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Single phase AC Motor speed controller



Sir how to calculate values of RC snubber circuit for 1HP motor

In circuit diagram 2 what is the value of capacitor and resistor in parallel with triac and AC motor?

 good project

Pleasae provide me link for downloading the source code for this project as one of the two free downloads.





No link for schematic or source code

mr Ashutosh Bhatt  

i am univ.student electronic eng.

how can i make 3 phase AC motor speed control ?


can you help me ?


thank you so much for help me