AC Motor Speed Controller for Modern Appliances Using LS7311

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

Schematic

Parts List

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