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AC Motor Speed Controller for Modern Appliances Using LS7311

  • Rajkumar Sharma
  • 11.515 Views
  • medium
  • Tested
  • SKU: EL63883
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The project was specifically designed for motor speed control applications in appliances such as blenders, etc. Tact switches provided for selecting/indicating from 1 to 10 power levels ( Speed Levels).  The project is ideal for universal and shaded-pole motor speed control for modern appliances design. Eliminates awkward mechanical switch assemblies and multi-taped motor winding.

Features

  • 10 Tact Switch for Speed Selection
  • 10 LEDs for speed indication
  • On-Board Stop and Start Switches ( Start Switch Latch Operation)
  • Momentary Run Switch
  • Supply 230V ( 110V Possible Refer Data sheet for components Change)
  • 300W Load
  • On-Board snubber for Inductive Load
  • No Separate DC power supply required
NOTE: Dangerous voltages of 220V AC appears on this project. So take appropriate protection measures.

Schematic

Parts List

PCB

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stathis

nice. dimensions?

Airton

I’m having a hard time finding this circuit for sale.

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