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PROJECT DESCRIPTION

The project is designed to control AC power to a load by using firing angle control of thyristor. The efficiency of such a 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 a 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 anti parallel SCRs in series.

This project uses a microcontroller from the PIC16F8 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 ( not included) whose varying intensity demonstrates the varying power to the motor. The varying power would result in variation in speed of the motor if used in place of lamp.

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 a number of batteries in series.

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The project is designed to control AC power to a load by using firing angle control of thyristor. The efficiency of such a 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 a 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 anti parallel SCRs in series.

This project uses a microcontroller from the PIC16F8 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 ( not included) whose varying intensity demonstrates the varying power to the motor. The varying power would result in variation in speed of the motor if used in place of lamp.

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 a number of batteries in series.

PROJECT HIGHLIGHTS
Easy to use, Self-explanatory kit.
All-inclusive solution kit.
Extensive audio-visuals available.
Branding-free material.
Call/mail for Tech Support from 10 am - 7 pm IST.
×
Easy to use, Self-explanatory kit.
All-inclusive solution kit.
Extensive audio-visuals available.
Branding-free material.
Call/mail for Tech Support from 10 am - 7 pm IST.
BLOCK DIAGRAM
Thyristor Controlled Power for Induction Motor using PIC Microcontroller
Hardware Requirements
  • PIC16F8 series Microcontroller
  • LM358
  • Opto isolators
  • SCRs
  • Push Button
  • Transformer
  • Diodes
  • Voltage Regulator
  • Resistors
  • Capacitors
  • Crystal
  • Lamp.
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  • PIC16F8 series Microcontroller
  • LM358
  • Opto isolators
  • SCRs
  • Push Button
  • Transformer
  • Diodes
  • Voltage Regulator
  • Resistors
  • Capacitors
  • Crystal
  • Lamp.
Software Requirements
  • CCS C Complier & MPLAB
  • Languages: Embedded C or Assembly
×
  • CCS C Complier & MPLAB
  • Languages: Embedded C or Assembly
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