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PIC Microcontroller Based Industrial Power Control by Integral Cycle Switching without Generating Harmonics
Model: 430    

Solderable DIY project kit for Engineering & Diploma students

Product of choice for Engineering & Diploma students worldwide.

Do-It-Yourself Kit

Rs. 4,259

Rs. 3,450

Includes complete hardware with plain PCB and a pre-programmed controller for building the project. Extensive documentation for project execution including step-by-step instructions for Circuit building, Assembly procedure and Troubleshooting. Thorough understanding from the Problem definition to Circuit Design to Programming, Testing, Troubleshooting and finally building a working hardware project.

Tool Kit

(Recommended)

Rs. 350

Includes Digital Multimeter, Soldering Iron, Screw driver, Cutter, to be used with Do-It-Yourself Kit to build the project.

Loaded and Tested PCB

(Optional)

Rs. 1,309

Rs. 1,179

Pre-soldered and tested PCB. Choose this option only if you are short on time. Only works along with the Do-It-Yourself Kit. (Can be purchased later)

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PROJECT DESCRIPTION

The project is designed to achieve integral cycle switching which is a method to remove whole cycle, cycles or portions of cycles of an AC signal. It is a well-known and old method of controlling AC power, especially across linear loads such as heaters used in electric furnace. However, the concept of achieving the cycle stealing of the voltage waveform by use of microcontroller can be very precise as per the program written in assembly / C language. The actual time-average voltage or current experienced at the load is proportionately lower than the whole signal if applied to the load. In place of a linear load at the output, a series / universal motor or lamp can be used to verify the output. One side effect of utilizing this scheme is an imbalance in the input current or voltage waveform as the cycles are switched on and off across the load , hence are not very much suitable for induction motors.

In this project, we are using comparator for zero crossing detection, which is fed as an interrupt to microcontroller of the PIC16F8 family. Here the microcontroller delivers the output based on the interrupt received as the reference for generating triggering pulses. Using these pulses, we drive  Opto-isolators for triggering a TRIAC to achieve integral cycle control as per the input switches interfaced to the microcontroller. A lamp is provided in this project in place of a motor for demonstration purpose. Flickering lamp intensity in different switching is not to be considered as simple PWM switching. The real  waveform can be seen on any DSO as to how the cycles are eliminated

Furthermore, this project can be enhanced by using feedback mechanism to automatically maintain desired output to the load by appropriate cycle stealing.

 

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.
Can be Customized for Arduino, Raspberry Pi, PIC
BLOCK DIAGRAM
Industrial Power Control by Integral Cycle Switching without Generating Harmonics using PIC Microcontroller
Hardware Requirements
  • PIC16F8 series Microcontroller
  • Op-amp
  • Opto-isolator
  • TRIAC
  • Resistors
  • Capacitors
  • Diodes
  • Voltage Regulator
  • LED
  • Crystal
  • LCD
  • Lamp.
Software Requirements
  • CCS compiler
  • MPLAB
  • Language: Embedded C or Assembly
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Tool kit cannot be purchased individually.

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