal

12Mhz

30

1

30

4

Voltage Regulator ic

LM7805

25

1

25

5

Diodes

1N7004

4

10

40

6

Transistor

BC547

5

5

25

7

Resistors

10k 0.25W

3

20

60

8

LEDs

3.5V, 10mA

5

20

100

9

Transformer

12-0-12, 500mA

80

1

80

10

LCD Display

16x2 LCD

250

1

250

11

Variable Resistor

10k, 0.5W

10

2

20

12

Connector and Bases

Male, female etc

100

1

100

13

Electrical bulb

60W

20

1

20

14

Soldering iron

35W

250

1

250

15

Soldering wire

Lead+

250

1

250

16

Capacitors

470uF

20

5

100

17

Micro button switches

Micro switch

5

5

25

18

Power switches

5A, 220Vac

30

25

60

19

Programmer

AVR programmer

1500

1

1500



Software requirement

  1. Window 7 or above
  1. Hard disk 200Gb or above
  2. 2Gb RAM or above
  3. Good graphic card
  4. USB port
  1. ATMEL STUDIO
  2. Extreme burner
  3. PL-2303 USB-Serial Driver

 

Advantages

  • Very easy to implement
  • Low cost component
  • Very accurate, because of microcontroller
  • It can be used for testing of many type of load
  • Very long life cycle can be calculate from this system

Further Improvements

In further improvements, this can be attached with voltage and current measuring sensors. This sensors will calculate the instantaneous voltage and current of the system. This will provide us more details about the system. We can draw graphical curves with life cycle vs (voltage and current).



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Posted By :
Mahesh Nigam
(Scientist)
2019-10-15 13:55
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Comments...

Brendy Marak: Can I order this kit

Reply 00:27 2023-12-17

Mahesh Nigam(Scientist): Where are you from?

Reply 09:58 2023-12-28

Brendy Marak: Can I order this kit

Reply 00:27 2023-12-17

Mahesh Nigam(Scientist): Where you want to deliver your order?

Reply 21:06 2024-01-10

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