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Thyristor Controlled Power for Induction Motor
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PROJECT DESCRIPTION

The project is designed to control AC power to a load by using firing angle control of thyristor. Efficiency of such power control is very high compared to any other method.

The project uses zero crossing point of the waveform which is detected by a comparator whose output is then fed to the microcontroller. The microcontroller provides required delayed triggering control to a pair of SCRs through opto isolator interface.

Finally the power is applied to the load through the SCRs in series. This project uses a microcontroller from 8051 family which is interfaced through a push button switch for increasing or decreasing the AC power to the load.

A lamp is used in place of an induction motor whose varying intensity demonstrates the varying power to the motor. The varying power results in variation in speed of the motor.

The project can be further enhanced by using direct 230 volt supply instead of 12 volt AC to the bridge rectifier for achieving higher voltage control for charging number of batteries in series.

PROJECT HIGHLIGHTS
Load Switch @ Zero Voltage.
Extensive audio-visuals available.
Branding-free material.
Call/mail for Tech Support from 10 am - 7 pm.
Pre-programmed Microcontroller.
All-inclusive solution kit.
Easy to use, Self-explanatory kit.
BLOCK DIAGRAM
Hardware Requirements
  • 8051 series Microcontroller
  • LM358
  • Opto isolators
  • SCRs
  • Push Button
  • Transformer
  • Diodes
  • Voltage Regulator
  • Resistors
  • Capacitors
  • Crystal
  • Lamp
Software Requirements
  • Keil Complier
  • Languages: Embedded C or Assembly
Q & A
Q:  Which microcontroller is used in this project?
A:  A 40 pin 8051 microcontroller is used in this project.
Q:  What is thyristor AC power control?
A:  By using push button provided, we can control the power to the load. This can also be done with Bluetooth see model no 325. Follow the link: http://www.edgefxkits.in/remote-ac-power-control-by-android-application-with-lcd-display
Q:  Can I place motor instead of lamp?
A:  Yes motor with rating, up to ¼HP 230V AC, can be placed instead on lamp.
Q:  How is the bulb intensity varied?
A:  The bulb intensity can be varied by delaying the firing angle of Thyristor, so as to control its triggering.
READ WHAT OTHERS HAVE SAID
Average Rating
 4.8/5
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Showing 4 of 10 reviews Show All
Anusha, Udaipur on 10th November, 2014, 10:22 AM

I decided to buy a kit from Edgefx because we get the components and kit which we want for our project.The way the audio-visuals are explained in the project and its knowledge is so special. It was a great learning experience to build the project.

Narayan , Allahabad on 20th October, 2014, 12:30 PM

I decided to buy a kit from Edgefx because all the facilities are provided here.I like the support provided by Edgefx.

Shravani, Allahabad on 30th July, 2014, 11:10 AM

I decided to buy a kit from Edgefx because all the facilities are provided here.Out of the most things, support from is the best. Edgefx support us to make this project.

Akanksha, Surat on 7th July, 2014, 02:47 PM

I decided to buy a kit from Edgefx because we get the components and kit which we want for our project.The way the audio-visuals explained the project and its knowledge is so special. It was a great learning experience to build the project.

Rating Breakdown (10 Reviews)
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