AC MOTOR SPEED CONTROLLER FOR MODERN APPLIANCES USING LS7311

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The project specifically designed for motor speed control application 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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