AC MOTOR SPEED CONTROL USING POWER TRIAC
WITH DISPLAY UNIT
Technical specifications:
Title of the project : AC Motor Speed Control using power Triac
With
display unit
Domain : Embedded Systems Design, Electrical
Software : Embedded C, Keil, Proload
Microcontroller : AT89S52
Power Supply : +5V,
500mA Regulated Power Supply
Display : LED
5mm, 16 X 2 LCD
Switches : Switch
Array
Crystal : 11.0592MHz
Applications : Industries,
Office and Home Applications
ABSTRACT:
Nowadays,
there are various electronic equipments available for different applications. Our
application is to control the speed of AC Motor using switches.
An
array of switches will be provided for the user to control the motor. Each
switch represents different speed. So according to the switch pressed the speed
of motor will be varied.
In
this project, we are using TRIAC driver for our AC Motor because our Microcontroller
cannot provide the maximum current to drive an AC Motor. So using Triac we will
be driving the AC motor. Driving an AC motor is not only the criteria but also we
need to protect the microcontroller from high currents, for that purpose we are
using a component called MOC 3021. A 16X2 LCD is used for the displaying the
speed of the motor at which it is rotating.
This project can
be applied in various areas like spinning industries, offices and in
manufacturing of home appliances etc.
This project uses regulated 5V, 500mA
power supply. 7805 three terminal voltage regulator is used for voltage
regulation. Bridge type full wave rectifier is used to rectify the ac out put
of secondary of 230/12V step down transformer.
Advantages:
Accurate speed control
Applications:
Process Industries, Bottle filling
industries, Conveyers, Home Applications
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